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5 初始裂纹的长度 (mm)

Table 5 Original crack length

Sample a01 a02 a03 a04 a05 a06 a07 a08 a09 1 14.21 15.98 16.71 16.75 16.38 15.86 16.08 16.31 16.07 2 14.92 16.14 16.88 17.14 17.09 16.86 16.18 16.11 15.83 3 16.49 16.67 16.46 16.71 17.27 17.47 17.26 16.26 14.42 4 15.52 16.71 17.41 17.65 17.53 17.07 16.48 16.30 16.03 5 16.47 16.72 16.25 16.22 16.45 16.93 17.03 16.60 15.55 6 17.20 17.36 16.85 16.69 17.04 16.86 17.46 16.90 15.58