Journal
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
Volume 49A, Issue 10, Pages 4413-4418Publisher
SPRINGER
DOI: 10.1007/s11661-018-4806-x
Keywords
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Funding
- National Natural Science Foundation of China [51622401, 51628402]
- National Key Research and Development Program of China [2016YFB0300602]
- Newton Advanced Fellowship by Royal Society [RP12G0414]
- Research Fund for Central Universities [N172502004]
- Global Talents Recruitment Program
- State Key Laboratory of Solidification Processing of Northwestern Polytechnical University [SKLSP201805]
- Jiangyin Xingcheng Special Steel Works Co., Ltd.
- Institute of Metal Research, Chinese Academy of Sciences
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In the present work, the effect of simulated postweld heat treatment (SPWHT) on the microstructure of 1.25Cr-0.5Mo steel was systematically studied. Microstructure is mainly composed of ferrites and carbides after quenching-tempering and SPWHT. Outstanding features of carbides, including distribution, composition, morphology, and size, are identified by means of an electron-probe microanalyzer and a transmission electron microscope. The results show that the carbides coarsen and gather along grain boundaries and M7C3 transforms into M23C6 in situ. (C) The Minerals, Metals & Materials Society and ASM International 2018
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