电焊机2017，Vol.47Issue(3)：119-123,5.DOI:10.7512/j.issn.1001-2303.2017.03.24
马氏体不锈钢耐磨焊条及其性能
Martensitic stainless steel wear resistance electrode and its property
摘要
Abstract
Martensitic stainless steel exhibits a unique combination of high strength,good wear resistance and corrosion resistance.In this study,a kind of martensitic hardfacing electrode was developed,and overlayed on low carbon sheet steel Q235.The microstructure transformation of welded joint and the wear resistance of hardfacing alloy were investigated.It was proved that the electrode has a good welding performance.Surfacing layer metal and base metal are combined well,without cracks,etc.The microstructure of hardfacing alloy contains lath martensite,carbonitride and a small amount of retained austenite.Carbonitrides precipitate in martensite matrix and grain boundary with diffuse distribution,which has the effect of fine-grain strengthening and precipitation strengthening.Compared with the base metal,the hardness and the wear resistance of surfacing layer metal are increased significantly.The main wear mechanism is microscopic cutting and plastic deformation.关键词
马氏体不锈钢/耐磨焊条/金相组织/耐磨性能Key words
martensitic stainless steel/wear resistance electrode/microstructure/wear resistance分类
矿业与冶金引用本文复制引用
高源,杨可,许红祥,李嘉祺,包晔峰,蒋永锋..马氏体不锈钢耐磨焊条及其性能[J].电焊机,2017,47(3):119-123,5.基金项目
江苏省自然科学基金资助项目(BK20141156) （BK20141156）
中央高校基本科研业务费专项资金资助项目(2015B22614) （2015B22614）
河海大学大学生创新创业训练计划项目(2016102941187) （2016102941187）
