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Microstructure, mechanical properties and corrosion behavior of commercial 7N01 alloys 被引量:1
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作者 Pei-hao ZHAO Xiao-lan WU +9 位作者 Yang LIU Kun-yuan GAO Sheng-ping WEN Wu WEI Li RONG Hui HUANG Hong WU De-jing ZHOU Qian ZHANG Zuo-ren NIE 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2022年第3期778-789,共12页
The effect of grain morphology and precipitates on mechanical properties and corrosion behavior of two commercial 7 N01 alloys was studied using transmission electron microscopy(TEM) and scanning electron microscopy(S... The effect of grain morphology and precipitates on mechanical properties and corrosion behavior of two commercial 7 N01 alloys was studied using transmission electron microscopy(TEM) and scanning electron microscopy(SEM) equipped with electron backscatter diffraction(EBSD). Results showed that the recrystallization degree of the outer surface of 7 N01-I alloy was lower than that of 7 N01-II alloy. The main strengthening precipitates of two alloys were mainly η’ phases. The grain boundary precipitates(GBPs) of 7 N01-I alloy distributed discontinuously, while those of 7 N01-II alloy distributed continuously. The strength of two 7 N01 alloys was similar, but the maximum corrosion depth of 7 N01-I alloy was less than that of 7 N01-II alloy, because the discontinuous GBPs and the lower recrystallization degree of outer surface of 7 N01-I alloy were favorable for improving corrosion behavior. Different models of strengthening mechanism were discussed, and the corrosion behavior was correlated with microstructure. 展开更多
关键词 7N01 alloys MICROSTRUCTURE mechanical properties corrosion behavior
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