Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1502686 | Scripta Materialia | 2009 | 4 Pages |
Abstract
A sharp drop in hysteresis is observed for shape memory alloys satisfying the compatibility condition between austenite and martensite, i.e. λ2 = 1, where λ2 is the middle eigenvalue of the transformation strain matrix. The present work investigates the evolution of microstructure by transmission electron microscopy as the composition of the Ti50Ni50−xPdx system is systemically tuned to achieve the condition λ2 = 1. Changes in morphology, twinning density and twinning modes are reported along with twinless martensite and exact austenite–martensite interfaces.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Rémi Delville, Dominique Schryvers, Zhiyong Zhang, Richard D. James,