Journal
SCRIPTA MATERIALIA
Volume 57, Issue 5, Pages 377-380Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2007.05.004
Keywords
creep; NiTi; shape-memory alloys (SMA)
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The compressive creep behavior of nickel-rich B2-NiTi (with 50-140 mu m grain size) was studied over the stress range 3-11 MPa and the temperature range 950-1100 degrees C. The stress exponent (n = 2.7) and activation energy (Q = 155kJ mol(-1)) are compared with a literature review of NiTi creep studies performed over lower temperature and/or higher stresses. Possible explanations for discrepancies between studies are discussed. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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