期刊
INTERMETALLICS
卷 125, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2020.106889
关键词
Neutron diffraction; Negative thermal expansion; Coefficient of thermal expansion; TiNiHf; Shape memory alloys; Invar
资金
- National Key R&D Program of China [2017YFE0123500]
- National Natural Science Foundation of China [51971072]
- Fundamental Research Funds for the Central University [3072020CF1003]
- Russian Foundation for Basic Research [18-02-00325]
Thermal expansion of martensite in Ti29.7Ni50.3Hf20 alloy was investigated by in situ neutron diffraction. It is found that the martensite exhibits a strong anisotropy in thermal expansion. The principal crystallographic axes and the coefficients of thermal expansion were determined.
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