Academic literature on the topic 'Vicker Hardness'

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Journal articles on the topic "Vicker Hardness"

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Showket, Hussain Dar, and Arashdeep Singh Er. "Microhardness of Silicon Nitride Ceramic and Its Composites." International Journal of Trend in Scientific Research and Development 4, no. 1 (2019): 660–64. https://doi.org/10.5281/zenodo.3606152.

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Micro hardness research studies on various non oxide ceramics will be carried out. These ceramics include silicon nitride and the composites of silicon nitride. Micro hardness measurement of these ceramics i.e. vicker will be carried out using diamond indenters. Various influences of load and time of indentation on hardness values of these ceramics will be carried out in detail. Fracture toughness of these ceramics was also studied using vicker indentation. The vicker hardness of these ceramics decreases with increasing load, similar influence was observed by increasing time of indentation. Sh
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Zhou, L., Yong Ze Guo, Z. R. Liao, X. R. Liang, and G. Q. Pan. "Calculation of Indentation Hardness Based on Indentation Energy." Advanced Materials Research 188 (March 2011): 356–59. http://dx.doi.org/10.4028/www.scientific.net/amr.188.356.

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Comparing advantages and disadvantages of Oliver-Pharr method, microhardness method and indentation energy method, this article propses the improvement of indentation energy method. The improvement of indentation energy method mainly takes the calculation of energy and pile-up and sink-in phenomenon into account. Using Abaqus to simulate the indentation of aluminum with Vicker indenter, process and analyse data from simulation . By comparing different methods of hardness calculation , analyse the effect of improvement of hardness calculation.
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Math, Praveen, and B. S. Praveen Kumar. "A Study on Optimization of CO<sub>2</sub> Welding Process Parameters on Structural Steel by Using Taguchi Method." Key Engineering Materials 937 (December 22, 2022): 3–11. http://dx.doi.org/10.4028/p-nu31ai.

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The goal of this study is to improve several welding parameters that affect the mechanical properties of mild steel, including YS, UTS, toughness, and Vicker hardness (VHN). The welding parameters were optimized using the Taguchi technique, and fracture mode characterization was investigated. There have been numerous experiments done. Applying for it was the L9 orthogonal array (3xx3). To find out how different welding factors, including wire feed speed, welding current, and gas flow rate, affect mechanical qualities, statistical methods of signal to noise ratio (SNR) and analysis of variance
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Phuong, Doan Dinh, Tran Bao Trung, Le Danh Chung, and Tran Ba Hung. "EFFECT OF BINDER COMPOSITION AND SINTERING TEMPERATURE ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF WC-7(Ni,Fe) HARD ALLOYS PREPARED BY FREE CAPSULE HIP TECHNIQUE." Acta Metallurgica Slovaca 25, no. 2 (2019): 123. http://dx.doi.org/10.12776/ams.v25i2.1270.

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&lt;p class="AMSmaintext"&gt;In this research, WC-7(Ni,Fe) hard alloys were prepared by ball milling, cold compaction and finally consolidated by hot isostatic pressing. The effect of binder composition and sintering temperature were investigated in term of the microstructure, density and mechanical properties of sintered samples. Density of hard alloys was measured by the Archimedes' principle while the microstructure was observed using a scanning electron microscope. The Vickers hardness was investigated at load of 30KG and the fracture toughness was calculated based on the Palmqvist crack m
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Ramadhani, Dina Kharina, Hidayati Hidayati, and Didin Kustantiningtyastuti. "Pengaruh Perendaman Gigi Dengan Teh Hijau (Camellia Sinensis) Terhadap Kekerasan Gigi Setelah Direndam Dengan Minuman Bersoda." Andalas Dental Journal 9, no. 2 (2021): 67–71. http://dx.doi.org/10.25077/adj.v9i2.176.

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Tooth erosion is the loss of important dental structure minerals due to continuous acid exposure, due to the low pH and high calories found in soft drinks. Loss of mineral elements in tooth enamel reversible or can still return to normal through the process of remineralization. Adding fluorine, calcium, phosphorus from green tea can increase resistance from remineralization of email toward acids, in other words it can inhibit acid formation by binding to enamel minerals and forming fluorapatite compounds. Objective: To determine the increase of tooth hardness enamel after being soaked with gre
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Chansimuang, Nuansiri, and Tosawat Seetawan. "Preparation of Thin Cu Electrode on Al2O3 + Clay Substrate by Pulsed DC Magnetron Sputtering." Advanced Materials Research 770 (September 2013): 335–38. http://dx.doi.org/10.4028/www.scientific.net/amr.770.335.

