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Journal articles on the topic 'Hard superalloys'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

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1

Kursuncu, Bilal, Halil Caliskan, Sevki Yilmaz Guven, and Peter Panjan. "Wear Behavior of Multilayer Nanocomposite TiAlSiN/TiSiN/TiAlN Coated Carbide Cutting Tool during Face Milling of Inconel 718 Superalloy." Journal of Nano Research 47 (May 2017): 11–16. http://dx.doi.org/10.4028/www.scientific.net/jnanor.47.11.

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The Inconel 718 superalloy is one of the most-used nickel based superalloys in the aerospace industry due to its superior mechanical properties, for instance, high thermal and chemical resistance, and high strength at elevated temperatures. However, the work hardening tendency, low thermal conductivity and high hardness of this superalloy cause early tool wear, leading to the material to be called as a hard-to-cut material. Therefore, deposition of a wear resistant hard coating on carbide cutting tools has a critical importance for longer tool life in milling operations of the Inconel 718 supe

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2

Pan, Lei, ZR Wu, Lei Fang, and YD Song. "Investigation of surface damage and roughness for nickel-based superalloy GH4169 under hard turning processing." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 234, no. 4 (2019): 679–91. http://dx.doi.org/10.1177/0954405419885789.

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Machined surface condition of nickel-based superalloys has an important influence on the functional performance of the components. Proper selection of cutting parameters could improve surface finish and increase service life of parts and components. This research work bases on an experimental and statistical study of turning GH4169 nickel-based superalloy with cemented carbide tool. Surface damages like feed marks, tips, and surface tearing were discussed. The second-order polynomial model was used to describe the surface roughness response. Variance analysis was selected to eliminate the insi

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3

Prasad, Ganesha, Raghavendra Kamath C., and Vijay G.S. "A review on conventional and nonconventional machining of Nickel-based Nimonic superalloy." Manufacturing Review 10 (2023): 10. http://dx.doi.org/10.1051/mfreview/2023009.

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Superalloys have gained prominence in recent years in various sectors, namely, spacecraft, marine, power, defense, vehicular and others, due to their ability to withstand high temperatures of up to 980 °C without deformation. Nimonics are Nickel-based superalloys usually known to be hard-to-machine materials due to their high strength at high temperatures, higher hardness, low thermal conductivity, and tendency to react with tool material. All these factors increase the level of difficulties in the machining of Nimonic superalloys. Numerous studies have examined various facets of machining of

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4

Zahedi, Ali, and J. Akbari. "FEM Analysis of Single Grit Chip Formation in Creep-Feed Grinding of Inconel 718 Superalloy." Advanced Materials Research 325 (August 2011): 128–33. http://dx.doi.org/10.4028/www.scientific.net/amr.325.128.

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Recent advances in materials science have necessitated the development and understanding of manufacturing processes for safe and repeatable utilization. Grinding is shown to be a promising material removal process especially for brittle and hard to cut materials such as superalloys. Grinding has always been associated with analysis and modeling complications regarding its nature which has limited its extension and reliability of use. The first step in analysis of grinding is considering the action of a single abrasive grit on workpiece surface. In this work the action of a single CBN abrasive

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Díaz-Álvarez, José, Antonio Díaz-Álvarez, Henar Miguélez, and José Cantero. "Finishing Turning of Ni Superalloy Haynes 282." Metals 8, no. 10 (2018): 843. http://dx.doi.org/10.3390/met8100843.

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Nickel-based superalloys are widely used in the aeronautical industry, especially in components requiring excellent corrosion resistance, enhanced thermal fatigue properties, and thermal stability. Haynes 282 is a nickel-based superalloy that was developed to improve the low weldability, formability, and creep strength of other γ’-strengthened Ni superalloys. Despite the industrial interest in Haynes 282, there is a lack of research that is focused on this alloy. Moreover, it is difficult to find studies dealing with the machinability of Haynes 282. Although Haynes 282 is considered an alloy w

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Mukhtarov, Shamil, Artem Ganeev, Marsel Nagimov, Ruslan Shakhov, Vener Valitov, and Farid Utyashev. "Manufacturing of Axisymmetric Components out of Superalloys and Hard-to-Deform Steels by Roll Forming." Key Engineering Materials 746 (July 2017): 69–74. http://dx.doi.org/10.4028/www.scientific.net/kem.746.69.

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Heat-resistant alloys are the basic material of gas turbine engine (GTE) design. Fine-grained structure in these alloys can be formed by isothermal forging and then different axisymmetric GTE components as wheels, shafts, rings can be superplastic roll formed. Examples of the superplastic and isothermal deformation use for manufacturing components out of superalloys and steels for critical applications are given. The possibility of roll forming parts as rings with a diameter up to 800 mm and as flange - cone with a diameter up to 600 mm out of superalloys (Inconel 718, EK79, EP741NP), accordin

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7

ALTIN, Abdullah. "Determination of Cutting Tool Performance Characteristics in Machining Nickel Based Super Alloys." International Conference on Applied Engineering and Natural Sciences 1, no. 1 (2023): 416–20. http://dx.doi.org/10.59287/icaens.1031.

