Authors: Irfan Kaya Hirobumi Tobe Haluk Ersin Karaca Emre Acar Yuriy Chumlyakov
Publish Date: 2016/02/26
Volume: 29, Issue: 3, Pages: 282-286
Abstract
The shape memory behavior of 111oriented Ni51Ti49 at single crystals was investigated after stressassisted aging at 500 °C for 15 h under a compressive stress of −150 MPa It was found that a single family of Ni4Ti3 precipitates with two crystallographically equivalent variants was formed after aging under compressive stress Stressassisted aging resulted in tensile twoway shape memory effect strain of 156 under −5 MPa Thermal cycling under −600 MPa resulted in a transformation strain of −215 while the subsequent thermal cycling under −5 MPa resulted in a tensile twoway shape memory effect strain of 22
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