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Journal of Materials Engineering and Performance
Erschienen in: Journal of Materials Engineering and Performance 7/2017

09.06.2017

Effect of Aging Treatment on the Compressibility and Recovery of NiTi Shape Memory Alloys as Static Seals

verfasst von: Xiaofeng Lu, Gang Li, Luwei Liu, Xiaolei Zhu, Shan-Tung Tu

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 7/2017

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Abstract

The improvement of the compressibility and recovery of the gaskets can decrease the leakage occurrence in bolted flange connections. In this study, the effect of aging treatment on the compressibility and recovery of NiTi shape memory alloys is investigated as static seals together with thermal analysis. The experimental results indicate that different phase transformations of NiTi alloys are exhibited in the DSC curves during aging treatment. The recovery coefficient of NiTi alloys aged at 500 °C for 2 h is quite low accompanied with a large residual strain. With increasing aging time at the aging temperature of 400 °C, the residual strain and area of hysteresis loop of NiTi alloys are both increased, whereas the recovery coefficient is decreased. Since the deformation associates the phase transformation behavior, aging treatment could improve the compressibility and recovery of NiTi alloys as static seals.
Vorheriger Artikel Effects of Ultra-Fast Cooling After Hot Rolling and Intercritical Treatment on Microstructure and Cryogenic Toughness of 3.5%Ni Steel
Nächster Artikel Modeling and Analysis of Deformation for Spiral Bevel Gear in Die Quenching Based on the Hardenability Variation

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Metadaten
Titel
Effect of Aging Treatment on the Compressibility and Recovery of NiTi Shape Memory Alloys as Static Seals
verfasst von
Xiaofeng Lu
Gang Li
Luwei Liu
Xiaolei Zhu
Shan-Tung Tu
Publikationsdatum
09.06.2017
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 7/2017
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-017-2762-z

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