Multiple-step martensitic transformations in Ni-rich NiTi shape memory alloys
β Scribed by M.C. Carroll; Ch. Somsen; G. Eggeler
- Book ID
- 113894769
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 396 KB
- Volume
- 50
- Category
- Article
- ISSN
- 1359-6462
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π SIMILAR VOLUMES
Usually aged Ni-rich NiTi alloys undergo martensitic transformations on cooling from high temperatures in two steps: B2 to R and then R to B19Π (normal behaviour). But under certain ageing conditions, the transformation can also occur in three or more steps (unusual multiple step behaviour). In the
High-precision data on phase transformation temperatures in NiTi, including numerical expressions for the effect of Ni on M S , M F , A S , A F and T 0 , are obtained, and the reasons for the large experimental scatter observed in previous studies are discussed. Clear experimental evidence is provid