期刊
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
卷 9, 期 6, 页码 15185-15190出版社
ELSEVIER
DOI: 10.1016/j.jmrt.2020.11.004
关键词
Superalloy; Selective laser melting; Fracture behavior; In-situ SEM observation
资金
- National Natural Science Foundation of China [51821001, 51871147, 51704195]
- National Science and Technology Major Project [2017-VI-0013-0085]
To characterize the fracture behaviors of the selective laser melting (SLM) processed GTD222 superalloy, in-situ scanning electron microscopy (SEM) observation was conducted during 760 degrees C tensile deformation. The results showed that the microcracks were mainly nucleated at the grain boundary and then propagating into the grain interior. (C) 2020 The Authors. Published by Elsevier B.V.
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