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12 焊缝金属电子探针分析和析出相表征[82]

Fig.12 Electron probe microanalyses of V20 weld metal in as-welded (AW) (a) and PWHT (b) conditions, and characterization of precipitates of weld metal of V00 (c-f), V10 (g-j), and V20 (k-n) PWHT specimens[82] (ID—inter-dendritic, V00—V content is less than 0.005%, V10—V content is 0.10%, V20—V content is 0.18%. A representative local area containing M3C carbides in the dendritic core region is marked by the blue dashed outline; a representative local area containing nanoscale carbides (MC or M2C carbides) in the ID region is marked by the red solid outline)