Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1502201 | Scripta Materialia | 2006 | 4 Pages |
Abstract
Temperature dependence of reversible magnetic shape memory effect and magnetization changes were studied in Ni49.7Mn29.1Ga21.2. The twinning stress, equivalent magnetic stress, switching field and maximum strain all increase with decreasing temperature. A 5–6% reversible strain is observed in the temperature range of 307–263 K and it sharply decreases to 1–2% at temperatures below 263 K. The main features of the observed behavior are explained using a simple energy-controlled model. Predictions of the model agree well with the experiment.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
L. Straka, O. Heczko, S.-P. Hannula,