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Aluminum oxide (Al2O3) and Copper (Cu) are popular into insulator and electrode for thermoelectric module. The Al2O3 + clay substrate was prepared by solid state reaction and the thin Cu electrode prepared by pulsed DC magnetron sputtering. Crystal structure and microstructure of the substrate were measured by using the X-ray diffraction and scanning electron microscopy techniques. The Vicker hardness and density were measured by Micro Hardness tester and Archimedes method, respectively. The X-ray diffraction patterns of the substrate were obtained mix phases such as Al2O3, clay and Cu phases.
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Perez, Carlos Ariel Samudio, and Cezar Augusto Garbin. "Caracterização metalúrgica de ligas de Ni-Cr para metalocerimica." Revista da Faculdade de Odontologia de Porto Alegre 40, no. 1 (2021): 57–59. http://dx.doi.org/10.22456/2177-0018.111055.

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Alternative Ni-Cr alloys applied in dentistry of two commercial brands for ceramometal restoration were evaluated. The alloys were analyzed in the commercial and after casting conditions using experimental techniques of metallography, X-ray diffraction, superficial hardness and density. The metalografics and X-ray diffraction analysis showed that, the alloys microstructure is marked with the presence of a solid solution having an ordered face- centred cubic structure, Ni-rich austenitic (y phase) matrix, and with fine precipitates particles of secondary phases. The Vicker hardness tests showed
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Wang, Qiu Ying, Zhi Bo Hu, Ming Yue Zhang, Yi Lin Zhou, Jin Bo Liu, and Hui Chen. "Research on Repair Welding Processes of a Bainite Steel Frog." Advanced Materials Research 652-654 (January 2013): 2274–78. http://dx.doi.org/10.4028/www.scientific.net/amr.652-654.2274.

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This paper introduced a kind of bainite steel used for frog, and studied its repair welding processes. In this paper, four different welding processes were designed. Optical microscopy, scanning electron microscopy, vicker hardness tester, wear tester, impact tester, and high temperature abrasion tester were used to test microstructures, hardness, wear weight loss, impact absorbing energy and wear morphology. The conclusion was that when the current was 120A and the preheat temperature was 250°C the hardness of surfacing metal was the highest, the wear weight loss was least and the impact abso
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Chotěborský, R. "Effect of heat treatment on the microstructure, hardness and abrasive wear resistance of high chromium hardfacing." Research in Agricultural Engineering 59, No. 1 (2013): 23–28. http://dx.doi.org/10.17221/62/2011-rae.

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The effect of destabilization heat treatment on the microstructure, hardness, fracture toughness and abrasive wear resistance of high chromium hardfacing was investigated. The results from the study shows that the hardness, frac&amp;shy;ture toughness and abrasive wear resistance are influenced by temperature of destabilization heat treatment and air and furnace cooling conditions, respectively. Destabilization treatment of materials by furnace cooling caused higher secondary carbides in the dendritic austenite whilst by air cooling it showed smaller particles of secondary carbide. Also, it wa
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Nugroho, Raditya, Putri Nila Kharisma, and Roedy Budirahardjo. "Pengaruh Aplikasi Gliserin pada Kekerasan Resin Komposit Nanofiller dengan Perendaman Cuka Apel." Pustaka Kesehatan 8, no. 2 (2020): 87. http://dx.doi.org/10.19184/pk.v8i2.11322.

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Composite resin is a type of filling material that is often used because it has good bonds with dentine and enamel and has a high aesthetic value. Nanofiller composite resin has high hardness, good polishing, color accuracy, and good translucency. The hardness of composite resins can change caused by low pH beverage. Purpose: To determine the differences in effect of glycerin application on hardness of nanofiller composite resins with immersion of apple cider vinegar. The type of research used was experimental laboratories with a pretest and post test group design. Samples were 24 immersion in
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Dissertations / Theses on the topic "Vicker Hardness"

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Matulich, Ryan Douglas. "Post-fire Mechanical Properties of Aluminum Alloys and Aluminum Welds." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/32727.

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The focus of this research was to quantify the post-fire mechanical properties of 5083-H116 and 6082-T6 aluminum alloys. Post-fire exposure is considered heating the material to a particular temperature then cooling the material back to room temperature. The research included evaluating parent materials as well as welded samples. Post-fire mechanical properties of parent materials were evaluated at temperatures ranging from ambient to 500oC with isothermal and transient heating. Changes in material properties were evaluated through static tensile tests and hardness testing on cooled samples.
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LOW, MARJORIE. "Determinacao do estagio inicial da recristalizacao em ligas de aluminio por difracao de raios-x." reponame:Repositório Institucional do IPEN, 2000. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10881.

