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Journal articles on the topic 'Aluminides'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Sampath, Santosh, Vignesh Pandian Ravi, and Srivatsan Sundararajan. "An Overview on Synthesis, Processing and Applications of Nickel Aluminides: From Fundamentals to Current Prospects." Crystals 13, no. 3 (2023): 435. http://dx.doi.org/10.3390/cryst13030435.

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Nickel aluminides have desirable properties for use in high-temperature applications. Nickel aluminides have certain desirable qualities, but for almost a decade in the 1990s, those benefits were overshadowed by the challenges of processing and machining at room temperature. Manufacturing improvements, increased knowledge of aluminide microstructure and deformation processes, and developments in micro-alloying have all contributed to the development of nickel aluminides. Key developments in nickel aluminides, such as their microstructure, alloy addition and alloy development, are given and dis

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2

Feldshtein, E., P. Kiełek, T. Kiełek, L. Dyachkova, and A. Letsko. "On Some Mechanical Properties and Wear Behavior of Sintered Bronze Based Composites Reinforced with Some Aluminides Microadditives." International Journal of Applied Mechanics and Engineering 22, no. 2 (2017): 293–302. http://dx.doi.org/10.1515/ijame-2017-0017.

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AbstractIn the paper, the changes in some mechanical properties and wear behavior of CuSn10 sintered bronze and MMCs based on this bronze reinforced with composite ultrafine aluminide powders FeAl/15 % Al2O3, NiAl/15 % Al2O3and Ti-46Al-8Cr are described. It was observed that the presence of aluminides in the MMCs leads to an increase in the hardness, but the flexural strength may increase or decrease depending on the type of aluminide. The presence of aluminides in the MMC reduces the wear rate considerably. It is decreased in the direction of FeAl/15 % Al2O3→ NiAl/15 % Al2O3→ Ti-46Al-8Cr alum

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3

Dutta, Rabi Sankar, Chelakkattu Yusufali, Sanjib Majumdar, et al. "Thermally Grown Oxide Layer on Aluminized Superalloy 690 Substrate and its Stability in Nitrate-Based Environment." Materials Science Forum 710 (January 2012): 733–38. http://dx.doi.org/10.4028/www.scientific.net/msf.710.733.

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Aluminides were formed on Ni-Cr-Fe based superalloy 690 substrates using pack aluminization process at 1273 K in controlled atmosphere. Thermal oxidation of aluminized specimens was carried out at 1273 K for a total period of 4 hours in air. The thermally grown oxide layer was examined using X-ray diffraction (XRD) studies on top surface and scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) analysis along the cross-section of the sample. The oxide layer developed on aluminized superalloy 690 substrate consisted of Al2O3 layer with a thickness of about 2 μm. The oxidi

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4

Ri, Ernst Kh, Khosen Ri, and Mikhail A. Ermakov. "Technology of obtaining REM-containing master alloy for silumins modification." MATEC Web of Conferences 298 (2019): 00057. http://dx.doi.org/10.1051/matecconf/201929800057.

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The technology of producing ligatures containing rear earth metals (REM) for modification of silumins has been developed. The optimum content ratio of yttrium, cerium and lanthanum 2: 1: 0.5 (15-20 wt.% Y, 7-10 wt.% Ce, 3.5-5.0 wt.% La) for the synthesis of REM aluminides has been established. The peculiarities of the REM aluminides synthesis is studied using the methods of optical and electron microscopy and X-ray microanalysis, followed by the identification of the structural components of the Al-REM alloy. The microstructure of the master alloy is proved to consists of: REM aluminides (yttr

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5

Ahmadian, M., Tara Chandra, David Wexler, and Andrzej Calka. "Effect of Boron on the WC Morphology in Sub Micron Tungsten Carbide-Aluminide Composites." Materials Science Forum 561-565 (October 2007): 675–78. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.675.

