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对低合金钢16Mn R和Q345R两者材料的化学成分和力学性能进行对比,通过四副焊接工艺评定试验,对Q345R焊接接头的力学性能和低温冲击性能进行分析。
The chemical compositions and mechanical properties of both low alloy steels 16Mn R and Q345R were compared. The mechanical properties and low temperature impact properties of Q345R welded joints were analyzed by four welding process qualification tests.