Fundamental Development on Utilizing the R-phase Transformation in NiTi Shape Memory Alloys

Show simple item record Wang, Xiebin Kustov Dolgov, Sergey Verlinden, Bert Humbeeck, Jan Van 2018-11-12T11:42:56Z
dc.description.abstract [eng]In near equiatomic NiTi alloys, the reversible thermoelastic transformation between B2-structured austenite phase and the R-phase is attracting increasing interest for practical applications. However, the following two issues limit the widespread utilization of the R-phase transformation: (1) there is no effective approach to control the R-phase transformation temperatures; (2) it is not easy to largely separate the temperature domain of the R-phase and the B190 martensite phase transformation, especially in the presence of an external force. This article reviews concisely the work of the present authors on solving the above two problems. The effect of grain size on the aging microstructure and related transformation behavior is first discussed. Inspired by these findings, an approach to solve the above two problems has been developed by introducing nanoscaled Ni4Ti3 precipitates in the samples with micronsized grains. The performance of alloys associated with the R-phase transformation, which shows controllable transformation temperatures, is summarized
dc.format application/pdf
dc.relation.ispartof Shape Memory and Superelasticity, 2015, vol. 1, p. 231-239
dc.rights , 2015
dc.subject.classification 53 - Física
dc.subject.other 53 - Physics
dc.title Fundamental Development on Utilizing the R-phase Transformation in NiTi Shape Memory Alloys
dc.type info:eu-repo/semantics/article 2018-11-12T11:42:56Z info:eu-repo/date/embargoEnd/2075-01-01
dc.embargo 2075-01-01
dc.rights.accessRights info:eu-repo/semantics/embargoedAccess

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