EFFECT OF SOLID SOLUTION TREATMENT ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HOT-PRESS CoCrW ALLOYS

IMR OpenIR

	EFFECT OF SOLID SOLUTION TREATMENT ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HOT-PRESS CoCrW ALLOYS
	You Xiaohong 1; Wang Ganggang 1; Wang Jun 2; Xu Tao 2; Zhang Hongyu 3; Wei Hua 3
通讯作者	Wei Hua(hwei@imr.ac.cn)
	2016-02-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	52 期号:2 页码:161-167
摘要	Co-based alloy has high strength, good corrosion and wear resistance, and is widely used in aviation industry, nuclear industry. The cast Co-based alloys has high hardness brittleness, but the toughness is low, which limits its wide use. The CoCrW alloy prepared by powder metallurgy process has high toughness, at the same time, the mechanical properties of the CoCrW alloy can be changed by heat treatment. In this work, the effect of solid solution treatment on the microstructure and mechanical properties of the hot pressed alloy was studied by SEM, XRD and TEM, hardness test, room-temperature tensile and wear experiment. The results show that the microstructure of the as-hot pressed and solid solution state CoCrW alloy are both composed of M23C6, M6C, CrCo intermetallic compounds and gamma-Co matrix, the contents of M23C6 and prior particle boundaries decrease remarkably after solution treatment, meanwhile, the toughness and wear resistance of the alloy are improved. With the increase of solid solution temperature and time, the hardness and tensile strength at room temperature of CoCrW alloys increase first and then decrease.
关键词	CoCrW alloy hot pressing microstructure solid solution treatment mechanical property
资助者	National Natural Science Foundation of China
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51201161]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000371849600005
出版者	SCIENCE PRESS
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/121771
专题	中国科学院金属研究所
通讯作者	Wei Hua
作者单位	1.Taiyuan Univ Sci & Technol, Sch Mat Sci & Engn, Taiyuan 030000, Peoples R China 2.Mil Representat Off Factory, Xian 710077, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	You Xiaohong,Wang Ganggang,Wang Jun,et al. EFFECT OF SOLID SOLUTION TREATMENT ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HOT-PRESS CoCrW ALLOYS[J]. ACTA METALLURGICA SINICA,2016,52(2):161-167.
APA	You Xiaohong,Wang Ganggang,Wang Jun,Xu Tao,Zhang Hongyu,&Wei Hua.(2016).EFFECT OF SOLID SOLUTION TREATMENT ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HOT-PRESS CoCrW ALLOYS.ACTA METALLURGICA SINICA,52(2),161-167.
MLA	You Xiaohong,et al."EFFECT OF SOLID SOLUTION TREATMENT ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HOT-PRESS CoCrW ALLOYS".ACTA METALLURGICA SINICA 52.2(2016):161-167.