Effects of temperature on the hardness and wear resistance of high-tungsten stellite alloys

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DOIResolve DOI: http://doi.org/10.1007/s11661-014-2664-8
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TypeArticle
Journal titleMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
ISSN1073-5623
Volume46
Issue2
Pages587599; # of pages: 13
SubjectAlloys; Scanning electron microscopy; Stellite; Temperature; Tribology; Tungsten; X ray diffraction; Effects of temperature; Elevated temperature; Energy dispersive x-ray; Microhardness tester; Pin-on-disk tribometers; X-ray diffraction spectrum
AbstractIn this research, two new Stellite alloys containing high tungsten are developed for wear resistance application owing to the distinct beneficial effects of tungsten in Stellite alloys. The microstructures of these alloys are analyzed using a scanning electron microscope (SEM) with an EDAX energy dispersive X-ray (EDX) spectroscopy system and X-ray diffraction spectrum. The micro-hardness and wear resistance of the alloys at room temperature and at elevated temperatures are investigated utilizing a Microhardness Tester Unit, with a Hot Stage, and a Hot Pin-on-Disk Tribometer, respectively. The wear test results of these alloys are compared with those of commercial wear-resistant Stellite 3 and Stellite 12. The worn surfaces of the specimens are analyzed using SEM/EDX to explore the wear mechanisms of these alloys with temperature change. The variations of hardness and wear resistance of these alloys with temperature are studied and discussed.
Publication date
PublisherSpringer International Publishing
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Aerospace
Peer reviewedYes
NPARC number21275459
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Record identifierda27f876-dd8a-43c3-8cdd-32b24f059b4c
Record created2015-07-14
Record modified2016-05-09
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