Densification mechanism of Cu-Fe based diamond composite ultra thin sawing matrixes during cold uniaxial compaction

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	Densification mechanism of Cu-Fe based diamond composite ultra thin sawing matrixes during cold uniaxial compaction
	Dong, Hong-Feng 1; Li, Wen-Sheng 1; Lu, Yang 1; Zhang, Jie 2; Wang, Jun-Wei 1
刊名	Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy
	2013-06-01
卷号	18 期号:3 页码:326-332
关键词	Aspect ratio Compaction Densification Diamonds Microhardness Microstructure Sawing Strain hardening Archimedes principle Densification mechanisms Different pressures Experimental values Microhardness tester Non-uniform deformation Ultra-thin Uniaxial compaction
ISSN号	16730224
英文摘要	A compact of Cu-based diamond composite ultra thin sawing matrixes was prepared by cold uniaxial compaction technology at different cold pressure using Cu-Fe based element mixed powders as raw material. The microstructure, density and microhardness of the compact were investigated by OM, SEM, Archimedes principle and microhardness tester. The results show that Heckel model has high precision and the relative density calculated by using the model is fitting with that of experimental value at the pressure of 149, 187 and 224 MPa, however, increasing pressure, the calculated values at 168 MPa and 205 MPa are higher than that of experimental ones because of overestimated the work hardening, non uniform deformation and changing inter-powder force of the powder; in addition, due to the much smaller aspect ratio of the compact, transverse strain is restrained which causes the axial and radial microstructure anisotropy at different pressure and the fitting Poisson's ratio is lower than that of literature report.
语种	中文
出版者	Central South University, Lushan Nanlu, Changsha, 410043, China
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113490]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
作者单位	1.State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; 2.Chongqing Chang'an Automobile Co. Ltd., Chongqing 401120, China
推荐引用方式 GB/T 7714	Dong, Hong-Feng,Li, Wen-Sheng,Lu, Yang,et al. Densification mechanism of Cu-Fe based diamond composite ultra thin sawing matrixes during cold uniaxial compaction[J]. Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy,2013,18(3):326-332.
APA	Dong, Hong-Feng,Li, Wen-Sheng,Lu, Yang,Zhang, Jie,&Wang, Jun-Wei.(2013).Densification mechanism of Cu-Fe based diamond composite ultra thin sawing matrixes during cold uniaxial compaction.Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy,18(3),326-332.
MLA	Dong, Hong-Feng,et al."Densification mechanism of Cu-Fe based diamond composite ultra thin sawing matrixes during cold uniaxial compaction".Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy 18.3(2013):326-332.