High-frequency electropulse deposition of microcrystallized MGH754 ODS alloy coatings

被引：0
|
作者：
Hongmei Pang
Huibin Qi
Yedong He
Deren Wang
Zhengwei Li
机构：
[1] Beijing University of Science and Technology,Corrosion, Erosion and Surface Technology Laboratory, Corrosion and Protection Center
来源：
Science in China Series B: Chemistry | 2000年 / 43卷
关键词：
high-frequency; electro-spark deposition; microcrystalline ODS alloy coatings; oxidation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A simple but more efficient technique—high-frequency electropulse deposition—was developed to produce microcrystallized MGH754 ODS alloy coatings on the 1Cr18Ni9Ti stainless steel substrate. The coating has a very fine grain size of 30–300 nm and metallurgical bonding with the substrate. Isothermal oxidation in air at 1 000°C for 100 h shows that micro-crystallisation and dispersed oxide particles promote the selective oxidation of Cr greatly to form a protective and continuous Cr2O3 scale and also improve the scale spallation resistance dramatically, thus increasing the oxidation resistance of 1Cr18Ni9Ti.
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页码：540 / 546
页数：6
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