Evolution behavior of abnormal β grain region in Ti-5Al-5Mo-5V-1Cr-1Fe titanium alloy under the electropulsing treatment
2021
Abstract The influence of electropulsing treatment on black spots in Ti-5Al-5Mo-5 V-1Cr-1Fe titanium alloy has been investigated. Comparing samples processed by electropulsing heat treatment (EHT) with the sample heated by conventional heat treatment (CHT), the recovery and recrystallization of the black spots regions are greatly accelerated by EHT. It is also found that the micro-hardness of the CHT sample is almost the same as that of the received one. While the micro-hardness of EHT sample is smaller than CHT one, and increased with increasing joule temperature.
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