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Cutting tool materials often undergo severe mechanical stresses and thermal changes when machining nickel-based superalloys. The stresses and temperatures that arise when machining nickel-based superalloys greatly increase the blunting and wear rate of the cutting tool. As a result, tool life is adversely affected. It is seen from important studies that adhesion and abrasion wear mechanisms are more dominant in the processing of Inconel 718. The work material adheres to the cutting edge, forming a BUE. Depending on the cutting conditions, stable BUE is not always formed and this layer is somet

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8

Kónya, Gábor, and Zsolt F. Kovács. "Effects of Oil Concentration in Flood Cooling on Cutting Force, Tool Wear and Surface Roughness in GTD-111 Nickel-Based Superalloy Slot Milling." Journal of Manufacturing and Materials Processing 8, no. 3 (2024): 119. http://dx.doi.org/10.3390/jmmp8030119.

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Cooling–lubricating processes have a big impact on cutting force, tool wear, and the quality of the machined surface, especially for hard-to-machine superalloys, so the choice of the right cooling–lubricating method is of great importance. Nickel-based superalloys are among the most difficult materials to machine due to their high hot strength, work hardening, and extremely low thermal conductivity. Previous research has shown that flood cooling results in the least tool wear and cutting force among different cooling–lubricating methods. Thus, the effects of the flood oil concentration (3%; 6%

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9

Jean, Ming-Der, Shu-Yi Tu, and Jen-Ting Wang. "Analysis of Hard-Facing Appearance of Specific Powdered Superalloys for PTA-Coating Processes." Journal of Materials Engineering and Performance 14, no. 3 (2005): 307–14. http://dx.doi.org/10.1361/10599490523904.

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10

Yarovytsyn, O. V., M. O. Cherviakov, H. D. Khrushchov, and I. R. Volosatov. "Assessment of the mechanical properties of the high-temperature area in the heat-affected zone during surfacing of a difficult-to-weld nickel-based superalloy." Physicochemical Mechanics of Materials 61, no. 2 (2025): 118–24. https://doi.org/10.15407/pcmm2025.02.118.

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A method for assessing the mechanical properties and deformation capacity of the high-temperature area of the heat-affected zone (HAZ) during fusion welding of the ZhS6-type hard-to-weld polycrystalline nickel-based alloys was developed. The proposed method is based on the use of a miniature plane proportional two-layer specimen, cut from a nickel-based superalloy plate with a single layer of deposited metal on its edge. The gauge section of such a specimen contains longitudinally interfused layers of the base metal and the highly ductile deposited metal of Inconel 625 alloy. Through longitudi

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11

Díaz-Álvarez, Antonio, José Díaz-Álvarez, José Luis Cantero, and Henar Miguélez. "Sustainable High-Speed Finishing Turning of Haynes 282 Using Carbide Tools in Dry Conditions." Metals 9, no. 9 (2019): 989. http://dx.doi.org/10.3390/met9090989.

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Nickel-based superalloys exhibit an exceptional combination of corrosion resistance, enhanced mechanical properties at high temperatures, and thermal stability. The mechanical behavior of nickel-based superalloys depends on the grain size and the precipitation state after aging. Haynes 282 was developed in order to improve the creep behavior, formability, and strain-age cracking of the other commonly used nickel-based superalloys. Nevertheless, taking into account the interest of the industry in the machinability of Haynes 282 because of its great mechanical properties, which is not found in o

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Taheri, Morteza, and Kourosh Shirvani. "Design and Processing of Hard and Self-Lubricating NiCr/hBN-cBN Composite Coatings by Laser Cladding: Investigation of Microstructure, Hardness, and Wear." Photonics 12, no. 3 (2025): 265. https://doi.org/10.3390/photonics12030265.

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Hardness and wear resistance are the requirements of nickel-based superalloys used in gas turbine blades. This study uses laser cladding technology to develop three types of wear-resistant coatings—NiCr-2%hBN, NiCr-12%cBN, and NiCr-2%hBN-12%cBN—on GTD-111 superalloy. The above coatings’ microstructure, microhardness, and tribological behavior were systematically characterized by scanning electron microscope, hardness tester, pin-on-disc wear device, and three-dimensional profiles. The hardness test results showed that the hBN coating has the lowest hardness (692 HV) due to its layered structur

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13

Li, Yuebing, Yanming He, Chuanyang Lu, et al. "Microstructural Evolution and Mechanical Evaluation of a Laser-Induced Composite Coating on a Ni-Based Superalloy during Thermal Exposure." Materials 12, no. 9 (2019): 1439. http://dx.doi.org/10.3390/ma12091439.

