Maintaining adhesion of protective Al2O3 scales

被引：31
作者：
Smialek, JL [1 ]
机构：
[1] NASA, Lewis Field, Cleveland, OH 44135 USA
来源：
JOM-JOURNAL OF THE MINERALS METALS & MATERIALS SOCIETY | 2000年 / 52卷 / 01期
关键词：
D O I：
10.1007/s11837-000-0110-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
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 fundamentals of sulfur segregation, thermodynamics, and interfacial bonding.
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页码：22 / 25
页数：4
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