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The effect of boron on the WC morphology and on the grain size of binders in sub micron WC composites containing Fe60Al40 and Ni3Al binders was investigated using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The composites were prepared under uniaxial hot pressing of milled powder samples at 1500 °C in inert argon atmosphere. Doped aluminides with boron levels ranging from 0 to 0.1 wt% were used as the binders. It was found that the microstructural characteristics of boron doped aluminide WC composites were similar to those of hot pressed WC-Co and commercial

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6

Ri, Kh, E. Kh Ri, M. A. Ermakov, and E. D. Kim. "Features of formation of the Al–Ni–Zr system alloy structure obtained by reducing oxide compounds by aluminothermy using SHS metallurgy." Izvestiya. Non-Ferrous Metallurgy, no. 4 (August 21, 2023): 24–34. http://dx.doi.org/10.17073/0021-3438-2023-4-24-34.

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This work is focused on establishing the regularity of the effect of zirconium (2.21; 3.29; 3.69 and 6.92 wt.% Zr) on structure formation, the nature of distribution of elements and the microhardness of structural components in the Al–Ni–Zr system alloys obtained by aluminothermy using the SHS metallurgy. Regularities of the formation of structural components and their microhardness depending on the content of zirconium in Al–Ni alloys (50 wt.%) have been identified and scientifically substantiated. Structural components were identified by the methods of electromicroscopic studies and X-ray mi

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7

Castellanos, S., and J. Lino Alves. "A Review of Milling of Gamma Titanium Aluminides." U.Porto Journal of Engineering 3, no. 2 (2018): 1–9. http://dx.doi.org/10.24840/2183-6493_003.002_0001.

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Intermetallic titanium aluminide alloys are used in the high technology engineering field with the goal of achieving weight reduction in different components, exposed to corrosive environments and high temperatures in aeronautical and automotive industries. Despite their attractive properties such as low density, high strength, high stiffness and good corrosion, creep and oxidation resistance, the machinability of titanium aluminide alloys is difficult due to its high hardness, chemical reactivity, and low ductility. This article reviews the state of the art regarding the machinability of tita

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8

Smirnov, Igor, Andrii Chornyi, Volodymyr Lysak, Nikolay Dolgov, Ihor Sіеliverstov, and Kostiantyn Parshenko. "Comparison of chemical composition and wear of iron and nickel aluminide coatings applied by plasma spraying." Eastern-European Journal of Enterprise Technologies 4, no. 12 (124) (2023): 47–55. http://dx.doi.org/10.15587/1729-4061.2023.286198.

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Given such properties as wear resistance, corrosion resistance, heat resistance, contact and cyclic strength, iron and nickel aluminides can be used as coatings in friction pairs for various purposes. The object of research is the process of obtaining plasma-sprayed coatings from powders based on iron and nickel aluminides. The task of research is the determination and comparison of the structure, chemical composition, and wear resistance of coatings from powders of iron aluminide and nickel aluminide, obtained by the method of atmospheric plasma spraying. To reduce the oxidation of powders du

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9

Anwer, Zubia, Muhammad Tufail, and Ali Dad Chandio. "Deposition of Aluminide Coatings onto AISI 304L Steel for High Temperature Applications." Materials 15, no. 12 (2022): 4184. http://dx.doi.org/10.3390/ma15124184.

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The nickel aluminides are commonly employed as a bond coat material in thermal barrier coating systems for the components of aeroengines operated at very high temperatures. However, their lifetime is limited due to several factors, such as outward diffusion of substrate elements, surface roughness at high temperatures, morphological changes of the oxide layer, etc. For this reason, inter-diffusion migrations were studied in the presence and absence of nickel coating. In addition, a hot corrosion study was also carried out. Thus, on one set of substrates, nickel electrodeposition was carried ou

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10

Awotunde, Mary Ajimegoh, Olusoji Oluremi Ayodele, Adewale Oladapo Adegbenjo, Moses Okoro, Mxolisi Brendon Shongwe, and Peter Apata Olubambi. "Influence of Multi-Walled Carbon Nanotube Addition on the Hardness of NiAl-CNT and NiAl₃-CNT Composites." Key Engineering Materials 821 (September 2019): 54–58. http://dx.doi.org/10.4028/www.scientific.net/kem.821.54.

