Abstract
Martensitic and magnetic properties of NiCoMnSn metamagnetic shape memory alloy powders obtained by a gas atomization method were investigated. The as-atomized powders showed a dendritic structure which changed to a single-phase one by annealing at 1173 K for 2 h. Although the martensitic transformation behavior was almost the same as that in bulk samples, the transformation thermal interval, namely, Ms -Mf, of the as-annealed powders decreased with increasing annealing time. In the powders annealed at 1173 K for 144 h, a reversible metamagnetic phase transition was confirmed by the application of a magnetic field of 7 T.
Original language | English |
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Pages (from-to) | 1915-1918 |
Number of pages | 4 |
Journal | Materials Transactions |
Volume | 49 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2008 Aug |
Keywords
- Martensitic transformation
- Metamagnetic shape memory alloys
- Powder metallurgy
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering