@inproceedings{9afed70e2f904d4a8ef1382ff31fe57d,
title = "Precipitate phases and mechanical properties of heat- Treated ASTM F 90 Co-Cr-W-Ni alloy",
abstract = "The precipitation behavior during heat treatment and resulting mechanical properties of ASTM F 90 Co-20Cr-15W-10Ni (mass%) alloys were investigated with regards to their biomedical applications. Heat treatment was conducted at temperatures of 873 to 1623 K, for a holding time of 259.2 ks. The precipitates produced were then electrolytically extracted from the alloys and analyzed by X-ray diffraction (XRD). This revealed that the precipitates formed were an M23X6 type and/or η-phase (i.e., an M 6X-M12X type). The M23X6- Type precipitate was detected across the entire heat- Treatment temperature range; however, the η-phase precipitate was only detected at 1073 to 1473 K, becoming dominant at 1173 to 1373 K. The formation of M23X 6 type precipitates at 873 K is shown to improve the mechanical properties of this alloy, whereas the domination by the η-phase precipitate at higher temperatures causes deterioration in the ductility.",
keywords = "ASTM F 90, Co-Cr-W-Ni alloy, Elongation, Hardness, Precipitates, Tensile strength",
author = "Kosuke Ueki and Kyosuke Ueda and Takayuki Narushima",
year = "2014",
month = jan,
day = "1",
doi = "10.4028/www.scientific.net/KEM.616.258",
language = "English",
isbn = "9783038351306",
series = "Key Engineering Materials",
publisher = "Trans Tech Publications Ltd",
pages = "258--262",
booktitle = "Advanced Ceramics and Novel Processing",
note = "5th International Symposium on Advanced Ceramics, ISAC 2013 and 3rd International Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2013 ; Conference date: 09-12-2013 Through 12-12-2013",
}