Enhancing the stress corrosion cracking resistance of a low-Cu containing Al-Zn-Mg-Cu aluminum alloy by step-quench and aging heat treatment

Peng Xie,Songyi Chen,Kanghua Chen,Huibin Jiao,Lanping Huang,Zhuo Zhang,Zhen Yang

Corrosion Science（2019）

引用 69|浏览19

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摘要

•T74 and RRA almost can’t improve the SCC resistance of AA7097 compared with T6.•SQA can greatly improve the SCC resistance of AA7097 compared with T6.•Copper in GBPs in T74 is almost the same as T6.•Higher copper and larger size of GBPs in SQA than T74 and T6.

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关键词

Al-Zn-Mg-Cu aluminum alloy,Step-quench,Stress corrosion cracking,Precipitates

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