材料工程Issue(8)：14-18,5.
DD6单高温合金热处理过程中的再结晶组织演化
Microstructural Evolution of Recrystallization DuringHeat Treatment in DD6 Single Crystal Superalloy
摘要
Abstract
Microstructural evolution of recrystallization during heat treatment in DD6 single crystal su-peralloy were investigated. The results showed that during pre-treatment at the temperature up to as-cast γ' phase solvus, no recrystallization occurred, while after solution treatment, rapid recrystallization occurred. During preheat treatment above the temperature, recrystallization occurred. The recrystallization grain boundary was thin and composed of bigger γ' phase. Compared with the micro-structure after solution treatment, the recrystallization depth after aging treatment had no obvious change. During aging treatment, grain boundary turned into wider cellular structure and some granular M6C carbide precipitated from grain boundary.关键词
再结晶/热处理/DD6/单晶高温合金Key words
recrystallization/ heat treatment /DD6/ single crystal superalloy分类
矿业与冶金引用本文复制引用
曲彦平,刘丽荣,祖国庆,金涛,胡壮麒..DD6单高温合金热处理过程中的再结晶组织演化[J].材料工程,2011,(8):14-18,5.基金项目
国家自然科学基金资助项目(50901046) （50901046）
