预热对690 MPa级HSLA钢对接接头力学性能的影响

汤忖江, 安同邦, 彭云, 马成勇, 林纯丞, 石照夏, 秦哲

Effect of Preheating on Microstructure and Mechanical Properties of Butt Joint of 690 MPa Grade HSLA Steel

TANG Cunjiang, AN Tongbang, PENG Yun, MA Chengyong, LIN Chuncheng, SHI Zhaoxia, QIN Zhe

图1 对接接头力学性能取样和检测位置以及冲击试样观察位置

Fig.1 Locations of taking samples and mechanical properties measurement in butt joints (a) and observation region of impact sample (b) (WM—Weld metal, HAZ—Heat affected zone, BM—Base metel, A—Prior welding side, B—Posterior welding side)