WANG Zhengfu ZHU Ziyong KE Wei Corrosion Science Laboratory
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Institute of Corrosion and Protection of Metals
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Academia Sinica
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Shenyang
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ChinaZHANG Yun HU Zhuangqi Institute of Metal Research
,
Academia Sinica
,
Shenyang
,
China
金属学报(英文版)
Studies were made of the influence of aging conditions and applied potentials on the stress corrosion carcking(SCC)susceptibility for an Al-Li-Cu-Mg alloy by slow strain rate technique.The relationship between the relative hydrogen content on specimen surface,the applied potentials and elapsed time has also been examined.The SCC susceptibility was found to be dependent on aging conditions in which the peak aged condition gave the worst SCC resistance and the natural aged condition had the best one. The SCC susceptibility and surface hydrogen content relates to the applied potentials. The anodic potentials increase SCC susceptibility,while the cathodic ones below the critical potential accelerate SCC.It is considered that both the anodic dissolution and
关键词:
Al-Li alloy
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