采用X射线(XRD)、扫描电镜(SEM)、光学显微镜(OM)、动电位极化及浸泡腐蚀技术,研究了316L爆炸焊接前后的点蚀行为.XRD分析表明,相对于基体试样,316L侧焊缝和熔合区产生了第二相及δ铁素体相;动电位极化和浸泡腐蚀实验表明,316L基体及焊缝金属都表现出钝性,但焊接后的316L耐点蚀性降低,焊缝和熔合区被优先腐蚀.
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