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ESPOSITO, IARA M. "Caracterização e cinética de recristalização da liga de alumínio 6063 após tratamentos termomecânicos." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11478.

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Made available in DSpace on 2014-10-09T12:52:21Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:00:50Z (GMT). No. of bitstreams: 0<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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LOBO, RAQUEL de M. "Analise microestrutural do zircaloy-4 submetido a diferentes tratamentos termo - mecanicos." reponame:Repositório Institucional do IPEN, 2002. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11031.

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Kotrík, Marcel. "Vliv ochranné atmosféry na vlastnosti svaru při kondukčním laserovém svařování plechů z konstrukční uhlíkové oceli." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399298.

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In the thesis are analysed influences of three shield gases, based on literary pursuit. Compared was influence of the gas consisting of pure Ar, mixture Ar with 3vol.% CO2 and the mixture Ar with 18vol.% CO2 on mechanical properties of conduction laser welded blunt welds made from structural steel DC01 and S235JR with thickness 3mm and 2mm. Compared were strength properties of the welds in tension, weld hardness and hardness of the heat affected area under the low stress. Further was observed and compared stream of the gases during welding process and its influences on the appearance of the tr
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Joyce, Anne-Marie. "Analysis of Metallurgically Bonded Electrospark Deposited Coatings." ScholarWorks@UNO, 2019. https://scholarworks.uno.edu/td/2670.

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SILVA, LUIS C. E. da. "Estudos do desenvolvimento e caracterização das ligas Cu-Ni-Pt e Cu-Ni-Sn para fins eletro-eletrônicos." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11480.

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Made available in DSpace on 2014-10-09T12:52:22Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:00:47Z (GMT). No. of bitstreams: 0<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Divardin, Sindianara de Fátima. "Avaliação in vitro da dureza, da resistência adesiva e do índice de adesivo remanescentes em três resinas ortodônticas." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2010. http://tede2.uepg.br/jspui/handle/prefix/1775.

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Made available in DSpace on 2017-07-24T19:22:15Z (GMT). No. of bitstreams: 1 Sindianara de Fatima.pdf: 661317 bytes, checksum: f3105a0fb63a1875c4e8df93076b6374 (MD5) Previous issue date: 2010-08-31<br>This in vitro study was conducted to evaluate the Vickers Hardness (HV), the shear bond strength (RA) and adhesive remnant index of orthodontic resins. A total of 60 premolars extracted for orthodontic indications were divided into tree groups, with 20 specimens (CP) for each group: COI – Concise Orthodontic (CO), TB – Transbond XT (TB), AQ – Aqualite (AQ). All specimens were stored in distille
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Sýkora, Milan. "Analýza mechanických vlastností bimetalových materiálů s cladovanou vrstvou Inconelu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417099.

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This diploma thesis deals with the analysis of mechanical properties of bimetallic materials with clad layer of Inconel. In the theoretical part of the work there is an analysis of the investigated bimetallic material. The following is a description of mechanical tests and methods for evaluating the integrity of the surface, which were used to determine the properties of bimetallic material. The experimental part focuses on individual tests of mechanical properties of the material. For each test, the procedure for the production of test specimens, a description of the test equipment, the perfo
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Ivánek, Radim. "Rozměrová, tvarová a materiálová analýza bimetalových dílců s definovaným poloměrem ohybu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417100.

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The thesis aim is an evaluation of achieved results coming from the analysis of pipe bend 180° for the critical bending / bend 1D and supercritical bending / bend 0,7D. The theoretical part is focused on material property of a bimetallic pipe and on methods applied to work out the analysis. The definition of critical points at a considered segment and possible defects arisen while bending is embodied in the thesis. The practical part of the thesis is based on presenting dimensional and proportional analysis based on using optical microscopes and 3D scanner GOM ATOS. The material analysis was a
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Books on the topic "Vicker Hardness"

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DellaCorte, Christopher. Vickers indentation hardness of stochiometric and reduced single crystal TiO(́Rutile) from 25 to 800ʻ́C. National Aeronautics and Space Administration, 1993.

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L, Deadmore Daniel, and United States. National Aeronautics and Space Administration., eds. Vickers indentation hardness of stichiometric and reduced single crystal TiO(Rutile) fron 25 to 800C. National Aeronautics and Space Administration, 1993.

