Improvement of shape memory characteristics by precipitation-hardening of TiPdNi alloys

Autor:	E. Okunishi, Kengo Mitose, Kazuhiro Otsuka, S. Shimizu, S. Tanaka, Ya Xu
Rok vydání:	1998
Předmět:	Materials science Precipitation (chemistry) Mechanical Engineering Metallurgy Titanium alloy Shape-memory alloy Slip (materials science) Condensed Matter Physics Microstructure Precipitation hardening Differential scanning calorimetry Mechanics of Materials Ultimate tensile strength General Materials Science
Zdroj:	Materials Letters. 34:23-29
ISSN:	0167-577X
DOI:	10.1016/s0167-577x(97)00134-1
Popis:	An attempt to improve the shape memory characteristics by precipitation-hardening was made for non-equiatomic TiPdNi high temperature shape memory alloys (Ti:(Ni, Pd) ≠ 50:50) by differential scanning calorimetry, high temperature tensile tests and transmission electron microscopy. It was found that homogeneously distributed fine precipitates can be produced by ageing treatment at the proper temperature of 773 K for Ti50.6Pd30Ni19.4 alloys. These precipitates increase the critical stress for slip and improve the shape memory characteristics substantially at high temperatures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ae51da9239e49973b8ab496fb8ba9d19 https://doi.org/10.1016/s0167-577x(97)00134-1 Zobrazit plný text záznamu Full Text from ScienceDirect