Influence of Deep Cryogenic Treatment on Microstructures and Mechanical Properties of an Ultrafine-Grained WC-12Co Cemented Carbide

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	Influence of Deep Cryogenic Treatment on Microstructures and Mechanical Properties of an Ultrafine-Grained WC-12Co Cemented Carbide
	H. J. Zhang; L. Q. Chen; J. Sun; W. G. Wang; Q. Z. Wang
	2014
发表期刊	Acta Metallurgica Sinica-English Letters
ISSN	1006-7191
卷号	27 期号:5 页码:894-900
摘要	Effect of deep cryogenic treatment (DCT) on the microstructures and mechanical behavior of ultrafine-grained WC-12Co cemented carbide was investigated by using XRD, SEM, and DSC. The phase transformations of pure Co and binder phase Co in cemented carbide were analyzed in detail to correlate the strengthening mechanism with its alpha -> epsilon phase transition. The results show that DCT resulted in a slight increase in hardness and bending strength of ultrafinegrained WC-12Co cemented carbide. For the ultrafine-grained cemented carbide after DCT, there is no significant change in the microstructure and the elemental distribution of the cemented carbides, but the fractured morphology shows a feature of plastic deformation. In the cases of pure Co and the binder phase Co in WC-12Co cemented carbide, they exhibit different features of phase transformation. The improvement of mechanical property of cemented carbide can be attributed to the increased amount of epsilon-Co in WC-12Co composites after DCT.
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. ; chen, lq (reprint author), northeastern univ, state key lab rolling & automat, shenyang 110819, peoples r china. ; lqchen@mail.neu.edu.cn
关键词	Wc-12co Composite Cemented Carbide Deep Cryogenic Treatment Mechanical Properties Microstructure Medium Density Fiberboard Tool Wear Tungsten Inserts Performance Wc-8co
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73492
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. J. Zhang,L. Q. Chen,J. Sun,et al. Influence of Deep Cryogenic Treatment on Microstructures and Mechanical Properties of an Ultrafine-Grained WC-12Co Cemented Carbide[J]. Acta Metallurgica Sinica-English Letters,2014,27(5):894-900.
APA	H. J. Zhang,L. Q. Chen,J. Sun,W. G. Wang,&Q. Z. Wang.(2014).Influence of Deep Cryogenic Treatment on Microstructures and Mechanical Properties of an Ultrafine-Grained WC-12Co Cemented Carbide.Acta Metallurgica Sinica-English Letters,27(5),894-900.
MLA	H. J. Zhang,et al."Influence of Deep Cryogenic Treatment on Microstructures and Mechanical Properties of an Ultrafine-Grained WC-12Co Cemented Carbide".Acta Metallurgica Sinica-English Letters 27.5(2014):894-900.