摘要
本文探讨了采用粉末预热处理方法改善合金组织、提高合金性能及其稳定性的可能性。结果表明：采用粉末预热处理方法明显改善了热等静压（ＨＩＰ）致密材料中原始颗粒边界与晶界上碳化物的聚集程度，并且增加了合金中γ’相的含量而不改变合金的晶粒度；经过１１００℃预热处理的粉末，再经ＨＩＰ及热处理后，其材料的塑性与持久寿命得到明显提高。
The possibility of the improvement of microstructure,properties and stability of the FGH95 P/M alloy by using powders preheating has been explored.The results showthat it can reduce the degree of carbides segregation on Prior Particle Boundary(PPB)andgrain boundary, increase the volume fraction but does not change the grain size by using preheat treatment.The FGH95 alloy has higher plasticity and longer life time withpowders being preheated at 1100
出处
《粉末冶金工业》
CAS
1999年第3期23-27,共5页
Powder Metallurgy Industry
