Maintaining adhesion of protective Al2O3 scales

被引：0
作者：
James Smialek
机构：
[1] NASA Glenn Research Center,
来源：
JOM | 2000年 / 52卷
关键词：
NiAl; Reactive Element; Alumina Scale; Aluminide Coating; Sulfur Segregation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Maintaining good adhesion of alumina scales to the surface of heat-resistant alloys is crucial for long-term cyclic oxidation resistance. Traditionally, this is accomplished by doping the alloy with about 0.1% reactive elements. More recently, excellent adhesion has been produced without reactive elements by reducing the sulfur impurity level to less than 1 ppm. Research opportunities exist in the fundamentals of sulfur segregation, thermodynamics, and interfacial bonding.
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页码：22 / 25
页数：3
相关论文
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