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A Ni–17Mo–7Cr-based superalloy was laser surface-modified to improve its tribological properties. Si particles were employed as coating materials. Si melted on the surface of the alloy during the process, triggering the formation of Mo6Ni6C carbides and Ni–Si intermetallics. A defect-free coating obtained was mostly made up of primary Mo6Ni6C and γ-Ni31Si12, as well as a eutectic structure of β1-Ni3Si and α-Ni-based solid solution (α-Ni (s.s)). The volume fraction of hard reinforcements (Mo6Ni6C, γ-Ni31Si12, and β1-Ni3Si) reached up to 85% in the coating. High-temperature microstructural stabi

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14

Venkata Ramana, Mandala, G. Krishna Mohana Rao, E. Nitheesha, and B. V. Raja Ravi Kumar. "Performance Evaluation and Experimental Investigations in Turning of Iron Based A286 Nickel Alloy under Various Machining Conditions." International Journal of Automotive and Mechanical Engineering 22, no. 1 (2025): Press. https://doi.org/10.15282/ijame.22.1.2025.18.0935.

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The advancement of materials in the last few decades has guided the development of many hard-to-machine materials, such as superalloys. These alloys have poor machinability characteristics. This paper examines the machinability performance characteristics of Iron-based A286 Nickel superalloy by varying the turning process parameters using uncoated and physical vapor deposition (PVD) coated inserts. Experiments were performed with an L16 orthogonal array using minimum quantity lubrication (MQL) machining and dry machining environments. The accomplishment of the turning process was evaluated in

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15

Poloczek, Tomasz, Aleksandra Lont, and Jacek Górka. "The Structure and Properties of Laser-Cladded Inconel 625/TiC Composite Coatings." Materials 16, no. 3 (2023): 1265. http://dx.doi.org/10.3390/ma16031265.

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This article presents production results concerning metal matrix composite-coatings made using the laser-cladding technology. The enhancement of the wear resistance of the material surface is the one of the main goals accompanying the manufacturing of composite coatings. Nickel-based superalloys are used in several industries because they are characterized by a number of desirable properties including high tensile and fatigue strength as well as resistance to high-temperature corrosion in aggressive environments. One of the most interesting materials from the group of superalloys is Inconel 62

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16

Zheng, Jia, Chuan Tang, Yuanxi Sun, Mingchi Feng, and Congzhe Wang. "An Enhanced U-Net Approach for Segmentation of Aeroengine Hollow Turbine Blade." Mathematics 10, no. 22 (2022): 4230. http://dx.doi.org/10.3390/math10224230.

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The hollow turbine blade plays an important role in the propulsion of the aeroengine. However, due to its complex hollow structure and nickel-based superalloys material property, only industrial computed tomography (ICT) could realize its nondestructive detection with sufficient intuitiveness. The ICT detection precision mainly depends on the segmentation accuracy of target ICT images. However, because the hollow turbine blade is made of special superalloys and contains many small unique structures such as film cooling holes, exhaust edges, etc., the ICT image quality of the hollow turbine bla

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17

Danzer, Robert, Markus Lengauer, Domagoj Rubeša, and Walter Harrer. "Silicon Nitride Tools for Hot Rolling of High-Alloyed Steel and Superalloy Wires." Key Engineering Materials 409 (March 2009): 43–54. http://dx.doi.org/10.4028/www.scientific.net/kem.409.43.

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For hot rolling wires of high-alloyed steels or superalloys tools are nowadays made of ce¬mented carbides. In service they suffer from roughening of the surfaces and severe wear, which de¬teriorates the surface quality of the wires and restricts the lifetime of the tool. Due to their high hard¬ness and good high-temperature properties, improvements in tool behaviour can be expected by the use of silicon nitride tools. Experiments with several types of rollers were performed in commercial rolling mills. At modest and medium severe loaded positions (e.g. in the case of guidance rolls) silicon ni

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18

Beranoagirre, A., and Luis Norberto López de Lacalle. "Optimizing the Turning of Titanium Aluminide Alloys." Advanced Materials Research 498 (April 2012): 189–94. http://dx.doi.org/10.4028/www.scientific.net/amr.498.189.

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The work here exposed, is framed in the line of development of slight materials with good properties, used to reduction of weight in different components for the aviation and automotion where very high temperatures are the main factor. In these fields, several components must withstand high temperatures maintaining a high resistance. The superalloys of type Gamma TiAl is a attractive alternative to other titanium and nickel-based alloys, due to high relationship resistance/weigh and the resistance to the corrosion. This work presents the results from turning tests on three types of Gamma TiAl

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19

Gadalińska, Elżbieta, Andrzej Michałowski, and Sławomir Czarnewicz. "Determination of Stress Values in the Surface Layer of Inconel 718 Samples Dedicated to Fatigue Tests." Fatigue of Aircraft Structures 2019, no. 11 (2019): 78–86. http://dx.doi.org/10.2478/fas-2019-0008.