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Nickel aluminides have shown great potential as high temperature structural materials. In this study, two classes of nickel aluminide were reinforced with 0.5wt% MWCNTs. Starting powders of nickel, aluminium and MWCNTs were ball milled together using a two stage milling regime and consolidated by spark plasma sintering. The effect of MWCNT reinforcement on the hardness of two classes of nickel aluminide was investigated. Microhardness values revealed a lack of dependence on densification for the NiAl3 composites. The microhardness values of NiAl-CNT reduced with MWCNT addition whereas microhar

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11

Alexandrescu, Elvira, Alexandra Banu, Mihai Trifănescu, and Alexandru Paraschiv. "Gamma Titanium Aluminides Behavior at High Temperature Static Short-Term Stress." Applied Mechanics and Materials 657 (October 2014): 407–11. http://dx.doi.org/10.4028/www.scientific.net/amm.657.407.

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Today conventional titanium-based alloys represent one third of the weight of modern aircraft engines and, are the second most used engine material following Ni-based superalloys. [1] Titanium aluminide alloys based on intermetallic phases γ (TiAl) and α2 (Ti3Al) and the most recent – orthorhombic titanium aluminide, are widely recognized as having the potential to meet the design requirements for high temperature applications. The outstanding thermo-physical and mechanical properties of these materials rely mainly on the strongly ordered nature and the directional bonding of the compounds. Th

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12

McMinn, A., R. Viswanathan, and C. L. Knauf. "Field Evaluation of Gas Turbine Protective Coatings." Journal of Engineering for Gas Turbines and Power 110, no. 1 (1988): 142–49. http://dx.doi.org/10.1115/1.3240077.

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The hot corrosion resistance of several protective coatings that had been applied to MAR-M-509 nozzle guide vanes and exposed in a utility gas turbine has been evaluated. The coatings included basic aluminide, rhodium-aluminide, platinum-rhodium-aluminide, and palladium-aluminide diffusion coatings, and cobalt-chromium-aluminum-yttrium (CoCrAlY) and ceramic overlay coatings. A combination of metallographic examination of vane cross sections and energy dispersive X-ray analysis (EDS) was employed in the evaluation. The results showed that none of the coatings was totally resistant to corrosive

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13

Misra, Ajay K. "Thermodynamic analysis of chemical compatibility of ceramic reinforcement materials with niobium aluminides." Journal of Materials Research 5, no. 7 (1990): 1561–66. http://dx.doi.org/10.1557/jmr.1990.1561.

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Niobium aluminide-based intermetallic matrix composites are currently being considered as potential high-temperature structural materials. One of the key factors in the selection of a reinforcement material is its chemical stability in the matrix. In this study, chemical interactions between two niobium aluminides, Nb3Al and Nb2Al, and several potential ceramic reinforcement materials, which include carbides, borides, nitrides, and oxides, were analyzed from thermodynamic considerations. Several thermodynamically stable reinforcement materials have been identified for these two matrices.

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14

Kalyniuk, M. M., Ya P. Gritskiv, and L. M. Kahitanchuk. "Eloboration of Methods for Determination on Content of the Oxygen, Nitrogen, Hydrogen Admixtures in Titanium Aluminides." Metrology and instruments, no. 2 (May 21, 2020): 61–67. http://dx.doi.org/10.33955/2307-2180(2)2020.61-67.

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Titanium intermetalides (TiAl and Ti3 Al) and alloys on theirs bases applies in air — and spacetechnology and automobile industry. Physical and mechanical properties there alloys is better, then at classical Ti — or Ni — alloys, that are utilized in aeroplanes and rocets. Alloys, based on TiAl and Ti3Al, are made with utilization vacuum — arc, plasma — arc, induction- garnisage, magnetoperating electroslag melting, electron — beam melting with intermediate capacity, electroslag melting in inert atmosphere under «active» fluxes with metallic calcium, induction melting in muchsection

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15

Cho, Gue Serb, Kang Rae Lee, Kyeong Hwan Choe, Kyong Whoan Lee, and Akira Ikenaga. "In-Situ Joining of Combustion Synthesized Ni-Al Alloys with Al Casting Alloy." Materials Science Forum 510-511 (March 2006): 178–81. http://dx.doi.org/10.4028/www.scientific.net/msf.510-511.178.

