THE EFFECT OF WARM-ROLLING POOR TO AGING ON STRESS CORROSION CRACKING SUSCEPTIBILITY OF ALUMINIUM ALLOY 2O91

J Chin Soc Corr Pro

1995, Vol. 15

Issue (1): 15-20 DOI:

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THE EFFECT OF WARM-ROLLING POOR TO AGING ON STRESS CORROSION CRACKING SUSCEPTIBILITY OF ALUMINIUM ALLOY 2O91

Li Renshun; Wang Zuoyi(Harbin Institute of Technology)

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Abstract The influence of warm-rolling at different temperatures prior to aging on the stress corrosion cracking sareptibility of Al-Li-Cu-Mg-Zr alloy 2091 has been studied by slow strain rate tests and constant strain tests with threepoiot loading samples. The examination of microstructure of the alloy by TEM shows that warm-rolling prior tO aging reduces the amount of T2 precipitates and enhances the volume of δ' and S' phare within grains. As a result, the SCC resistance of the alloy is sipecatly improved. The alloy rorolled at 180℃ prior to aging possesses the lowest SCC susceptibility.

Key words: Al-Li-Cu-Mg-Zr alloy 2091 Warm-rolling SCC susceptibility

Received: 25 February 1995

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Li Renshun; Wang Zuoyi(Harbin Institute of Technology). THE EFFECT OF WARM-ROLLING POOR TO AGING ON STRESS CORROSION CRACKING SUSCEPTIBILITY OF ALUMINIUM ALLOY 2O91. J Chin Soc Corr Pro, 1995, 15(1): 15-20.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1995/V15/I1/15

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[1]	Hongxia Gao. The Appraisal on SCC Susceptibility of Aluminized 304 Stainless Steel by Different Test Means[J]. 中国腐蚀与防护学报, 2004, 24(5): 289-292 .

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