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AbstractThis work deals with the problem of X-ray stress determination on the samples dedicated to fatigue tests. A number of research studies point out the fact that the processing of hard, difficult to machine materials like nickel superalloys, reveals more than one trend of residual stress versus working parameters of behaviour (Lavella and Berruti, 2010). Many papers have shown that the residual stresses are dependent on a combination of a number of factors. When the above is taken into account simultaneously with the requirements of the internal General Electric specification for the fati

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20

Memarianpour, Morvarid, Seyed Ali Niknam, Sylvain Turenne, and Marek Balazinski. "Initial tool wear behavior in high-speed turning of Inconel 718." Transactions of the Canadian Society for Mechanical Engineering 44, no. 3 (2020): 395–404. http://dx.doi.org/10.1139/tcsme-2019-0110.

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Three distinctive regions of tool wear, known as initial wear, steady-state wear, and accelerated wear, are well understood. However, the effects of cutting parameters on the initial tool wear mechanism, morphology, and size have received less attention as compared to the other two regions. Knowing that adequate control of initial tool wear may lead to extended tool life, in particular in hard-to-cut metals such as superalloys, this topic has become a source of attention. Amongst superalloys, Inconel 718 is considered as one of the most difficult to cut materials, which has a wide range of ind

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21

Chang, Julius C., and Samuel M. Allen. "Elstic energy changes accompanying gamma-prime rafting in nickel-base superalloys." Journal of Materials Research 6, no. 9 (1991): 1843–55. http://dx.doi.org/10.1557/jmr.1991.1843.

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Eshelby's equivalent inclusion method is applied to the case of a single, inhomogeneous, ellipsoidal precipitate in an infinite matrix to study the morphological changes of the gamma-prime precipitates in nickel-base superalloys due to the influence of lattice constant misfit, elastic inhomogeneity and anisotropy, applied stress, and interfacial energy. The energy-minimizing inclusion shapes depend very sensitively on the degree of elastic inhomogeneity, on the sense and magnitude of the applied stress, and on the sense of the lattice constant misfit. The interfacial energy contribution can do

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22

Anil, Semih Ekrem, Hasan Demirtas, Adnan Kalayci, and Abdulkadir Cebi. "Investigation of the Layer Effects Formed by W-EDM on Electrochemical Grooving of Stellite 21." Machines 11, no. 8 (2023): 823. http://dx.doi.org/10.3390/machines11080823.

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Machining hard-to-cut materials, such as cobalt (Co)-based superalloys, is a common problem in manufacturing industries. Background: wire electrical discharge machining (W-EDM) is one of the widely used cutting processes that causes layer (white layer—WL and heat-affected zone—HAZ) formation, and microcracks on the material’s surface. Purpose: this study investigates the effects of WL and HAZ on the electrochemical grooving (EC grooving) performance of Co-based superalloys. Two different surface types (W-EDMed and VFed) were used in the experiments. Result: the experiments showed that material

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23

Yu, Yingyan, Zhiyuan Qu, Jiansheng Zhang, and Jie Zhou. "Influence of Surfacing Fe-Based Alloy Layers on Wire Arc Additive Manufactured Ni-Based Superalloys Material on Its Microstructure and Wear Properties." Materials 15, no. 17 (2022): 6020. http://dx.doi.org/10.3390/ma15176020.

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Wire arc additively manufactured (WAAM) Ni-based materials have good properties but are costly and hard to cut, leading to difficulties in machining after welding and wasting the materials. To overcome these shortcomings, this work proposes a method of surfacing Fe-based alloy layers on WAAM Ni-based material. The effect of this method on the microstructure and wear properties of WAAM Ni-based materials is discussed. In this work, a Fe-based alloy (JX103) was welded as the last layers of the WAAM Ni-based superalloy (JX201) material. The hardness, microstructure, and wear behavior of the mater

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24

Tuominen, J., M. Hallaji, J. Kiviö, and J. Vihinen. "High-speed laser cladding: new developments for wear and corrosion protection." IOP Conference Series: Materials Science and Engineering 1296, no. 1 (2023): 012037. http://dx.doi.org/10.1088/1757-899x/1296/1/012037.

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Abstract Fusion-bonded and low-diluted overlay welded coatings are frequently very thick (>1mm), which results in high material consumption (kg/m2) and expenses. High-speed laser cladding is a novel process, which can produce thin fusion-bonded and low-diluted coatings with high coverage rates and low heat input. Coating materials utilized in high-speed cladding have varied from soft Ni-based superalloys to harder martensitic stainless steels and base materials from low alloy steels to austenitic stainless steels. The ultimate objective has been to develop crack-free alternatives to environ

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Feng, Jiecai, Junzhe Wang, Hongfei Liu, et al. "A Review of an Investigation of the Ultrafast Laser Processing of Brittle and Hard Materials." Materials 17, no. 15 (2024): 3657. http://dx.doi.org/10.3390/ma17153657.

