CAJ | 학술논문

分别采用扫描电镜(SEM)、X射线衍射(XRD)、动电位极化技术及零内阻安培表方法研究爆炸焊接316L不锈钢接头的显微组织形貌、物相、点蚀及电偶腐蚀行为.结果表明,316L不锈钢侧焊缝金属存在严重的组织形变和金属间化合物相,且相对于基体试样,316L不锈钢侧焊缝和熔合区产生了更多的δ铁素体相,这些因素导致焊接后的316L不锈钢耐点蚀和电偶腐蚀性能降低.
분별채용소묘전경(SEM)、X사선연사(XRD)、동전위겁화기술급령내조안배표방법연구폭작한접316L불수강접두적현미조직형모、물상、점식급전우부식행위.결과표명,316L불수강측한봉금속존재엄중적조직형변화금속간화합물상,차상대우기체시양,316L불수강측한봉화용합구산생료경다적δ철소체상,저사인소도치한접후적316L불수강내점식화전우부식성능강저.
The morphology, phase, pitting corrosion behaviors and galvanic corrosion resistance behavior of the welded joint of 316L stainless steel and Ti(TA2) clad plate were studied by scanning electron microcopy (SEM), X-ray diffraction (XRD), zero-internal resistance ammeter and potentiodynamic polarization technique. The results show that the welded 316L presents severe deformation and has intermetallic phase; moreover, more δ-ferrite phase emerges at the welded seam and fusion area near 316L side. All these factors lead to the decrease of pitting corrosion resistance and galvanic corrosion resistance of the welded 316L.