ISSN: 1003-6326
CN: 43-1239/TG
CODEN: TNMCEW

Vol. 24    No. 4    April 2014

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Evolution of microstructure and hardness of aluminum after friction stir processing
Wen-ying GAN, Zheng ZHOU, Hang ZHANG, Tao PENG
(College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China)
Abstract: The effects of friction stir processing (FSP) on the microstructure, microtexture and hardness of rolled pure aluminum were investigated. The microstructure and microtexture were characterized using electron backscattered diffraction (EBSD) technique on the transversal section. The stir zone (SZ) contains fine, equiaxed and fully recrystallized grains. The texture component of the base material mainly consists of R, S and brass R textures. Miner copper texture component is also determined. In the center of the stir zone, the dominant texture is (111) parallel to about 70° from ND pointing toward RD. The textures of this location rotating clockwise about 30° and anticlockwise about 60° around the ND result in the textures of the areas, which are 3 mm apart from this location on the retreating side and advancing side, respectively.
Key words: friction stir processing; aluminum; EBSD; texture
Superintended by The China Association for Science and Technology (CAST)
Sponsored by The Nonferrous Metals Society of China (NFSOC)
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