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Ultrafast laser technology has moved from ultrafast to ultra-strong due to the development of chirped pulse amplification technology. Ultrafast laser technology, such as femtosecond lasers and picosecond lasers, has quickly become a flexible tool for processing brittle and hard materials and complex micro-components, which are widely used in and developed for medical, aerospace, semiconductor applications and so on. However, the mechanisms of the interaction between an ultrafast laser and brittle and hard materials are still unclear. Meanwhile, the ultrafast laser processing of these materials

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Pickard, Andrew C., and David E. Mills. "Modeling of subsurface ceramic inclusions in metallic matrices." Journal of Strain Analysis for Engineering Design 55, no. 5-6 (2020): 134–44. http://dx.doi.org/10.1177/0309324720910935.

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All engineering materials have the potential to contain inhomogeneities that can act as initiators for fatigue cracks during cyclic loading. One class of inhomogeneity that can occur as a result of the processes used to create metallic materials is a ceramic inclusion, typically resulting from the raw material contamination during the melting process. This article examines the predicted behavior of hard ceramic inclusions in a nickel-base superalloy metallic matrix. Compressive residual stresses are created in the inclusion during cool down from a stress-free state at high temperature. The inf

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27

Fedelich, B. "Modelling at the dislocation level the reinforcement of alloys by hard precipitates: The example of Ni-base superalloys." Journal de Physique IV (Proceedings) 105 (March 2003): 131–38. http://dx.doi.org/10.1051/jp4:20030180.

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28

Kwiatkowski, Michał, Krzysztof Zaba, Maciej Nowosielski, Danel Pociecha, Tomasz Tokarski, and Paweł Kita. "Temperature Measurement in the Rotary Forming Process of a Nickel Superalloys (INCONEL) Sheet during Induction Heating." Key Engineering Materials 622-623 (September 2014): 823–30. http://dx.doi.org/10.4028/www.scientific.net/kem.622-623.823.

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The processes of spinning and flow forming of hard metal sheets made from nickel superalloy INCONEL can be realized cold or with heating - e.g. by a induction or laser. When metal sheet is heated it is necessary to measure the temperature field on heated area, because its determines the deformation susceptibility. To control the temperature field pyrometers and infrared cameras are used. Due to strong changes in the surface of a formed material, under temperature influence (oxidation) and the action of the forming rolls, it is necessary to determine the emissivity coefficient values as a funct

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29

Pauzi, Ahmad Afiq, Mariyam Jameelah Ghazali, Wan Fathul Hakim W. Zamri, and Armin Rajabi. "Wear Characteristics of Superalloy and Hardface Coatings in Gas Turbine Applications–A Review." Metals 10, no. 9 (2020): 1171. http://dx.doi.org/10.3390/met10091171.

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In the gas-turbine research field, superalloys are some of the most widely used materials as they offer excellent strength, particularly at extreme temperatures. Vital components such as combustion liners, transition pieces, blades, and vanes, which are often severely affected by wear, have been identified. These critical components are exposed to very high temperatures (ranging from 570 to 1300 °C) in hot-gas-path systems and are generally subjected to heavy repair processes for maintenance works. Major degradation such as abrasive wear and fretting fatigue wear are predominant mechanisms in

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Marczak, Michał, Dorota A. Moszczyńska, and Aleksander P. Wawrzyszcz. "Experimental Investigation of Magnetic Abrasive Finishing for Post-Processing Additive Manufactured Inconel 939 Parts." Applied Sciences 15, no. 15 (2025): 8233. https://doi.org/10.3390/app15158233.

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This study explores the efficacy of magnetic abrasive finishing (MAF) with planetary kinematics for post-processing Inconel 939 components fabricated by laser powder bed fusion (LPBF). Given the critical limitations in surface quality of LPBF-produced parts—especially in hard-to-machine superalloys like Inconel 939—there is a pressing need for advanced, adaptable finishing techniques that can operate effectively on complex geometries. This research focuses on optimizing the process parameters—eccentricity, rotational speed, and machining time—to enhance surface integrity following preliminary

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Cadoni, Ezio, Daniele Forni, Federico Mazzucato, and Anna Valente. "Tensile behaviour of Inconel 718 alloys under extreme conditions of temperature and strain-rate." EPJ Web of Conferences 250 (2021): 05010. http://dx.doi.org/10.1051/epjconf/202125005010.

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Nickel-based superalloys are widely used in critical applications where structural components are subjected to harsh operating conditions such as elevated temperatures and high strain-rate. These alloys are also among the most hard-to-cut materials. For this reason, some critical components with complex geometrical features along with critical dimensions cannot easily manufactured by conventional technologies. A rising disruptive Additive Manufacturing (AM) technique, namely powder-based Laser Metal Deposition (LMD), is able to overcome these limitations in terms of manufacturing costs, tool w

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32

Safie, Syahilia Syahira, Muhamad Nasir Murad, and Tan Chye Lih. "Performance of Castor Oil and Neem Oil as Metal Cutting Fluids in Drilling Inconel 718 Using MQL Technique on Tool Wear and Surface Roughness." Journal of Physics: Conference Series 2129, no. 1 (2021): 012070. http://dx.doi.org/10.1088/1742-6596/2129/1/012070.

