Superelastic memory effect in Ti74Nb26 shape memory alloy

abstract

• Ti74Nb26 shape memory alloy, superelastically loaded to increasingly larger tensile strains, exhibits superelastic memory. This behavior is closely related to superelastic cycling history, and its origin is attributed to a relative difference in martensite stability caused by the internal stress field created, possibly by point defect mechanisms, from partial superelastic cycles. In addition, superelastic memory appears to be reversible, as its effect gradually diminishes when specimen is allowed to rest under stress-free conditions in between superelastic cycles at room temperature. 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

authors

• Karaman, Ibrahim

published proceedings

• SCRIPTA MATERIALIA

author list (cited authors)

• Ma, J., Karaman, I., & Chumlyakov, Y. I.

citation count

• 5

complete list of authors

• Ma, J||Karaman, I||Chumlyakov, YI

publication date

• August 2010

publisher

• Elsevier  Publisher

published in

• Scripta Materialia  Journal

keywords

• Cyclic Behavior
• Martensitic Transformation
• Shape Memory Alloys
• Superelasticity

Digital Object Identifier (DOI)

• 10.1016/j.scriptamat.2010.03.037

start page

• 265

end page

• 268

volume

• 63

issue

• 3

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.scriptamat.2010.03.037