Neutron diffraction phase analysis during thermal cycling of a Ni-rich NiTi shape memory alloy using the Rietveld method
Martensitic transformations in an aged Ni-rich NiTi shape memory alloy are analysed using neutron diffraction and electron microscopy. The material shows a two step transformation on cooling from B2. After the first release of latent heat on cooling two martensitic phases (R-phase and B19 ′) are pre...
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| Veröffentlicht in: | Scripta materialia 2002-04, Vol.46 (7), p.543-548 |
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| container_title | Scripta materialia |
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| creator | Sitepu, H Schmahl, W.W Allafi, J.K Eggeler, G Dlouhy, A Toebbens, D.M Tovar, M |
| description | Martensitic transformations in an aged Ni-rich NiTi shape memory alloy are analysed using neutron diffraction and electron microscopy. The material shows a two step transformation on cooling from B2. After the first release of latent heat on cooling two martensitic phases (R-phase and B19
′) are present. This is due to a heterogeneous microstructure after solution annealing and ageing. |
| doi_str_mv | 10.1016/S1359-6462(02)00032-5 |
| format | Article |
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| identifier | ISSN: 1359-6462 |
| ispartof | Scripta materialia, 2002-04, Vol.46 (7), p.543-548 |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Applied sciences Cross-disciplinary physics: materials science rheology Electron diffraction Exact sciences and technology Martensitic transformations Materials science Metals. Metallurgy Neutron diffraction Ni 4Ti 3 precipitates Ni-rich NiTi shape memory alloys Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Rietveld method Transmission electron microscopy |
| title | Neutron diffraction phase analysis during thermal cycling of a Ni-rich NiTi shape memory alloy using the Rietveld method |
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