Quantitative X-ray Phase Analysis in GH220 Alloy with High Contents of Molybdenum and Tungsten

The amount of four phase in GH220 alloy with high contents of Molyb denum and Tungsten at different heat treatment was determined by guantit-ative X-ray phase analysis.
X-ray diffraction method has identified the M6C and μ phase,those are Very difficult to determine by chemical phase analysis.
The result of thus research has Provided the basic data fo define the optimum Content of Wand Mo in GH220 alloy.