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We focused on the surface reinforcement of Al casting alloys with Ni-Al intermetallic compounds by in-situ combustion reaction to improve the surface properties of Al casting components. Microstructure and phase formation behavior of Ni-Al based intermetallic compounds synthesized by combustion reaction were investigated in terms of thermal and phase analysis using scanning electron microscope(SEM) equipped with energy dispersive x-ray spectrometer (EDS) and x-ray diffractometer(XRD) in Ni-Al intermetallic compounds. Three kinds of nickel aluminides, NiAl3, NiAl and Ni3Al, were synthesized by

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16

Agarwala, Vijaya, and Joanna Karwan-Baczewska. "Thermo Mechanical Treatment of Nickel and Titanium Aluminides." Defect and Diffusion Forum 237-240 (April 2005): 653–58. http://dx.doi.org/10.4028/www.scientific.net/ddf.237-240.653.

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Polycrystalline Ni3Al and TiAl are attractive materials for high temperature structural applications due to their stability in oxidizing and sulphidizing environment upto700 0 C. They possess significantly higher specific stiffness and similar specific strength as that of super alloys. Hence, these materials can replace super alloys for high temperature applications (~900°C). TiAl has lesser density and can be used for reducing component weight up to 50% and suitable for aerospace and automobile (high performance vehicles) sectors. The major difficulty for putting Ni3Al for engineering applica

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17

Indacochea, J. Ernesto, Ira Bloom, Michael Krumpelt, and Thomas G. Benjamin. "A comparison of two aluminizing methods for corrosion protection in the wet seal of molten carbonate fuel cells." Journal of Materials Research 13, no. 7 (1998): 1834–39. http://dx.doi.org/10.1557/jmr.1998.0260.

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The corrosion behavior of aluminized Type 310S stainless steel (SS) in the wet seal of molten carbonate fuel cells was investigated. Coupons of Type 310S SS were aluminized by two different aluminizing methods: thermal spray and slurry-coating. In both types of samples Fe and Cr diffused readily into the Al layer at 650 °C. At first this interdiffusion is limited to the interfacial area. With time, Fe and Cr aluminides precipitate in the Al layer. The slurry-coated layer contains a higher concentration of FeAl and Fe3Al than does the thermal spray layer. Consequently, the slurry-coated layer a

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18

Lekatou, Angeliki G., Maria Mpalanou, Konstantinos Lentzaris, Alexander E. Karantzalis, and Nikolaos Melanitis. "Microstructure and surface degradation of Al reinforced by AlxW intermetallic compounds via different fabrication routes." MATEC Web of Conferences 188 (2018): 03001. http://dx.doi.org/10.1051/matecconf/201818803001.

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In the present effort, Al-AlxW composites have been prepared by vacuum arc melting (VAM), conventional casting (CAST) and free sintering (PM) with the objective to determine an effective fabrication route in terms of low cost, ease of manufacture and property boosting. The produced Aluminium Matrix Composites (AMCs) contain several types of in-situ aluminides. Their morphology, stoichiometry and distribution strongly depend on the fabrication route. The particulate aluminide reinforcements have a beneficial effect on the wear response of the monolithic matrix. VAM-AMCs show the highest resista

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19

Popova, Elvira, Pavel Kotenkov, Ivan Gilev, Stepan Pryanichnikov, and Alexey Shubin. "Effect of Copper on the Formation of L12 Intermetallic Phases in Al–Cu–X (X = Ti, Zr, Hf) Alloys." Metals 12, no. 12 (2022): 2067. http://dx.doi.org/10.3390/met12122067.

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Transition metal trialuminides of the Al3X type of groups 4 and 5 of the periodic system have reduced density, high melting points, and corrosion resistance. Aluminides with a cubic lattice of the Al3Sc type can be used as a nucleating phase for aluminum alloys. However, low plasticity and a tetragonal lattice limit their application. In this work, we stabilized the metastable cubic lattice of Al3X-type aluminides by replacing aluminum with copper. The conditions for the formation of L12 metastable aluminides in the Al‒Cu‒TM (TM: Ti, Zr, Hf) alloys were studied using a wide range of copper con

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20

Watson, R. E., and M. Weinert. "Transition-metal aluminide formation: Ti, V, Fe, and Ni aluminides." Physical Review B 58, no. 10 (1998): 5981–88. http://dx.doi.org/10.1103/physrevb.58.5981.

