Sub-solvus Cellular Recrystallization and P Phase Formation in a Single-Crystal Superalloy Containing Re
来源期刊：Acta Metallurgica Sinica2015年第1期
论文作者：Long-Chao Zhuo Ming Huang Ji-Chun Xiong Jia-Rong Li Jing Zhu
文章页码：72 - 76
摘 要：Sub-solvus recrystallization behavior of a second-generation single-crystal superalloy has been studied by transmission electron microcopy and scanning transmission electron microcopy. Surface local stress facilitated cellular recrystallization accompanied with formation of twin structure and TCP phase of P during annealing at sub-solvus temperature of 1,100 °C. The precipitation of P phase is considered to be attributed to the coarsening of c0 phase in the recrystallized aggregates which lower the activation energy for atomic migration.
Long-Chao Zhuo1，Ming Huang1，Ji-Chun Xiong2，Jia-Rong Li2，Jing Zhu1
1. The State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, National Center for Electron Microscopy in Beijing, Tsinghua University2. Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials
摘 要：Sub-solvus recrystallization behavior of a second-generation single-crystal superalloy has been studied by transmission electron microcopy and scanning transmission electron microcopy. Surface local stress facilitated cellular recrystallization accompanied with formation of twin structure and TCP phase of P during annealing at sub-solvus temperature of 1,100 °C. The precipitation of P phase is considered to be attributed to the coarsening of c0 phase in the recrystallized aggregates which lower the activation energy for atomic migration.
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