稀土对1Cr18Ni9钢腐蚀性能及组织状态影响  

Influence of Rare earths Gas phase Permeation Treatment on the Surface Corrosion Resistance of 1Cr18Ni9 Steel

作　　者：徐雳[1] 石连升[1] 王锐[1] 

机构地区：[1]哈尔滨理工大学现代成型技术研究所,哈尔滨150076

出　　处：《高技术通讯》2001年第8期102-104,共3页Chinese High Technology Letters

基　　金：863计划 (863 715 0 0 1 0 10 0 );哈尔滨市学科后备带头人基金资助项目 (99712 180 0 5 ) ;G19990 3 3 0

摘　　要：利用化学法对 1Cr18Ni9钢表面扩渗稀土 ,通过X 射线衍射分析了试样表面的组织状态。结果表明 ,1Cr18Ni9钢渗入稀土后 ,表面有CeFe7和LaO新相产生 ,并引起奥氏体含量降低 ,铁素体含量增加 ,改变了试样表面的微观结构。阳极极化曲线的测定结果表明 ,扩渗稀土后的 1Cr18Ni9钢试样耐腐蚀性能超过了稳定化处理的Rare earths was permeated on the surface of 1Cr18Ni9Ti steel by the chemical method. Then the composition and structure of the surface were investigated by the X ray diffraction. The results showed that after the treatment some new phases were formed, and austenite contents increased and ferrite contents decreased on the surface of 1Cr18Ni9 steel; Anode polarization test confirmed that its corrosion resistance exceeded that of stabilized 1Cr18Ni9Ti steel.

关 键 词：稀土 1CR18NI9钢 组织状态 腐蚀性能 表面扩渗 奥氏体 微观结构 

分 类 号：TG142.3[一般工业技术—材料科学与工程]