Article ID Journal Published Year Pages File Type
1580819 Materials Science and Engineering: A 2010 6 Pages PDF
Abstract

The influence of phosphorus on the microstructure and stress-rupture properties of IN783 alloy, the newly developed low thermal expansion superalloy, was investigated. Addition of phosphorus markedly promotes the precipitation of β-NiAl phase which improves the intergranular oxidation resistance of high P-doped alloys. However, phosphorus segregation deteriorates the interfacial cohesion of intergranular β/γ matrix and induces many intergranular cracks. Consequently, the stress-rupture life is reduced in high P-doped alloys.

Related Topics
Physical Sciences and Engineering Materials Science Materials Science (General)
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