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21

Ismail, R., and I. I. Yaacob. "The formation of aluminides in intermetallic nickel aluminide-based nanocomposites." Journal of Alloys and Compounds 392, no. 1-2 (2005): 214–19. http://dx.doi.org/10.1016/j.jallcom.2004.09.032.

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22

BOGDANOV, A. I., V. P. KULEVICH, V. G. SHMORGUN, M. A. RAZUVAEV, and I. A. SOKOLENKO. "INVESTIGATION OF THE POST-THERMAL TREATMENT EFFECT ON THE STRUCTURE OF THE ALITIZED LAYER ON VT1-0 TITANIUM." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 10 (293) (October 2024): 10–14. http://dx.doi.org/10.35211/1990-5297-2024-10-293-10-14.

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The study results of the post-heat treatment effect on the structure of the aluminized layer on VT1-0 titanium are presented. It is shown that the coating after heat treatment at 700 and 850 °C for 20 h consists of two layers. In the outer layer, rounded TiAl3 particles are separated by aluminum oxide Al2O3. A continuous diffusion zone of ~10 μm thickness is formed at the boundary with titanium, consisting of several layers representing TiAl2, TiAl and Ti3Al aluminides.

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23

Palm, Martin, Frank Stein, and Gerhard Dehm. "Iron Aluminides." Annual Review of Materials Research 49, no. 1 (2019): 297–326. http://dx.doi.org/10.1146/annurev-matsci-070218-125911.

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The iron aluminides discussed here are Fe–Al-based alloys, in which the matrix consists of the disordered bcc (Fe,Al) solid solution (A2) or the ordered intermetallic phases FeAl (B2) and Fe3Al (D03). These alloys possess outstanding corrosion resistance and high wear resistance and are lightweight materials relative to steels and nickel-based superalloys. These materials are evoking new interest for industrial applications because they are an economic alternative to other materials, and substantial progress in strengthening these alloys at high temperatures has recently been achieved by apply

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24

Jehle, Michael, Harald Scherer, Marco Wendorff, and Caroline Röhr. "Barium aluminides." Journal of Solid State Chemistry 182, no. 5 (2009): 1129–35. http://dx.doi.org/10.1016/j.jssc.2009.02.005.

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25

Hanada, Shuji. "Niobium aluminides." Current Opinion in Solid State and Materials Science 2, no. 3 (1997): 279–83. http://dx.doi.org/10.1016/s1359-0286(97)80115-5.

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26

Weihnacht, Volker, W. D. Fan, K. Jagannadham, J. Narayan, and C.-T. Liu. "A new design of tungsten carbide tools with diamond coatings." Journal of Materials Research 11, no. 9 (1996): 2220–30. http://dx.doi.org/10.1557/jmr.1996.0282.

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We have designed tungsten carbide tools with a new binder, which makes them suitable for advanced diamond tool coatings. The new tool substrates, made of tungsten carbide and nickel aluminide as binder phase, are produced by sintering and hot isostatic pressing, and also by combustion synthesis. The high temperature strength of nickel aluminide is key to superior tool performance at elevated temperatures. More importantly, nickel aluminides reduce the formation of graphite and promote diamond growth during chemical vapor deposition. Diamond films are deposited on the new tool substrates to inv

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27

Ahmadian, M., David Wexler, Andrzej Calka, and Tara Chandra. "The Effect of Boron on the Hardness and Fracture Toughness of WC-FeAl-B and WC-Ni₃Al-B Composites." Materials Science Forum 539-543 (March 2007): 962–67. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.962.

