440 MPa级高强钢焊缝金属的断裂韧性

曾道平, 安同邦, 郑韶先, 代海洋, 曹志龙, 马成勇

Fracture Toughness of Weld Metal of 440 MPa Grade High-strength Steel

ZENG Daoping, AN Tongbang, ZHENG Shaoxian, DAI Haiyang, CAO Zhilong, MA Chengyong

表7 CTOD的试验结果

Table 7 Results of CTOD tests

Sample W / mm B / mm S / mm Z / mm a0 / mm Δa / mm F / kN Vp / mm δ / mm 1 32.07 15.85 128 0 16.151 0.876 29.222 3.395 0.781 2 32.08 15.90 128 0 16.447 0.391 27.781 1.995 0.481 3 32.08 15.92 128 0 16.694 0.422 27.03 2.201 0.516 4 32.13 15.93 128 0 16.866 0.542 26.649 2.488 0.567 5 32.16 15.95 128 0 16.526 0.753 27.712 2.987 0.661 6 32.13 15.91 128 0 17.019 0.631 26.088 2.672 0.595