M5B3 Boride at the Grain Boundary of a Nickel-based Superalloy
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2016年第3期
论文作者：Beining Du Zhiwu Shi Jinxia Yang Zhaokuang Chu Chuanyong Cui Xiaofeng Sun Liyuan Sheng Yufeng Zheng
文章页码：265 - 270
摘 要：The grain boundary microstructures of a heat-treated Ni-based cast superalloy IN792 were investigated. The results show that M5B3 boride precipitates at the grain boundary. A special orientation relationship between M5B3 phase and the matrix at one side of the grain boundary is found. At the same time, two M5B3 borides with different orientations could co-exist in a single M5B3 particle as an intergrowth besides existing alone, thus forming orientation relationship between the two M5B3 phases and matrix. This phenomenon could be attributed to the special orientation relationship between M5B3 phase and the matrix.
Beining Du1,2,3，Zhiwu Shi1，Jinxia Yang1，Zhaokuang Chu1，Chuanyong Cui1，Xiaofeng Sun1，Liyuan Sheng2,3，Yufeng Zheng2,3
1. Institute of Metal Research, Chinese Academy of Sciences2. Peking University3. PKU-HKUST Shen Zhen-Hong Kong Institution
摘 要：The grain boundary microstructures of a heat-treated Ni-based cast superalloy IN792 were investigated. The results show that M5B3 boride precipitates at the grain boundary. A special orientation relationship between M5B3 phase and the matrix at one side of the grain boundary is found. At the same time, two M5B3 borides with different orientations could co-exist in a single M5B3 particle as an intergrowth besides existing alone, thus forming orientation relationship between the two M5B3 phases and matrix. This phenomenon could be attributed to the special orientation relationship between M5B3 phase and the matrix.
关键词：