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The hardness and indentation fracture toughness of sub micron WC composites based on aluminide and cobalt binders were investigated. Doped Fe60Al40 and Ni3Al alloys with boron levels ranging from 0 to 0.1 wt%, were used as the aluminide binders. The composite materials were processed by uniaxial hot pressing of milled powder samples at 1500 °C under argon atmosphere. The hardness of WC-40vol%(FeAl-B) was found to be higher than that of WC-40vol%(Ni3Al-B), and it approached to the hardness level of the commercial grade of WC-10wt%Co (H10F). The fracture toughness of both WC-40vol%(FeAl-B) and W

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28

Claussen, N., D. E. Garcia, and R. Janssen. "Reaction sintering of alumina-aluminide alloys (3A)." Journal of Materials Research 11, no. 11 (1996): 2884–88. http://dx.doi.org/10.1557/jmr.1996.0364.

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A novel pressureless reaction sintering process is presented for the fabrication of Al2O3-aluminide alloys (3A). Compacts of intensively milled metal oxide-aluminum mixtures are heat-treated in vacuum or inert atmosphere such that the exothermic reactions take place in a controlled manner essentially at temperatures below the melting point of Al. Dense, homogeneous microstructures were obtained with a variety of Al2O3-matrix systems with interpenetrating networks of aluminides of Ti, Fe, Nb, Mo, Zr, Ni, etc. By adding modifiers in the form of oxides or metals, volume and phase composition as w

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29

Dolmatov, Oleg Yu, Daniil K. Kolyadko, Nikita O. Pimenov, and Stanislav S. Chursin. "Production of Zirconium Aluminides by Self-Propagating High-Temperature Synthesis." Key Engineering Materials 769 (April 2018): 66–71. http://dx.doi.org/10.4028/www.scientific.net/kem.769.66.

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This work presents the possibility of carrying out the SH-synthesis of materials based on intermetallic zirconium-aluminium compounds. This material can be used as the matrix material of dispersion nuclear fuel. As the result of experiments on the synthesis of zirconium aluminide by the SHS-method, the technological features and basic characteristics of physical and chemical processes have been identified. During the synthesis, the temperature distributions along the volume of samples and the impact of synthesis conditions on the phase composition of finished product were analyzed. Also, the o

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Moszner, Peng, Suutala, Jasnau, Damani, and Palm. "Application of Iron Aluminides in the Combustion Chamber of Large Bore 2-Stroke Marine Engines." Metals 9, no. 8 (2019): 847. http://dx.doi.org/10.3390/met9080847.

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Iron aluminides possess a unique combination of properties such as attractive corrosion resistance in hot gas and wet chemical environments, a favorable strength to weight ratio, low costs of alloying elements, and they can be processed by conventional methods. For the current study, a promising iron aluminide (Fe-Al-Mo-Ti-B) was employed, which shows the potential to replace costly heat resistant steels or expensive Ni-based alloys for components in large bore two-stroke marine engines. The prechamber, an integral part of the combustion system of dual fuel two-stroke marine engines, which mus

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31

Adeeva, L. I., A. Yu Tunik, V. M. Korzhyk, D. V. Strohonov, V. A. Kostin, and O. V. Konoreva. "Peculiarities of the microstructure and properties of iron aluminide powders obtained by the method of plasma-arc spheroidization." Physicochemical Mechanics of Materials 60, no. 4 (2024): 31–41. https://doi.org/10.15407/pcmm2024.04.031.

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Iron aluminide powders obtained by the method of plasma-arc spraying of a flux-cored conductive wire with a steel shell and an aluminium filler were investigated. The experiments were carried out in an argon environment on the “PLAZAR-50-PL-W” installation. It was established that at all operation modes of the plasma torch, the sputtered particles are mostly spherical in shape. The number of particles of non-spherical shape is 7–12% in powders of the –315+200 mm fraction and in smaller fractions it is equal to 4–5%. The main phases of the obtained materials are Fe3Al and FeAl iron aluminides

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32

Whittaker, D. "Joining titanium aluminides." Materials & Design 12, no. 2 (1991): 101–2. http://dx.doi.org/10.1016/0261-3069(91)90113-i.

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Kim, Young-Won. "Gamma titanium aluminides." JOM 47, no. 7 (1995): 38. http://dx.doi.org/10.1007/bf03221228.

