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Title: Tensile properties of a novel W-NiTi heavy alloy with transforming matrix

Journal Article · · Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
 [1];  [1];  [2];  [1]
  1. China Univ. of Petroleum, Beijing (China)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)

A new class of W-NiTi heavy alloy was prepared by infiltration and vacuum hot pressing. The W-NiTi heavy alloy containing 90 wt% tungsten of particle size 2-8 gm exhibited excellent tensile properties of the tensile strength (1120 MPa) and elongation (7.8%). In situ synchrotron diffraction experiments provided clear evidence on the reorientation of B19'-NiTi martensite at the initial stage of the deformation and the martensitic transformation from B2-NiTi to B19'-NiTi martensite. Finally, the strain hardening of the heavy alloy resulted from the deformation of the martensite phase and the strain hardening of tungsten particles.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; National Natural Science Foundation of China (NSFC); National 973 Program of China
Grant/Contract Number:
AC02-06CH11357; 51231008; 2012CB619403; 11474362
OSTI ID:
1616295
Journal Information:
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing, Vol. 683, Issue C; ISSN 0921-5093
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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