Author:
Liu C. T.,Sparks C. J.,Horton J. A.,George E. P.,Carmichael C. A.,Kao Ming-Yuan,Kunsmann Henry
Abstract
AbstractThis paper summarizes our recent study of NiAI+Fe+B alloy ribbons containing 4 to 20% Fe and doped with 300 wt ppm B. Alloy ribbons were successfully fabricated by rapid solidification via melt spinning. The alloys with 8% Fe and 34% Al-equivalent [=Al%+(Fe%)/2] showed the best bend ductility at room temperature. The ribbons exhibited a reversible martensite (body-centered orthorombic structure) to B2 transformation as evidenced by DSC, X-ray and TEM studies. The shape-memory effect, as characterized by measuring the recovery of bend angles with temperature, is sensitive to alloy composition, with the best recovery observed in SMA-15 (B-doped Ni-27% Al-14% Fe). Annealing at 600°C causes aging embrittlement; in particular, in alloys containing 12% Fe.
Publisher
Springer Science and Business Media LLC
Reference22 articles.
1. A New Ordered Phase in Tempered 63.8Ni–1Co–Al Martensite
2. Room temperature tensile ductility in polycrystalline B2 NiAl
3. 14. Wallin M. , “Characterization and Properties of New Shape Memory Alloys in the NiFe-Al System,” Report No. IM-2598, Swedish Institute for Metals Research, Stockholm, Sweden.
4. Reversible shape memory effect
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