【摘要】 新研制的Cr20Mn10Ni4Si3N抗咬耐蚀不锈钢,除了具有Cr-Ni型不锈钢的特点外,还克服了Cr-Ni型不锈钢所不能解决的问题——咬死(粘着磨损)。本文探索了Cr20Mn10Ni4Si3N钢抗咬机理,与1Crl8Ni9Ti钢作比较,并探讨了此新钢种中Mn、Si含量与抗咬性能的关系。用X光电子能谱(ESCA)和俄歇电子能谱(AES)结合氩离子溅射刻蚀技术进行测定,证实此钢种表层有一层相当厚的氧化锰和硅酸盐表面膜,而一般18-8型Cr-Ni不锈钢则不具有这种膜。一定含量的Mn、Si在钢表面形成氧化物膜是此钢种具有良好抗咬性能的原因。更多还原

【Abstract】 Recently developed stainless steel Cr₂₀Mn₁₀Ni₄Si₃N, in addition to its gocd ccrrosion resi-stance characteristic of Cr-Ni stainless steel, has excellent galling risistance which Cr-Ni stainless steel lacks. This paper investigated the mechanism of galling resistance of Cr₂₀Mn₁₀Ni₄Si₃N. This steel was compared with 1Cr₁₈Ni₉ Ti in galling resisting tests, and the relation betwcen Mn and Si contents of Cr₂₀Mn₁₀Ni₄Si₃ N and its galling resistance was discussed. The results of ESCA and AES with argon ion sputter-etching confirmed that there was a quite thick film of Mn oxide and silicates on the surface of steel Cr₂₀Mn₁₀Ni₄Si₃ N which was not found on the surface of steel 1Cr₁₈Ni₉Ti. It was also shown in experiments that the excellent galiing resi-stance of steel Cr₂₀Mn₁₀Ni₄Si₃N could be attributed to the formation of oxides film on the surface by certain amount of Si and Mn.更多还原