Effects of Impurity on Microstructure and Hardness in Pure Al Subjected to Dynamic Plastic Deformation at Cryogenic Temperature

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	Effects of Impurity on Microstructure and Hardness in Pure Al Subjected to Dynamic Plastic Deformation at Cryogenic Temperature
	F. Huang; N. R. Tao; K. Lu
	2011
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	27 期号:7 页码:628-632
摘要	Microstructure and hardness were investigated in pure Al samples with different purities (5N: 99.999%, 4N: 99.993%, and 2N: 99.7% in weight) subjected to dynamic plastic deformation at cryogenic temperatures. The saturated sizes of refined grains/subgrains in these samples induced by plastic deformation are about 240 nm without an obvious impurity effect, but the dislocation density in 2N Al is evidently higher than that in other samples. Boundary misorientations for 5N and 4N Al are below 10 degrees with average values of 2-3 degrees, while the average misorientation for 2N Al is obviously larger, being about 14 degrees. Microhardness of LNT-DPD 2N Al is higher than that of 5N and 4N Al, owing to the enhanced dislocation density as their grain/subgrain sizes are almost identical.
部门归属	[huang, f.; tao, n. r.; lu, k.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;tao, nr (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;nrtao@imr.ac.cn
关键词	Aluminum Impurity Nanostructure Grain Refinement Grained Aluminum Tensile Behavior Strain-rate Evolution Refinement Pressure Alloys
URL	查看原文
WOS记录号	WOS:000293991200007
引用统计	被引频次：17[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/321006/30404
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. Huang,N. R. Tao,K. Lu. Effects of Impurity on Microstructure and Hardness in Pure Al Subjected to Dynamic Plastic Deformation at Cryogenic Temperature[J]. Journal of Materials Science & Technology,2011,27(7):628-632.
APA	F. Huang,N. R. Tao,&K. Lu.(2011).Effects of Impurity on Microstructure and Hardness in Pure Al Subjected to Dynamic Plastic Deformation at Cryogenic Temperature.Journal of Materials Science & Technology,27(7),628-632.
MLA	F. Huang,et al."Effects of Impurity on Microstructure and Hardness in Pure Al Subjected to Dynamic Plastic Deformation at Cryogenic Temperature".Journal of Materials Science & Technology 27.7(2011):628-632.