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Weldability of 780 MPa Super-High Strength Heavy-Duty Truck Crossbeam Steel

WANG Xiao-nan , DI Hong-shuang , ZHANG Chi , DU Lin-xiu , DONG Xue-xin

钢铁研究学报(英文版)

CO2-shielded welding experiments of newly developed, 780 MPa super-high strength heavy-duty truck crossbeam steel were conducted, and the microstructure, microhardness, mechanical properties, and impact toughness of the welded joint were studied. The evolution of the microstructure of the welded joi...

关键词: super-high strength steel , crossbeam steel , weldability , M/A island , impact toughness