Mo含量对1000 MPa级高强钢焊缝金属组织和力学性能的影响

刘洋, 孙健, 陆善平

Effect of Mo Content on the Microstructure and Mechanical Properties of 1000 MPa Grade High-Strength Steel Weld Metal

LIU Yang, SUN Jian, LU Shanping

图12 不同Mo含量焊缝金属室温冲击断口形貌的SEM像

Fig.12 Low (a-c) and locally high (a1-c1, a2-c2) magnified SEM images showing the impact fracture morphologies of weld metal with different Mo contents at room temperature (Areas enclosed by dashed lines show the fiber regions. Black arrows show the secondary cracks. White arrows show the cleavage characteristics) (a, a1, a2) Mo00 (b, b1, b2) Mo03 (c, c1, c2) Mo07