Martensitic phase transformation in Ni-rich NiTi single crystals with one family of Ni4Ti3 precipitates
β Scribed by J Michutta; M.C Carroll; A Yawny; Ch Somsen; K Neuking; G Eggeler
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 331 KB
- Volume
- 378
- Category
- Article
- ISSN
- 0921-5093
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Normally, martensitic transformation occurs in two stages (B2-R-B19 ) in aged Ni-rich TiNi alloys. But a three-stage martensitic transformation was also reported. The origin of this abnormal transformation behavior has remained controversial, and in particular it is difficult to understand why in so
Motivated by eventual applications as high temperature actuators, cyclic isothermal stress-induced transformations of Cu-13.3Al-4.0Ni (wt.%) single crystal wires with stress-free transformation temperatures: M f = 80 Β°C, M s = 100.5 Β°C, A s = 104.5 Β°C and A f = 117 Β°C were studied under the two adve