EBSD study of advanced Ti-5.7Al-3.8Mo-1.2Zr-1.3Sn alloy subjected to equal-channel angular pressing

In this work, electron backscatter diffraction (EBSD) was applied for microstructural characterization of the advanced Ti-5.7Al-3.8Mo-1.2Zr-1.3Sn alloy subjected to equalchannel angular pressing (ECAP). It was found that the spheroidization process induced by ECAP was governed by the conventional boundary splitting mechanism. The nearly-Burgers orientation relationship between the spheroidized a-and b phases was revealed. This intriguing result can be attributed to the very high cooperation in slip activity between the phases. (c) 2021 Elsevier B.V. All rights reserved.

Automated summary

The microstructural characterization of the Ti-5.7Al-3.8Mo-1.2Zr-1.3Sn alloy after equal channel angular pressing (ECAP) showed that the spheroidization process was governed by the conventional boundary splitting mechanism, with a nearly-Burgers orientation relationship between the spheroidized a-and b phases. This suggests a high cooperation in slip activity between the phases.