Content area
Abstract
Multiple-step martensitic transformations of an aged Ni51Ti49 single crystal using calorimetric method were investigated. Results show that for short aging times (10–45 min) multiple-step martensitic transformations on cooling occur in two steps. Applying intermediate aging times (1.25–4 h) results in three steps and long aging times (more than 8 h) lead to two-step martensitic transformations again. This behavior has not been recognized in NiTi single crystals in literatures. It can be related to the heterogeneity of composition and stress fields around Ni4Ti3 precipitates.
Details
Title
Multiple-step martensitic transformations in the Ni51Ti49 single crystal
Author
Khalil-Allafi, Jafar 1 ; Amin-Ahmadi, Behnam 1
1 Research Center for Advance Materials, Faculty of Materials Engineering, Sahand University of Technology, Tabriz, Iran
1 Research Center for Advance Materials, Faculty of Materials Engineering, Sahand University of Technology, Tabriz, Iran
Pages
6440-6445
Publication year
2010
Publication date
Dec 2010
ISSN
00222461
e-ISSN
15734803
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2259722427
Copyright
Journal of Materials Science is a copyright of Springer, (2010). All Rights Reserved.