期刊
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
卷 50A, 期 11, 页码 5234-5241出版社
SPRINGER
DOI: 10.1007/s11661-019-05429-0
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资金
- EPSRC/Rolls-Royce Strategic Partnership [EP/H022309/1, EP/H500375/1, EP/M005607/1]
- EPSRC [EP/M005607/1] Funding Source: UKRI
Synchrotron X-ray imaging has been used to examine in situ the deformation of dendrites that takes place during the solidification of a nickel-based superalloy. By combining absorption and diffraction contrast imaging, deformation events could be classified by their localization and permanence. In particular, a deformation mechanism arising from thermal contraction in a temperature gradient was elucidated through digital image correlation. It was concluded that this mechanism may explain the small misorientations typically observed in single crystal castings. (C) The Author(s) 2019
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