On the influence of heat treatments on the stress corrosion cracking of Al-Zn-Mg alloys
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概要
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Investigation was made to examine the effects of heat treatments on the stress corrosion cracking of ternary Al-Zn-Mg alloys such as Al-4.5wt.%Zn-3wt.%Mg, Al-4.5wt.%Zn-2wt.%Mg, and Al-4.5wt.%Zn-1wt.%Mg. The results obtained were as follows.(1) The stress corrosion cracking was the most liable for the alloys aged to have the approximate maximum strength.(2) The cracking was more liable when the temperature of solution treatment was higher and the rate of quenching was higher.(3) The cracking was more liable with the increase in zinc and magnesium contents.As shown by the transmission electron microphotograph, the above results were summarized as follows : The stress corrosion cracking of alloys was more liable when the range of precipitate-free zone was narrower in the grain boundary and the precipitates was finer.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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