FEATURE OF SERRATED YIELDING IN HIGH STRENGTH Al-Zn-Mg-Cu ALLOY

Acta Metall Sin

1991, Vol. 27

Issue (5): 77-78 DOI:

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FEATURE OF SERRATED YIELDING IN HIGH STRENGTH Al-Zn-Mg-Cu ALLOY

QIAN Kuangwu;LI Xiaoqi;ZHANG Haoguo Fuzhou University

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QIAN Kuangwu;LI Xiaoqi;ZHANG Haoguo Fuzhou University. FEATURE OF SERRATED YIELDING IN HIGH STRENGTH Al-Zn-Mg-Cu ALLOY. Acta Metall Sin, 1991, 27(5): 77-78.

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Abstract The temperature dependence of critical strain for serrated yielding was found inhigh strength Al-Zn-Mg-Cu alloy. It divides into two temperature regions. Their temperaturecoefficients of critical strain will be negative and positive respectively.

Key words: serrated yielding dynamic strain aging high strength Al a1loy critical strain

Received: 18 May 1991

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