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Herrmann, Konrad, ed. Hardness Testing. ASM International, 2011. http://dx.doi.org/10.31399/asm.tb.htpa.9781627083461.

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Hardness Testing: Principles and Applications is an in-depth study of one of the most fundamental properties of materials and the tools and techniques that have been developed to measure it. Hardness, as defined in the first chapter, is a type of resistance to deformation, the roots of which lie in the packing density of atoms and the bonding forces that keep them in place. As subsequent chapters explain, the hardness of metals, plastics, rubber, and ceramics can be measured as a response to an applied stress (whether static or dynamic), via noncontact sensing, or through an instrumented inden
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Book chapters on the topic "Vicker Hardness"

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Gooch, Jan W. "Vickers Hardness." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_12526.

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Jalilian, Ehsaneddin, and Andreas Uhl. "Deep Learning Based Automated Vickers Hardness Measurement." In Computer Analysis of Images and Patterns. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-89131-2_1.

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Liu, Ming, Guangyu Zhu, Xiangyu Dong, Jinming Liao, and Chenghui Gao. "Effects of Sample Tilt on Vickers Indentation Hardness." In Advanced Mechanical Science and Technology for the Industrial Revolution 4.0. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4109-9_28.

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Kaneko, Yoshihisa, H. Sakakibara, and Satoshi Hashimoto. "Dependence of Vickers Hardness on Annealing Temperature at Co/Cu Multilayered Films." In Materials Science Forum. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-462-6.2399.

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Hempel, A., M. Hasegawa, G. Brauer, F. Plazaola, M. Saneyasu, and Z. Tang. "Effects of Neutron Irradiation on Positron Lifetime and Micro-Vickers Hardness of Fe-Cu Model Alloys and Reactor Pressure Vessel Steel." In Ninth International Symposium on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118787618.ch88.

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"Vickers hardness." In Encyclopedic Dictionary of Polymers. Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-30160-0_12283.

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Wehrstedt, A. "Standardization." In Hardness Testing. ASM International, 2011. http://dx.doi.org/10.31399/asm.tb.htpa.t53310235.

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Abstract This chapter reviews the general principles involved in codifying standards and describes the historical development of materials testing standards. It provides information on the standards related to the Brinell, Vickers, Rockwell, and Knoop methods as well as those for the instrumented indentation test and hardness conversions.
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Polzin, T. "Hardness Measurement of Metals—Static Methods." In Hardness Testing. ASM International, 2011. http://dx.doi.org/10.31399/asm.tb.htpa.t53310025.

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Abstract This chapter describes the procedures, characteristics, and applications for static hardness test methods. It addresses test methods that are state of the art, commonly used, or that may find increased use due to certain advantages. The methods addressed are Rockwell hardness testing (ISO 6508 and ASTM E 18), Vickers hardness testing (ISO 6507, ASTM E92, and ASTM E384), Brinell hardness testing (ISO 6506 and ASTM E10), and Knoop hardness testing (ISO 4545 and ASTM E284). The chapter also discusses the advantages and disadvantages of these test methods.
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Herrmann, K. "Hardness Measurement of Plastics and Elastomers." In Hardness Testing. ASM International, 2011. http://dx.doi.org/10.31399/asm.tb.htpa.t53310119.

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Abstract This chapter reviews the tests and procedures used for measuring hardness of plastics and elastomers. The conventional testing methods (Rockwell, Vickers, Brinell, and Knoop) used for testing of metals are based on the idea that hardness represents the resistance against permanent plastic deformation of the material to be tested. However, elastic deformation must be considered in hardness measurement of elastomers. This chapter discusses the equipment and processes involved in the durometer (Shore) test, the International Rubber Hardness Degree test, and other specialized tests. It pr
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Ezhil Vizhi, R. "Vickers and Knoop Microhardness for Single Crystals." In CHARACTERIZATION OF SINGLE CRYSTALS. Royal Book Publishing, 2025. https://doi.org/10.26524/225.13.

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The Vickers microhardness test is a well-known technique in materials science and engineering, designed to measure the hardness of materials at the microscale. The hardness method is critical for various mechanical properties, such as hardness, plasticity, and fracture toughness, and it has the ability to measure microhardness accurately across a broad range of material hardness, making it an important
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Conference papers on the topic "Vicker Hardness"

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Christensen, Curt, and R. T. Hill. "Characterizing Acceptable Weld Heat Affected Zone Hardness in Low Alloy Steels." In CORROSION 1985. NACE International, 1985. https://doi.org/10.5006/c1985-85241.

