Stress-Induced Martensite in Front of Crack Tips in NiTi Shape Memory Alloys: Modeling Versus Experiments
β Scribed by C. Maletta; M. L. Young
- Book ID
- 107461777
- Publisher
- Springer US
- Year
- 2011
- Tongue
- English
- Weight
- 482 KB
- Volume
- 20
- Category
- Article
- ISSN
- 1059-9495
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The Ni-Mn-Ga shape memory ferromagnetic shape memory alloys (FSMAs) are prone to fracture during thermal cycling. The present research shows that the primary reason for the thermally induced fracture of Ni-Mn-Ga FSMAs is the increase in the crack tip stress-intensity factor (SIF) due to stress redis
Crack loading and crack extension in pseudoelastic binary NiTi shape memory alloy (SMA) miniature compact tension (CT) specimens with 50.7 at.% Ni (austenitic, pseudoelastic) was investigated using infrared (IR) thermography during in situ loading and unloading. IR thermographic measurements allow f