高强钢焊缝金属组织设计与强韧化机理研究进展
陆善平, 孙健

Research Progress on Microstructural Design and Strengthening-Toughening Mechanisms of Weld Metal in High-Strength Steels
LU Shanping, SUN Jian
图11 焊缝金属PWHT过程中析出相演变[81]
Fig.11 Precipitates evolution of weld metal during PWHT process[81] (PAGB—prior austenite grain boundary; black arrows show the PAGB, purple arrows show M3C precipitates, and green arrows show M2C precipitates)
(a) 530 ℃ insulation for 2 h (b) 570 ℃ insulation for 2 h (c, d) 610 ℃ insulation for 2 h