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Abstract A series of tests have been undertaken to establish a correlation between weld heat-affected zone local hardness and sulfide stress cracking using four point bend tests and modified step loaded compact tension specimens. In total three steels were welded with varying heat inputs to obtain a wide variation of hardness. Vickers hardness testing showed the range to be between 200 and 350 HV 10. All sulphide stress cracking tests were conducted in a 5% sodium chloride -.5% acetic acid solution saturated with H2S. Testing procedures and conditions were as outlined in NACE TM-01-77. It appe
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Overman, Nicole R., Mychailo B. Toloczko, Matthew J. Olszta, and Stephen M. Bruemmer. "Strain Correlations in Alloy 690 Materials Using Electron Backscatter Diffraction and Vickers Hardness." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4453.

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Abstract High chromium, nickel-base Alloy 690 exhibits an increased resistance to stress corrosion cracking (SCC) in pressurized water reactor (PWR) primary water environments over lower chromium alloy 600. As a result, Alloy 690 has been used to replace Alloy 600 for steam generator tubing, reactor pressure vessel nozzles and other pressure boundary components. However, recent laboratory crack-growth testing has revealed that heavily cold-worked Alloy 690 materials can become susceptible to SCC. To evaluate reasons for this increased SCC susceptibility, detailed characterizations have been pe
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Su, Nurul Khairunnisa, Nik Akmar Rejab, Banjuraizah Johar, Zhwan Dilshad Ibrahim Sktani, and Zainal Arifin Ahmad. "The Influence of Niobia Additions on Microstructure, Vickers Hardness and Indentation Fracture Resistance of ZTA Ceramic Composites." In International Conference on X-Rays and Related Techniques in Research and Industry 2023. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-3llz9i.

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The effect of small additions of niobium pentoxide (Nb2O5) from 0 to 0.7 wt% on the zirconia toughened alumina (ZTA) ceramics sintered at 1600 °C was studied. Based on the results, the small addition of Nb2O5 was discovered to be able to significantly influence on phase, microstructure, and mechanical properties of ZTA ceramics. The presence of the secondary phase of Nb2Zr6O17 as a square-shaped particle is confirmed by SEM and FESEM-EDX up to 0.5 weight percent (wt.%) of Nb2O5 additions. The addition of 0.3 wt.% resulted in the highest Vickers hardness value of 1500 Vickers hardness (HV). How
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Chaar, Omar, Ahmad Raza Khan Rana, and George Jarjoura. "Development of Novel Corrosion Resistant Electroless Ni-P Composite Coatings for Pipeline Steel." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17841.

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ABSTRACT This paper describes the deposition of various Ni-P composite coatings over an AISI 1012 steel sample through an electroless coating process. The composite coatings were prepared using various ternary additives namely carbon nanotubes, titanium, and alumina. Coated samples were characterized over alongside surface and cross-sections using energy dispersive spectroscopy. Corrosion behaviors of composite coatings were characterized using potentiodynamic polarization. Mechanical and tribological attributes were evaluated using Vickers hardness and nano-indentation, respectively. Among th
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Amanov, Auezhan, Jun-Hyong Kim, Young-Sik Pyun, et al. "A Feasibility Study on Hybrid Use of Thermal Spray Coating and Ultrasonic Nanocrystalline Surface Modification." In ITSC2015, edited by A. Agarwal, G. Bolelli, A. Concustell, et al. ASM International, 2015. http://dx.doi.org/10.31399/asm.cp.itsc2015p0774.

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Abstract An ultrasonic nanocrystal surface modification (UNSM) technique was applied to the thermally sprayed yttria-stabilized zirconia (YSZ) ceramic thermal barrier coating (TBC) deposited onto a hot tool steel substrate to improve the mechanical and tribological properties. The surface microstructure of the as-sprayed and UNSM-treated coatings was examined using a scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and Raman spectroscopy, while the hardness of the coatings was measured by Vicker`s hardness tester. The friction and wear behavior of the coatings was
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Kothari, Kunal B., Norman M. Wereley, and Ramachandran Radhakrishnan. "Rapid Consolidation of TiB2 via Plasma Pressure Compaction." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-62355.

