电焊机2012，Vol.42Issue(2)：16-19,4.
马氏体不锈钢堆焊层组织和耐冲蚀性能
Research on the deposited metal microstructure and erosion-resistance of martensitic stainless steel
摘要
Abstract
By using martensitic stainless steel 2Crl3 and improved lCrl3 which alloyed V、Ti、Nb、N to building-up, influence of microalloy elements and heat treatment on microstructure and erosion-resistance of martensitic stainless steel deposited metal were analyzed.The results showed that grain of deposited metal was found because large amount of small dispersed stable chemical compounds were formed by microalloy elements V.Ti.Nb with carbon/nitrogen in early stage of austenite nucleation.After austenitic grains were solidified,precipitation strengthening was involved.This kind of strengthening was enhanced because part of carbide precipitated from martensite laths after tempering,at same time martensite toughness was improved as carbon in martensite decreased. Ultimately high strength and fine toughness were gained for deposited metal.关键词
马氏体不锈钢/堆焊层/细晶强化/沉淀强化/耐冲蚀性Key words
martensitic stainless steel/deposited metal/fine-grain strengthening/precipitation strengthening/erosion-resistance分类
矿业与冶金引用本文复制引用
顾瑞超,包晔峰,杨可..马氏体不锈钢堆焊层组织和耐冲蚀性能[J].电焊机,2012,42(2):16-19,4.基金项目
国家自然科学基金资助项日(51101050) （51101050）
江苏省自然科学基金资助项目(BK2011257) （BK2011257）
江苏科技大学先进焊接技术省级重点实验室开放研究基金资助项目 （）
