摘要
对常规铸态凝固和快速凝固高温合金中 MC 型碳化物的观察、分析表明,快速凝固后碳化物的形态、尺寸、成分和分布都发生了明显变化,这些变化对合金的高温力学性能有可能产生重要影响。
The carbides in a conventionally cast and rapidly solidified IN—100 typenickel-based superalloy were investigated by TEM,SEM,EDX and metallography.Theresults indicated that the obvious changes in the morphology,size,composition and distri-bution of carbides appeared in the alloy after rapid solidification.It is possible that thechange in MC-type carbides affects strongly the mechanical properties of a superalloy athigh temperature.
