The effects of load on the microstructure and wear behavior of Co-27Cr-22Fe alloy processed by high-temperature nitriding

doi:10.1016/j.jmrt.2023.06.164

IMR OpenIR

	The effects of load on the microstructure and wear behavior of Co-27Cr-22Fe alloy processed by high-temperature nitriding
	Chen, Yipeng 1,2; Cai, Yong 3; Yuan, Chao 2; Yang, Liqi 1; Gao, Xinyu 1,2; Wang, Yongqiang 1,2; Zhang, Bing 1
通讯作者	Yuan, Chao(ychao@imr.ac.cn)
	2023-07-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	25 页码:3007-3021
摘要	In this study, high-temperature nitriding was used to improve the surface hardness and wear resistance of Co-27Cr-22Fe alloy in a thermogravimetric analyzer. The high-temperature nitriding treatments were performed at 1200 degrees C for 3 and 10 h. Subsequently, at room temperature, the dry sliding wear test was carried out, and the possible effects of load on friction performance and microstructure of different specimens were investigated. The results show that the microstructure of as-received specimens is composed of g-Co and MC carbides, while the microstructure of the nitrided specimens contains g-Co, MC car-bides, acicular AlN, and granular (Ti, Nb)N. The thickness of the nitriding layer is 375 mm and 708 mm for nitriding 3 h and nitriding 10 h, respectively. An improvement in microhardness (-425 HV) was attained for nitrided specimens. For the as-received specimens, the wear rate decreases with increasing load. The as-received specimen exhibits better wear resistance than the nitrided specimen under a high load (-30 N). The wear mechanism under different loads was mainly abrasive wear, accompanied by adhesive wear. For the nitrided speci-mens, the specimens show different wear mechanisms under varying loads. Under low load (-5 N and-15 N), the high-temperature nitriding improves the wear resistance, and it exhibits abrasive wear and oxidative wear. Under high load (-30 N), the wear resistance of the nitrided specimen was significantly reduced, and the wear mechanism is mainly abrasive wear, fatigue wear, and oxidative wear.(c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词	Co-27Cr-22Fe alloy High-temperature nitriding Nitrides Wear mechanism
DOI	10.1016/j.jmrt.2023.06.164
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001090438000001
出版者	ELSEVIER
引用统计	被引频次：1[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/321006/177753
专题	中国科学院金属研究所
通讯作者	Yuan, Chao
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Brazil 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yipeng,Cai, Yong,Yuan, Chao,et al. The effects of load on the microstructure and wear behavior of Co-27Cr-22Fe alloy processed by high-temperature nitriding[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2023,25:3007-3021.
APA	Chen, Yipeng.,Cai, Yong.,Yuan, Chao.,Yang, Liqi.,Gao, Xinyu.,...&Zhang, Bing.(2023).The effects of load on the microstructure and wear behavior of Co-27Cr-22Fe alloy processed by high-temperature nitriding.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,25,3007-3021.
MLA	Chen, Yipeng,et al."The effects of load on the microstructure and wear behavior of Co-27Cr-22Fe alloy processed by high-temperature nitriding".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 25(2023):3007-3021.