| Issue |
J. Phys. IV France
Volume 05, Number C8, Décembre 1995
International Conference on Martensitic Transformations – ICOMAT 95
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|---|---|---|
| Page(s) | C8-527 - C8-530 | |
| DOI | https://doi.org/10.1051/jp4:1995881 | |
ICOMAT 95
J. Phys. IV France 05 (1995) C8-527-C8-530
DOI: 10.1051/jp4:1995881
The Effect of Thermomechanical Training on the Microstructures of Fe-Mn-Si Shape Memory Alloy
D.F. Wang1, Y.R. Chen2, F.Y. Gong2, D.Z. Liu1 and W.X. Liu11 Analysis Centre, Tianjin University, Tianjin 300072, P.R. China
2 Department of Materials Science and Engineering, Tianjin University, Tianjin 300072, P.R. China
Abstract
The shape memory effect and the microstructures of Fe-30Mn-6Si(wt%) alloy subjected to
different training treatments have been studied in present paper. It has been found that the recovery strain increases significantly through the training treatment of 4% tensile pre-strain followed by recovery annealing at 700°C (treatment A) while the recovery strain decreases after the training treatment of 4% tensile pre-strain plus recovery annealing at 300 °C (treatment B). The microstructures of the alloy after the above training treatments were investigated by TEM. It was found that the treatment A favoured the formation of oriented dislocations and stacking faults which results in the improvement of shape memory effect in Fe-Mn-Si alloy.
© EDP Sciences 1995