摘要
采用硝酸-硫酸铁腐蚀试验，扫描电镜（SEM）、电子探针（EPM）等方法研究了气相扩渗稀土（La、Ce）对1Cr18Ni9钢晶间腐蚀性能的影响．结果表明，扩渗后倒在面几乎不存在贫Cr区，耐晶同腐蚀性能明显改善，超过经稳定化处理的1Cr18Ni9Ti钢水平．
The effect of rare-earths (La, Ce) permeated in gas-plase on the intercrystallinecorrosiveness of steel 1Cr18Ni9 was investigated by the corrosion test such as sulfuric acid andsulfuric acidferric sulfate, scanning electron microscope(SEM) and electronic probe(EPMA). Theresults shown that, little lean chrome region exists in the surface of steel 1Cr18Ni9 treated byrarecarths, and its intercrystalline corrosiveness improves greatly, which exceeds that of stabilized1Cr18Ni9 steel.
出处
《材料科学与工艺》
EI
CAS
CSCD
1998年第4期85-88,共4页
Materials Science and Technology
关键词
稀土
气相扩渗
晶间腐蚀
不锈钢
rare-earths
gas-phase permeation
1Cr18Ni9 steel
intercrystalline corrosiveness
