A model for the grain refinement mechanism in equal channel angular pressing of Mg alloy from microstructural studies

作者：Su C W; Lu L^*; Lai M O

来源：Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2006, 434(1-2): 227-236.

DOI：10.1016/j.msea.2006.06.103

• equal channel angular pressing
• grain refinement mechanism
• model

AZ31 Mg alloy samples were processed by the equal channel angular pressing (ECAP) process at 200 degrees C for up to four passes. Microstructural evolution during ECAP was studied systematically using optical microscope and transmission electron microscope. Using data observed from the microstructure analysis, a model for the grain refinement mechanism of Mg during ECAP is proposed. Multiple pass ECAP was also conducted at different temperatures to further confirm the proposed model.

• 出版日期2006-10-25