期刊
SCRIPTA MATERIALIA
卷 101, 期 -, 页码 64-67出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2015.01.020
关键词
SMAs; NiTi alloys; Fracture mechanics; Stress induced martensite; Nanoindentation
类别
资金
- MaTeRiA Laboratory (University of Calabria)
A novel approach, based on nanoindentation experiments, for analysing temperature dependent local phase transformations in shape memory alloys is proposed. The method was used to analyse cracked specimens and the effects of temperature on local crack-tip transformations were analysed by isothermal nanoindentation tests. Furthermore, experimental results were compared with predictions of a recent analytical model and good agreements were observed. It was demonstrated that the proposed approach can be advantageously used instead of more complex microstructural investigations, like X-ray microdiffraction. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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