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This paper reports on the microstructure and mechanical properties of titanium diboride (TiB2) consolidated by plasma pressure compaction (P2C)*. Titanium diboride powder with 2.5 wt% of silicon nitride (Si3N4) used as a sintering aid was rapidly consolidated via P2C at 1500°C. This rapid consolidation process inhibits grain growth and ensures high strength and ductility of the consolidated material. Microstructure of the consolidated material was characterized via optical microscopy, scanning electron microscopy and wavelength dispersive spectroscopy. The consolidated specimens showed 93.5% d
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Dominguez-Nicolas, Saul M., and Petra Wiederhold. "Indentation Image Analysis for Vickers Hardness Testing." In 2018 15th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE). IEEE, 2018. http://dx.doi.org/10.1109/iceee.2018.8533881.

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Gadermayr, M., A. Maier, and A. Uhl. "Algorithms for microindentation measurement in automated Vickers hardness testing." In 10th International Conference on Quality Control by Artificial Vision, edited by Jean-Charles Pinoli, Johan Debayle, Yann Gavet, Frédéric Gruy, and Claude Lambert. SPIE, 2011. http://dx.doi.org/10.1117/12.890894.

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Nasrabadi, Hossein Beygi, and Birgit Skrotzki. "Ontology-Oriented Modeling of the Vickers Hardness Knowledge Graph." In 2023 10th International Conference on Mechanics, Materials and Manufacturing. Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-k8gj2l.

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This research deals with the development of the Vickers hardness knowledge graph, mapping the example dataset in them, and exporting the data-mapped knowledge graph as a machine-readable Resource Description Framework (RDF). Modeling the knowledge graph according to the standardized test procedure and using the appropriate upper-level ontologies were taken into consideration to develop the highly standardized, incorporable, and industrial applicable models. Furthermore, the Ontopanel approach was utilized for mapping the real experimental data in the developed knowledge graphs and the resultin
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Takakuwa, Osamu, Yuta Mano, and Hitoshi Soyama. "Effect of Indentation Load on Vickers Hardness of Austenitic Stainless Steel After Hydrogen Charging." In ASME 2014 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/pvp2014-28280.

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In order to reveal the effect of indentation load on Vickers hardness of austenitic stainless steel after hydrogen charging, the Vickers hardness measurements have been conducted with three different indentation load of 0.49, 1.96 and 9.80 N on the surface of type 316L austenitic stainless steel after hydrogen charging. Relationship between plastic deformation behavior during indentation process and hydrogen absorption behavior was revealed. In the Vickers hardness test, Vickers hardness keeps same value though the indentation load varies. Needless to say, the value did not depend on magnitude
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Reports on the topic "Vicker Hardness"

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South, Joseph, Franklin Kellogg, and Dennis Henry. Vickers Hardness Measurements of the M855 Cartridge Case Base. Defense Technical Information Center, 2009. http://dx.doi.org/10.21236/ada497469.

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Sparks, R. G., W. S. Enloe, and M. A. Paesler. Mapping residual stress fields from Vickers hardness indents using Raman microprobe spectroscopy. Office of Scientific and Technical Information (OSTI), 1988. http://dx.doi.org/10.2172/476629.

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Pargeter, Richard. PR-164-164504-R01 Suitability of Line Pipe Materials for Sour Service. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011509.

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It is understood that this work relates to issues arising from a failure in a pipe carrying wet sour gas, in which cracking developed from a shallow hard feature, 1 to 3mm deep and about 50mm in diameter. The overall aim is to prevent such failures, and samples of material from this program, selected on the basis of the work reported here, have been subjected to sour testing under PRCI project SSC-2-14, and there is also a link to PRCI project NDE-4-11, which is exploring non-destructive techniques for the detection of local hard regions. This report presents the techniques used in the assessm
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Chaiyapuck, Piyaporn, Supatra Jinawath, and Wada, Shigetaka. Sintering of Si[subscript 3]N[subscript 4] ceramics in an air atmosphere furnace. Chulalongkorn University, 2003. https://doi.org/10.58837/chula.res.2003.36.

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Pressed specimens of α-Si3N4 (SN-E10) powder with Y2O3 and Al2O3 additives were successfully sintered without a serious mass loss at a temperature range of 1550-1700°C in an air atmosphere furnace using a set of specially designed, high purity A12O3 crucibles, Si3N4 packing powder and A12O3 filler. The agglomeration on sintering of both the packing powder and Al2O3 filler was encountered, but it could be optimized by using coarse size materials. Additionally, the deterioration of Al2O3 crucibles leading to cracking after several times of usage is still to be improved. On the contrary, Si3N4 ce
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