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34

Grabke, Hans Jürgen. "Oxidation of Aluminides." Materials Science Forum 251-254 (October 1997): 149–62. http://dx.doi.org/10.4028/www.scientific.net/msf.251-254.149.

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35

Suryanarayana, C., and F. H. Froes. "Nanostructured titanium aluminides." Materials Science and Engineering: A 179-180 (May 1994): 108–11. http://dx.doi.org/10.1016/0921-5093(94)90174-0.

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36

Sizova, Irina, Alexander Sviridov, Martin Günther, and Markus Bambach. "Finite Element Modelling of Titanium Aluminides." Computer Methods in Material Science 17, no. 1 (2017): 51–58. http://dx.doi.org/10.7494/cmms.2017.1.0575.

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Hot forging is an important process for shaping and property control of lightweight titanium aluminide parts. Dynamic recrystallization and phase transformations play an essential role for the resulting grain size and accordingly the mechanical properties. Due to the fact that titanium aluminides require forging under isothermal conditions, reliable process modeling is needed to predict the microstructure evolution, to optimize the process time and to avoid excessive die loads. In the present study an isothermal forging process of a compressor blade made of TNB-V4 (Ti–44.5Al–6.25Nb–0.8Mo–0.1B,

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37

MIZUUCHI, KIYOSHI, MASAMI SUGIOKA, MASAO ITAMI, et al. "HIGH SPEED PROCESSING OF NI-ALUMINIDES-REINFORCED NI-MATRIX COMPOSITES BY PULSED-CURRENT HOT PRESSING (PCHP)." International Journal of Modern Physics B 22, no. 09n11 (2008): 1672–79. http://dx.doi.org/10.1142/s0217979208047249.

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Nickel-aluminides-reinforced nickel-matrix composites were fabricated from 0.05mm-thick nickel foils and 0.012mm-thick aluminum foils, in a process using a pulsed-current hot pressing (PCHP) equipment, and the effect of reaction temperature on mechanical properties of the composites was investigated. The composites were of laminated structure and composed of Ni and reacted layers containing Ni -aluminides. The chemical composition of the reacted layers was dependent on reaction temperature in the temperature range employed. Tensile testing at room temperature revealed that the reaction tempera

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38

Švec, Martin. "The Influence of Microstructure, Heat-Treatment and Type of Crystal Lattice of Iron Aluminides on Coefficient of Thermal Expansion." Defect and Diffusion Forum 368 (July 2016): 41–44. http://dx.doi.org/10.4028/www.scientific.net/ddf.368.41.

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The iron aluminides seem to be very perspective materials for high temperature structural application. They have many advantages, but unfortunately also some negative properties – e.g. sharp drop in strength above 600°C or limited ductility at room temperature. These disadvantages can be reduced by alloying of binary alloy by other elements.Present work deals with a study of coefficient of thermal expansion (CTE). It was investigated the influence of microstructure and heat-treatment on the values of CTE. Secondary, it was studied the possibilities, how to determine phase transition temperatur

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Morris, D. G., and M. A. Muñoz-Morris. "High temperature mechanical properties of iron aluminides." Revista de Metalurgia 37, no. 2 (2001): 230–39. http://dx.doi.org/10.3989/revmetalm.2001.v37.i2.471.

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TIAN, XIAO-FENG, WEI-KE ZHANG, and YU QI. "ANALYSIS OF VALENCE ELECTRON STRUCTURE ONFe3AlCxPRECIPITATED FROM C-ALLOYED IRON ALUMINIDES." Surface Review and Letters 20, no. 01 (2013): 1350005. http://dx.doi.org/10.1142/s0218625x13500054.

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Carbides of Fe3AlCxprecipitated from iron aluminides can strengthen the matrix; the empirical electron theory (EET) was applied to analyze the attribute of carbides in the paper, giving theoretical explanation on the matrix and precipitation. Valence electron structure (VES) of Fe3AlCxwas studied in detail, comparison with the iron aluminides matrix, the hard and brittle phase of Fe3AlCxcan be interpreted form the viewpoint of valence electron structure.

