物理学报2012，Vol.61Issue(20)：508-515,8.
喷射成型FGH4095静态再结晶组织特征
Microstructure of spray-formed FGH4095 after static recrystallization
摘要
Abstract
For the study of solution heat treatment characteristic of spray-formed FGH4095 after near iso thermal forging, the superalloy specimens, which have been hot isostatically pressed (HIPed) and forged with a 75% compression ratio, are solution heat treated at 1120 ℃, 1140 ℃ and 1160 ℃ for 10, 20 and 40 min respectively, and oil quenched. The characteristics of static recrystallization process including grain size and precipitated phase after heat treatment are discussed. The results show that the temperature of solution heattreatment has a great influence on the microstructure. In heat treatment at 1120 ℃ the recrystallization is slow, and the necklace structure is formed due to the localized incomplete recrystallization; at 1140 ℃ for 40 min, the static recrystallization is basically completed, the average grain size is about 8 μm; at 1160 ℃, the recrystallization is finished in 10 min, and the grains grow up to about 18 μm.关键词
再结晶/高温合金/固溶处理/喷射成型Key words
recrystallization/superalloys/solution heat treatment/spray forming分类
矿业与冶金引用本文复制引用
张宇,葛昌纯,沈卫平,邱成杰..喷射成型FGH4095静态再结晶组织特征[J].物理学报,2012,61(20):508-515,8.基金项目
国家自然科学基金,(批准号：50974016)资助的课题. （批准号：50974016）
