XIAO Lingang QIAN Kuangwu Fuzhou University
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Fuzhou
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Fujian
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China Correspondent:QIAN Kuangwu Professor
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Institute for Materials Research
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Fuzhou University Fuzhou
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Fujian 350002
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China
金属学报(英文版)
The apparent activation energy of serrated yielding was measured by two different methods for a commercial brass H68.The results showed that the apparent activation energy of serrat- ed yielding measured by a method involving(m+β)values increases with the grain size.In contrast,those measured by another method without involving(m+β)values are all the same for specimens with different grain sizes.Combining with the observation of the microstructures,the above phenomena have been explained.The method to measure the true activation energy of serrated yielding has also been proposed.
关键词:
serrated yielding
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