An investigation of cobalt phase structure in WC-Co cemented carbides before and after deep cryogenic treatment

IMR OpenIR

	An investigation of cobalt phase structure in WC-Co cemented carbides before and after deep cryogenic treatment
	Zhang, Hejia; Chen, Liqing; Sun, Jing; Wang, Wenguang; Wang, Quanzhao; lqchen@mail.neu.edu.cn
	2015
发表期刊	INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
ISSN	0263-4368
卷号	51 页码:201-206
摘要	The micro-morphology and crystal structure in WC-12 wt.%Co, WC-20 wt.%Co, WC-40 wt.%Co and WC-80 wt.%Co cemented carbides were investigated before and after deep cryogenic treatment (DCT) with scanning electron microscopy (SEM) and with the use of an X-ray diffractometer. In order to avoid the shielding of WC particles to diffraction peaks of binder phase Co in XRD phase analysis, a selective electrolytic corrosion (SEC) was used. The features of diffraction peaks about these cemented carbides before and after SEC were compared and analyzed. The results show that after DCT, there is no significant change in micro morphology, but the crystal structure of binder phase Co has an obvious change. Before SEC, the diffraction peaks of binder phase Co are only obvious in WC-80Co in XRD analysis. So, the change of diffraction peak intensity of binder phase Co before and after DCT is so small that it can hardly be observed except WC-80Co. But, after SEC it becomes obvious in all WC-Co cemented carbides. Both before and after DCT, epsilon-Co has a higher percentage in high-cobalt cemented carbides than that in low-cobalt cemented carbides. However, the effect of DCT is much more evident in lowcobalt cemented carbides than that in the high-cobalt ones. (C) 2015 Elsevier Ltd. All rights reserved.
部门归属	[zhang, hejia ; chen, liqing ; sun, jing] northeastern univ, state key lab rolling & automat, shenyang 110819, peoples r china ; [wang, wenguang] liaoning shihua univ, sch mech engn, fushun 113001, peoples r china ; [wang, quanzhao] chinese acad sci, inst met res, shenyang 110016, peoples r china
关键词	Cemented Carbides Deep Cryogenic Treatment Micro-morphology Crystal Structure Selective Electrolytic Corrosion
资助者	Major Special Project, Ministry of Industry and Information Technology, China [2012ZX04003061]
收录类别	sci
语种	英语
WOS记录号	WOS:000356744300028
引用统计	被引频次：28[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/321006/74625
专题	中国科学院金属研究所
通讯作者	lqchen@mail.neu.edu.cn
推荐引用方式 GB/T 7714	Zhang, Hejia,Chen, Liqing,Sun, Jing,et al. An investigation of cobalt phase structure in WC-Co cemented carbides before and after deep cryogenic treatment[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,2015,51:201-206.
APA	Zhang, Hejia,Chen, Liqing,Sun, Jing,Wang, Wenguang,Wang, Quanzhao,&lqchen@mail.neu.edu.cn.(2015).An investigation of cobalt phase structure in WC-Co cemented carbides before and after deep cryogenic treatment.INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,51,201-206.
MLA	Zhang, Hejia,et al."An investigation of cobalt phase structure in WC-Co cemented carbides before and after deep cryogenic treatment".INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS 51(2015):201-206.