Study on Texture and Microstructure of Co During Phase Transformation
WANG Shuming1, ZHANG Hua2, ZUO Yuting1, CAO Ruijun3
1 Guobiao (Beijing) Testing & Certification Co., Ltd, Beijing 100088, China 2 China Nonferrous Metals Industry Associaton Recycling Metal Branch, Beijing 100037, China 3 General Research Institute for Nonferrous Metals, Beijing 650106, China
Abstract: The phase transformation temperature, microstructure and texturein pure Co block were analyzed using in situ X-ray diffraction (XRD), scanning electron microscope (SEM) and electron backscattering diffraction(EBSD) in the paper. The results showed that, As was about 400 ℃, Af was about 500 ℃, Ms was about 350 ℃, and Mf was below room temperature. The more undercooling degree and longer duration were needed during α→β phase transformation could be deduced. The main reason was the thermal enthalpy could not satisfy the interface and strain energy. Lamellar structure parallel to {0002}β formed as the stacking fault and anisotropy line strain. Meanwhile, the 70°〈1120〉 lath and 90°〈1120〉 wedge twin structure were born in order to eliminate the 0.6% bulk strain. The macro texture weakened correspondingly as more variants were occurred and twin structure was born.
王书明, 张华, 左玉婷, 曹瑞军. 钴的相变织构及微观结构研究[J]. 材料导报, 2021, 35(Z1): 378-380.
WANG Shuming, ZHANG Hua, ZUO Yuting, CAO Ruijun. Study on Texture and Microstructure of Co During Phase Transformation. Materials Reports, 2021, 35(Z1): 378-380.
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2021, Vol. 35 
