Deformation behavior of Nb nanowires in TiNiCu shape memory alloy matrix
- The Univ. of Western Australia (Australia); China Univ. of Petroleum, Beijing (China)
- The Univ. of Western Australia (Australia)
- China Univ. of Petroleum, Beijing (China)
- Argonne National Lab. (ANL), Argonne, IL (United States)
An in-situ nanowire Nb/TiNiCu composite is fabricated based on the concept of strain under-matching between a phase transforming matrix and high strength nanomaterials. The deformation behavior of the Nb nanowire was investigated by means of in-situ synchrotron X-ray diffraction when the TiNiCu matrix underwent different deformation modes. The maximum lattice strain of the Nb nanowires was about 5% when the matrix deformed via martensitic transformation or 1% when deforming plastically by dislocation slip. As a result, the Nb nanowires showed a lattice strain of 3.5% when the matrix deformed in the mixed mode of plastic deformation and martensitic transformation, which means that the occurrence of plastic deformation does not impede load transfer from the matrix to the nanowires.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-06CH11357; DP140103805; 51231008; 51401240; 11474362; 2012CB619403; 313055; YETP0686
- OSTI ID:
- 1245147
- Alternate ID(s):
- OSTI ID: 1245148; OSTI ID: 1254544
- Journal Information:
- Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing, Vol. 646, Issue C; ISSN 0921-5093
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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