采用金相显微镜、万能试验机、冲击试验机、显微硬度计等对Q235/316L异种钢焊接接头的显微结构和力学性能进行研究.结果表明:在Q235/316L异种钢焊接中,以A042作为堆焊焊材,A022作为填充焊材,可使异种钢焊接接头的组织和力学性能得到提高;经300℃×2h保温,空冷时效处理后的异种钢焊接接头的综合性能优于500℃×2h,700℃×2h保温,空冷时效处理及不进行时效处理的异种钢焊接接头.这是由于铁素体、珠光体的存在使其屈服强度和抗拉强度得到了较大提高,同时,氢的消除及逆转变奥氏体数量的增加也使焊缝区和316L HAZ冲击韧性有所提高.
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