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	EVOLUTIONS OF GRAIN ORIENTATION AND DISLOCATION BOUNDARY IN AA1050 ALUMINUM ALLOY DURING COLD ROLLING FROM LOW TO MEDIUM STRAINS
	Liu Qing ; Yao Zongyong ; Godfrey, A. ; Liu Wei
	2010-10-12 ; 2010-10-12
关键词	aluminum alloy cold rolling electron backscattered diffraction (EBSD) dislocation boundary structure DEFORMATION MICROSTRUCTURE SINGLE-CRYSTALS CUBE TEXTURE FLOW-STRESS DEPENDENCE AL COMPRESSION ALIGNMENT NICKEL MG Metallurgy & Metallurgical Engineering
中文摘要	The dislocation structure evolution in AA1050 aluminum alloy during cold rolling from low to medium strains was investigated using electron channeling contrast, (ECC) imaging and the electron backscattered diffraction (EBSD) techniques. The results show that the grains are subdivided into a typical cell-block structure and there is a strong correlation between deformation microstructure and grain orientation. Based on the characterizations of grain subdivision and dislocation boundary structure, grains can be classified into three types: Type A-grains Containing two sets of geometrically necessary boundaries (GNBs), Type B-grains containing one set, of GNBs, and Type C-grains consisting of large dislocation cells structure. Most of grains with Copper, Brass and Goss orientations have Type A microstructure; grains with S orientation have Type B microstructure grains with Cube orientation have Type C microstructure. The alignment of, the extended dislocation boundaries depends strongly on the grain orientation. In most grains the boundaries have inclination angles of +/-(30 degrees-40 degrees) to rolling direction (RD), and are approximately parallel to the trace's of the most active {111} slip planes as identified by a Schmid factor analysis.
语种	中文 ; 中文
出版者	SCIENCE PRESS ; BEIJING ; 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78188]
专题	清华大学
推荐引用方式 GB/T 7714	Liu Qing,Yao Zongyong,Godfrey, A.,et al. EVOLUTIONS OF GRAIN ORIENTATION AND DISLOCATION BOUNDARY IN AA1050 ALUMINUM ALLOY DURING COLD ROLLING FROM LOW TO MEDIUM STRAINS[J],2010, 2010.
APA	Liu Qing,Yao Zongyong,Godfrey, A.,&Liu Wei.(2010).EVOLUTIONS OF GRAIN ORIENTATION AND DISLOCATION BOUNDARY IN AA1050 ALUMINUM ALLOY DURING COLD ROLLING FROM LOW TO MEDIUM STRAINS..
MLA	Liu Qing,et al."EVOLUTIONS OF GRAIN ORIENTATION AND DISLOCATION BOUNDARY IN AA1050 ALUMINUM ALLOY DURING COLD ROLLING FROM LOW TO MEDIUM STRAINS".(2010).

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