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McKamey, C. G., J. H. DeVan, P. F. Tortorelli, and V. K. Sikka. "A review of recent developments in Fe3Al-based alloys." Journal of Materials Research 6, no. 8 (1991): 1779–805. http://dx.doi.org/10.1557/jmr.1991.1779.

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Fe3Al-based iron aluminides have been of interest for many years because of their excellent oxidation and sulfidation resistance. However, limited room temperature ductility (<5%) and a sharp drop in strength above 600 °C have limited their consideration for use as structural materials. Recent improvements in tensile properties, especially improvements in ductility produced through control of composition and microstructure, and advances in the understanding of environmental embrittlement in intermetallics, including iron aluminides, have resulted in renewed interest in this system for struc

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42

Slavinskaya, N. A., H. Ri, E. H. Ri, and A. S. Zhivetev. "Effects of quenching temperature on the structure, segregation, and properties of the AM4.5Kd + 0.2 wt.% La alloy after artificial aging." Izvestiya. Non-Ferrous Metallurgy, no. 1 (March 28, 2024): 42–54. http://dx.doi.org/10.17073/0021-3438-2024-1-42-54.

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The identification of structural components in the AM4.5Kd + 0.2 wt.% La alloy, subjected to quenching at different temperatures (535–605 °C) and artificial aging at 155 °C for 4 h, was conducted through electron microscopy and XRD. An increase in the quenching temperature from 535 to 605 °C promotes the enlargement of structural components, including the α-solid solution, various aluminides, and eutectics. We observed that the base metal is not homogeneous in its chemical composition, consisting of two types of solid solutions: α1 and α2. The Cu and Mn solubility in the α2-solid solution is h

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Imayev, R. M., and V. M. Imayev. "Superplasticity of titanium aluminides." Letters on Materials 5, no. 3 (2015): 253–57. http://dx.doi.org/10.22226/2410-3535-2015-3-253-257.

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Skrotzki, Werner, K. Kegler, R. Tamm, and C. G. Oertel. "Recrystallization of Iron Aluminides." Materials Science Forum 467-470 (October 2004): 525–30. http://dx.doi.org/10.4028/www.scientific.net/msf.467-470.525.

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Cast iron aluminides of three compositions were strongly deformed by hot extrusion and subsequently annealed. The texture development and kinetics of recrystallization were determined by local and global texture measurements. The deformation texture of Fe-10Al (A2 structure) is a <110>-fibre, Fe-35Al and Fe-50Al (B2 structure) show a <100>-<110> double fibre texture with <110> dominating Fe-35Al. The texture change with composition is due to a change in slip system. The deformed samples are partially dynamically recrystallized. The recrystallization components are align

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Balasubramaniam, R. "Hydrogen in iron aluminides." Journal of Alloys and Compounds 330-332 (January 2002): 506–10. http://dx.doi.org/10.1016/s0925-8388(01)01630-9.

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Köhler, Jens, Analía Moral, and Berend Denkena. "Grinding of Iron-aluminides." Procedia CIRP 9 (2013): 2–7. http://dx.doi.org/10.1016/j.procir.2013.06.158.

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Sundar, R. S., R. G. Baligidad, Y. V. R. K. Prasad, and D. H. Sastry. "Processing of iron aluminides." Materials Science and Engineering: A 258, no. 1-2 (1998): 219–28. http://dx.doi.org/10.1016/s0921-5093(98)00937-x.

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Shibata, Tomoki, and Noboru Demukai. "Deoxidation of Titanium Aluminides." DENKI-SEIKO[ELECTRIC FURNACE STEEL] 64, no. 1 (1993): 32–39. http://dx.doi.org/10.4262/denkiseiko.64.32.

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Oikawa, Hiroshi. "Creep in titanium aluminides." Materials Science and Engineering: A 153, no. 1-2 (1992): 427–32. http://dx.doi.org/10.1016/0921-5093(92)90232-p.

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Ramirez, Bruna N., and Cláudio G. Schön. "Casting of Iron Aluminides." Journal of Phase Equilibria and Diffusion 38, no. 3 (2017): 288–97. http://dx.doi.org/10.1007/s11669-017-0539-6.

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