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2 试板和焊缝金属的力学性能
Table 2 Mechanical properties of test plate and weld metal
Material

Yield strength

Rp0.2 / MPa

Tensile strength

Rm / MPa

Elongation after

fracture A / %

Reduction of

Area Z / %

Poisson's

ratio μ

Elastic modulus

E / GPa

Test panel55261924.576--
Weld metal53859324.0780.3212