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Abstract Inconel 718 is hard to cut material due to its high hardness, high strength at elevated temperatures, low thermal diffusivity and affinity to react with tool materials. The high temperature during machining results in aggressive tool wear and poor hole quality. Therefore, the application of metal cutting fluids (MCF) as a lubricating and cooling agent is very significant in the drilling of nickel-based superalloys such as Inconel 718. The present study embraces these issues by evaluating the performance of non-edible vegetable oils such as castor and neem oil under minimal quantity lu

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33

Blum, Wolfgang. "Role of Boundaries in Control of Deformation Rate and Strength of Crystalline Materials." Materials Science Forum 604-605 (October 2008): 391–401. http://dx.doi.org/10.4028/www.scientific.net/msf.604-605.391.

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Plastic deformation of crystalline materials is not controlled by interaction among free dislocations only, but the interaction of free dislocations with internal boundaries. i) Low-angle boundaries: Modeling of deformation of pure materials with conventional grain size on the basis of structure evolution indicates that low-angle boundaries act as obstacles of free dislocations. The migration of the low-angle boundaries constitutes an essential recovery process determining the deformation resistance in the steady state. ii) High-angle boundaries: Severe plastic deformation transforms low-angle

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Gama, Renann Pereira, and Marcos Valério Ribeiro. "Effects of Cutting Fluid Application in the Performance of the Nimomic 80A Turning." Key Engineering Materials 656-657 (July 2015): 243–50. http://dx.doi.org/10.4028/www.scientific.net/kem.656-657.243.

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The increase of world requirements for improved products joined to growing competition between companies in the global market makes the same seek processes that ensure lower costs allied to high productivity and high quality product. Therefore, the great industrial and technological development has been increased the search for machining processes that promote, for example, high performance as regards the chip removal, less tool wear, failure and reduced impact on the environment. Regarding nickel-based superalloys, they have an extremely important role in the aeronautical and automotive indus

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Wallace Head, W. "A review of: “SUPERALLOYS, SUPERCOMPOSITES AND SUPERCERAMICS”edited by J.K. Tien and T. Caulfield Academic Press Inc. 755 pages, hard cover, 1989." Materials and Manufacturing Processes 5, no. 4 (1990): 663–65. http://dx.doi.org/10.1080/10426919008953284.

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Nakamura, Morihiko. "Fundamental Properties of Intermetallic Compounds." MRS Bulletin 20, no. 8 (1995): 33–39. http://dx.doi.org/10.1557/s0883769400045085.

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More than 25 years have passed since Intermetallic Compounds, edited by Westbrook, was published. Since that time, enormous advances have been made in the understanding and usage of intermetallic compounds. It is known that intermetallic compounds are generally brittle. Thus, alloys that contain intermetallics may also be brittle. However, many intermetallic compounds are known to have extraordinary functions and characteristics that are not observed in ordinary metals and alloys. Thus, they function as magnetic materials, superconductors, semiconductors, hydrogen absorbing alloys, shape memor

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Gadenin, M. M. "Computation and experimental analysis of the resistance of superalloys to low cycle deformations." Industrial laboratory. Diagnostics of materials 88, no. 9 (2022): 61–68. http://dx.doi.org/10.26896/1028-6861-2022-88-9-61-68.

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Diagrams of cyclic elastoplastic deformation in a general case characterize the resistance of a material to a low cycle loading and display a relation between current values of stresses and strains during deformation process. Those diagrams in the mechanics of deformation and fracture are described by rather complicated state equations with a nonlinear dependence on conditions and modes of loading including temperature, deformation rate, cycle form, type of the stress state, absolute size of sections, working medium, type of constructional material, etc. The entity of aforementioned factors af

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Singh, Gurpreet, Vivek Aggarwal, Sehijpal Singh, Rajiv Kumar Garg, and Balkar Singh. "Experimental and Analytical Investigation into Cutting Forces during Turning of EN-31 Steel in Different Machining Conditions." Key Engineering Materials 933 (October 17, 2022): 42–61. http://dx.doi.org/10.4028/p-d72alb.

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Metal cutting is the way of processing the workpiece with tool having sharp cutting edges of different materials generating chips of different shapes and sizes. In present era of industry 4.0, metal machining should not be unrated during processing of hard grades metals and superalloys where large amount of cutting forces are generated. Also, the measurement of cutting forces provides the basic of economical machining and hence accurate evaluation in experimental and analytical manner has great importance. The traditional models of metal cutting have disagreement with experimental results due

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Rinck, Philipp M., Alpcan Gueray, and Michael F. Zaeh. "Modeling of cutting forces in 1-D and 2-D ultrasonic vibration-assisted milling of Ti-6Al-4V." International Journal of Advanced Manufacturing Technology 119, no. 3-4 (2021): 1807–19. http://dx.doi.org/10.1007/s00170-021-08355-x.

