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Title: Effect of temperature on the wear behavior of NiTi shape memory alloy
Authors: Yan, Lina
Liu, Yong
Keywords: DRNTU::Engineering::Materials::Material testing and characterization
Issue Date: 2014
Source: Yan, L., & Liu, Y. (2014). Effect of temperature on the wear behavior of NiTi shape memory alloy. Journal of materials research, 30(2), 186-196.
Series/Report no.: Journal of materials research
Abstract: This article aims to provide a fundamental understanding of the deformation mechanisms of NiTi shape memory alloy (SMA) during the wear process at different temperatures when different microstructures are present. Three temperature regimes were selected namely, T < Mf, As < T < Af, and T > Af, where fully martensitic, martensite co-existing with austenite, and fully austenitic microstructures were formed, respectively. When T < Mf, it was observed that the coefficient of friction had decreased initially and thereafter stabilized at a lower value with increasing wear cycles. More decrease was found when the temperature was near to As. Furthermore, when tested above Af, the coefficient of friction had decreased more significantly under higher load. Difference in the trend of coefficient of friction at different temperatures is originated from the different deformation mechanisms involved in the wear process, particularly the martensite detwinning process, the stress-induced phase transformation process, and the plastic deformation of martensite.
ISSN: 0884-2914
DOI: 10.1557/jmr.2014.381
Rights: © 2014 Materials Research Society. This paper was published in Journal of Materials Research and is made available as an electronic reprint (preprint) with permission of Materials Research Society. The paper can be found at the following official DOI: [].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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