摘要
采用高频电脉冲沉积技术在１Ｃｒ１８Ｎｉ９Ｔｉ不锈钢表面上沉积了厚度约为５０μｐ的ＭＡ９５６ ＯＤＳ合金纳米微晶涂层、涂层与基体之间呈现良好的冶金结合．在１０００℃静态空气中对 １Ｃｒ１８Ｎｉ９Ｔｉ试样与表面施加涂层试样进行了总计１００ｈ的恒温氧化实验．用ＡＦＭ，ＳＥＭ，ＥＤＸ和 ＸＲＤ分别对涂层和氧化后试样的形貌。成分和组成进行了观察和分析．结果显示：１Ｃｒ１８Ｎｉ９Ｔｉ 表面沉积ＭＡ９５６ＯＤＳ。合金纳米微晶涂层促进了Ｃｒ的选择氧化，提高了１Ｃｒ１８Ｎｉ９Ｔｉ表面氧化 膜的粘附性，改善了１Ｃｒ１８Ｎｉ９Ｔｉ抗高温氧化性能．
A micro-crystalline MA956 ODS alloy coating of about 50mm thick was developed on the 1Cr18Ni9Ti stainless steel by means of a high-frequency electro-spark deposition technique. The coating has a very fine grain size of about 100 nm and excellent metallurgical bonding with the substrate. Isothermal ox- idation in air at 1000℃ for 100 h shows that the micro-crystalline MA956 ODS alloy coating on 1Cr18Ni9Ti promoted the selective oxidation of Cr and also improved the scale spallation resistance dramatically, thus in- creased the oxidation resistance of 1Cr18Ni9Ti greatly.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2001年第3期265-270,共6页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金资助课题(No.59801002)
