Evaluation of the Shape Memory Effect by Micro-Compression Testing of Single Crystalline Ti-27Nb Ni-Free Alloy.

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2019
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Abstract
In this work, micro-compression tests are performed at various temperatures with Ti-27Nb (at.%) single crystalline pillars to investigate anisotropic deformation behavior, including the shape memory effect. In non-tapered single-crystal pillars with loading directions parallel to [001], [011], and [111], transformation strain and stress show orientation dependence. [001]-oriented micropillars with aspect ratios of 2 and 1.5 demonstrate temperature-dependent transformation stress during micro-compression at various temperatures. Although more stress is required to induce martensite transformation in the pillar with the lower aspect ratio, the temperature dependence of ~1.8 MPa/K observed in both pillars is in good agreement with that of bulk Ti-27Nb.
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nagoshi2019evaluationmaterials Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Nagoshi, Takashi;Yasuda, Takahisa;Otaki, Nao;Tahara, Masaki;Hosoda, Hideki;Sone, Masato;
Journal Materials (Basel, Switzerland)
Year 2019
DOI
E110
URL
Keywords
biomedical alloy shape memory alloy single crystal temperature variable micro-compression test gas separation gas transport membranes nanoporous polymers supramolecular structure

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