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AbstractTo meet the modern demands for lightweight construction and energy efficiency, hard-to-machine materials such as ceramics, superalloys, and fiber-reinforced plastics are being used progressively. These materials can only be machined with great effort using conventional machining processes due to the high cutting forces, poor surface qualities, and the associated tool wear. Vibration-assisted machining has already proven to be an adequate solution in order to achieve extended tool lives, better surface qualities, and reduced cutting forces. This paper presents an analytical force model

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Kihara, Eliane Alves, Henara Lillian Costa, and Demostenes Ferreira Filho. "Effect of the Shielding Gas and Heat Treatment in Inconel 625 Coatings Deposited by GMAW Process." Coatings 14, no. 4 (2024): 396. http://dx.doi.org/10.3390/coatings14040396.

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Friction, wear, and corrosion of engineering components operating in harsh environments can be substantially improved by applying hard, corrosion-resistant coatings to prolong their useful lives. Nickel superalloys are particularly relevant due to their excellent mechanical properties and corrosion resistance at elevated temperatures. Among the various coating techniques, arc welding processes are suitable due to their good deposition rate and reliability. This work aimed to evaluate the effect of the shielding gas and after-deposition heat treatment on the microstructure and mechanical proper

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Palanisamy, Duraiswamy, P. Thejasree, Umapathi Durai, and Natarajan Manikandan. "A Study on the Machinability of Wire Electrical Discharge Machining of Nickel Alloy Using Taguchi Grey Approach." Key Engineering Materials 971 (December 20, 2023): 33–43. http://dx.doi.org/10.4028/p-2zae5p.

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Superalloys, referred to as nickel alloys, have several uses in engineering and are widely used in industries that are as diverse as chemical processing and food processing. The high thermal conductivity and high strength of these materials make them hard to remove material from with traditional processing techniques. The majority of modern techniques for machining harder materials are alternatives to older methods. The present study is focusing on Wire Electrical Discharge Machining (WEDM), a modern machining technique used for the processing of tougher materials. The aspiration of this work

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Nadolny, Krzysztof, Walery Sienicki, and Michał Wojtewicz. "The effect of sulfurization on the grinding wheel cutting ability in the internal cylindrical grinding of nickel superalloys." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 231, no. 1 (2016): 140–54. http://dx.doi.org/10.1177/0954405415572643.

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One possible way of preventing excessive growth of smearings/loads on the grinding wheel active surface is the introduction of compounds such as sulfur, graphite, or wax into the grinding wheel volume which exerts an active influence on adhesion during the process of impregnation. Limiting the formation of smearings/loads on the grinding wheel active surface is of crucial importance to achieve effective grinding of hard-to-cut materials (such as nickel superalloys) which are characterized by considerable ductility and a strong chemical affinity to abrasive grains, among other things. This arti

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Berthod, Patrice, Merzouk Bouaraba, and Junfu Cai. "Influence of the Chromium Content on the Characteristics of the Matrix, the Tantalum Carbides Population, and the Hardness of Cast Co(Cr)-0.4C-6Ta Alloys." Micro 3, no. 1 (2023): 239–55. http://dx.doi.org/10.3390/micro3010017.

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The mechanical and chemical behaviors of cast cobalt-base superalloys are governed by the carbides and by a reactive element, which is often chromium. The content of this later element, which is efficient in resisting hot oxidation and also hot corrosion, may have consequences on the melting temperature, microstructure, and mechanical properties at high temperatures and at room temperature. Seemingly, the effect of chromium content on the microstructure and properties of cast equi-axed Co-Cr-Ta-C superalloys containing TaC as single reinforcing carbide and in high-enough quantities to achieve

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Chen, Kuan-Jen, and Hung-Mao Lin. "Effects of Niobium Carbide Additions on Ni-Based Superalloys: A Study on Microstructures and Cutting-Wear Characteristics through Plasma-Transferred-Arc-Assisted Deposition." Coatings 14, no. 2 (2024): 167. http://dx.doi.org/10.3390/coatings14020167.

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This study applied plasma transferred arc (PTA) welding to fabricate hard cladding layers by using nickel-based superalloy (NCR7) and niobium carbide (NbC) powders as filler material. The resultant composite claddings were coated onto ductile iron and then analyzed to understand the effect of different quantities of NbC on the solidification structures of the cladding layers and on the characteristics of the interface between the cladding layers and the ductile iron. Cutting tests were also conducted to assess the morphology and mechanism of flank wear on PTA NbC/NCR7 composite cladding tools.

