摘要
采用电镜技术对加镁ＧＨ２０３６合金晶界相进行了研究。结果表明，适量镁对晶界ＭＣ等相有细化、球化作用。还可促进块状ＭＣ向颗粒Ｍ２３Ｃ６转化，使合金晶界强化，从而显著提高持久寿命。
Both TEM and SEM were employed to study the grain boundaries of GH2036 super alloy. The results show that proper magnesium addition make MC in the boundary fine and spheroidal. The microalloying, which also improves the transformation of coarse MC into fine M 23 C 6 particle,strengthens the grain boundary and obviously improves the endurance life of the superalloy.
出处
《材料科学与工艺》
EI
CAS
CSCD
1997年第1期133-135,共3页
Materials Science and Technology
关键词
镁微合金化
高温合金
晶界沉淀
电镜技术
magnesium microalloying
high temperature alloy
precipitates in the grain boundary
TEM and SEM technique
