JIANG Xinggang CUI Jianzhong MA Longxiang Northeast University of Technology
,
Shenyang
,
China
金属学报(英文版)
The fractal dimension changes of cavities have been determined during superplastic deformation of the high strength aluminiurn alloy 7475 with different strain,temperature, strain rate and grain size.The fractal dimension of cavities may increase with the increase of strain.It becomes higher as the alloy deformed under lower temperatures,greater strain rate and coarser grain size.The alloy would be approaching to rupture if the fractal dimension of cavities raised to a certain extent.
关键词:
fractal dimension
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