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Sequeiros, Elsa W., Anibal Guedes, Ana Maria Pires Pinto, Manuel F. Vieira та Filomena Viana. "Microstructure and Strength of γ-TiAl Alloy/Inconel 718 Brazed Joints". Materials Science Forum 730-732 (листопад 2012): 835–40. http://dx.doi.org/10.4028/www.scientific.net/msf.730-732.835.

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Intermetallics and superalloys brazing development is a current topic owing the extending use of these alloys in industrial applications. In this work a γ-TiAl alloy was joined to Inconel 718 by active metal brazing, using Incusil-ABA as filler. Joining was performed at 730 °C, 830 °C and 930 °C, with a 10 min dwelling time. The interfaces were characterized by Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS) and Electron Backscatter Diffraction (EBSD). For all processing conditions, the reaction between the base materials and the braze alloy produced multilayered

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Uslu, Gonca, Mehmet Erdi Korkmaz, Rajab Hussein Rajab Elkilani, Munish Kumar Gupta, and Govind Vashishtha. "Investigation of Tribological Properties of Inconel 601 under Environmentally Friendly MQL and Nano-Fluid MQL with Pack Boronizing." Lubricants 12, no. 10 (2024): 353. http://dx.doi.org/10.3390/lubricants12100353.

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Friction and high temperatures greatly affect the hardness and processing efficiency of superalloys. Therefore, it is important to provide a coating on their surfaces with a hard layer. In this study, pack boronizing was applied on Inconel 601 to improve its microstructure and tribological properties. In this regard, tribological tests were performed under MQL, nano-MQL1 (MQL + CuO), and nano-MQL2 (MQL + TiO2) environments. The research results showed that the lowest wear depth, friction force, coefficient of friction (CoF), and volume loss values were obtained in pack-boronized Inconel 601 in

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Kartal, Fuat, and Arslan Kaptan. "Comprehensive and essential review of advanced researches abrasive waterjet machining." International Advanced Researches and Engineering Journal 9, no. 1 (2025): 50–69. https://doi.org/10.35860/iarej.1582470.

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Abrasive Waterjet (AWJ) machining is a highly versatile non-conventional manufacturing technology, increasingly adopted across diverse industries due to its capability of processing a wide spectrum of materials, including metals, alloys, ceramics, composites, and polymers. Unlike conventional methods, AWJ utilizes high-pressure water mixed with abrasive particles to remove material by erosion, significantly reducing thermal effects, mechanical distortion, and material degradation. The performance and efficiency of AWJ machining are directly influenced by critical process parameters such as wat

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Ma, Ke, and Jinhai Wang. "Microstructural Characteristics and Mechanical Properties of an Additively Manufactured Nickel-Based Superalloy." Crystals 12, no. 10 (2022): 1358. http://dx.doi.org/10.3390/cryst12101358.

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The nickel-based superalloys processed by additive manufacturing are very promising structural materials in aircraft engines as high-pressure turbine discs. In this work, a nickel-based superalloy with good mechanical performance and few defects was manufactured by optimized selective laser melting (SLM) processing. We then investigated the influences of post heat treatments on its microstructural characteristics and mechanical performance. The results indicated that a fine grain size with uniform grain orientation was presented in the as-printed nickel-based superalloy sample. After heat trea

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Kapłonek, Wojciech, Krzysztof Nadolny, Krzysztof Rokosz, et al. "Internal Cylindrical Grinding Process of INCONEL® Alloy 600 Using Grinding Wheels with Sol–Gel Alumina and a Synthetic Organosilicon Polymer-Based Impregnate." Micromachines 11, no. 2 (2020): 115. http://dx.doi.org/10.3390/mi11020115.

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The development of modern jet engines would not be possible without dynamically developed nickel–chromium-based superalloys, such as INCONEL® The effective abrasive machining of above materials brings with it many problems and challenges, such as intensive clogging of the grinding wheel active surface (GWAS). This extremely unfavorable effect causes a reduction in the cutting ability of the abrasive tool as well as increase to grinding forces and friction in the whole process. The authors of this work demonstrate that introduction of a synthetic organosilicon polymer-based impregnating substan

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Syed, Hasan Sohail, Abba Abdulhamid Abubakar та Abbas Saeed Hakeem. "A Material-by-Design Approach to Develop Ceramic- and Metallic-Particle-Reinforced Ca-α-SiAlON Composites for Improved Thermal and Structural Properties". Nanomaterials 12, № 13 (2022): 2176. http://dx.doi.org/10.3390/nano12132176.

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α-SiAlON is commonly used to machine superalloys owing to its desirable thermal and structural properties. α-SiAlON is among the crystalline forms of SiAlON and has more favorable properties than β-SiAlON. However, it becomes fragile during the machining of hard-to-cut materials due to its low fracture toughness and machinability. Recent research efforts focus on improving the thermal and structural properties of α-SiAlON using suitable dopants, nano-sized precursors, and the addition of metallic/ceramic reinforcement particles. The present study presents a material-by-design approach to desig

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