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Investigation of the effect of magnesium on the microstructure and mechanical properties of NiTi shape memory alloy prepared by self-propagating high-temperature synthesis

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Abstract
This work aims to describe the effect of magnesium on the microstructure, phase composition, amount of undesirable Ti2Ni phase, martensitic transformation, mechanical properties, and corrosion resistance of NiTi alloy. To minimize the quantity of Ti2Ni phase, we use the magnesium as an element with high affinity to oxygen, because this phase is stabilized by oxygen. Various quantities of magnesium (1, 3, and 5 wt pct) were tested. Self-propagating high-temperature synthesis (SHS) was used as a production method of the alloys. The samples prepared by SHS were pulverized by a vibrating mill, and the obtained powders were used for consolidation by means of spark plasma sintering. Results showed a significant reduction of the content of undesirable Ti2Ni phase by the addition of magnesium. Further, magnesium increased corrosion resistance and yield strength.
Keywords
TI-ZR ALLOYS, MARTENSITIC-TRANSFORMATION, PHASE-TRANSFORMATION, POROUS, NITI, SHS, BEHAVIOR, METALLURGY

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Chicago
Školákova, Andrea, Pavel Novák, Pavel Salvetr, Hynek Moravec, Václav Šefl, Davy Deduytsche, and Christophe Detavernier. 2017. “Investigation of the Effect of Magnesium on the Microstructure and Mechanical Properties of NiTi Shape Memory Alloy Prepared by Self-propagating High-temperature Synthesis.” Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science 48A (7): 3559–3569.
APA
Školákova, A., Novák, P., Salvetr, P., Moravec, H., Šefl, V., Deduytsche, D., & Detavernier, C. (2017). Investigation of the effect of magnesium on the microstructure and mechanical properties of NiTi shape memory alloy prepared by self-propagating high-temperature synthesis. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 48A(7), 3559–3569.
Vancouver
1.
Školákova A, Novák P, Salvetr P, Moravec H, Šefl V, Deduytsche D, et al. Investigation of the effect of magnesium on the microstructure and mechanical properties of NiTi shape memory alloy prepared by self-propagating high-temperature synthesis. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE. 2017;48A(7):3559–69.
MLA
Školákova, Andrea, Pavel Novák, Pavel Salvetr, et al. “Investigation of the Effect of Magnesium on the Microstructure and Mechanical Properties of NiTi Shape Memory Alloy Prepared by Self-propagating High-temperature Synthesis.” METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 48A.7 (2017): 3559–3569. Print.
@article{8531368,
  abstract     = {This work aims to describe the effect of magnesium on the microstructure, phase composition, amount of undesirable Ti2Ni phase, martensitic transformation, mechanical properties, and corrosion resistance of NiTi alloy. To minimize the quantity of Ti2Ni phase, we use the magnesium as an element with high affinity to oxygen, because this phase is stabilized by oxygen. Various quantities of magnesium (1, 3, and 5 wt pct) were tested. Self-propagating high-temperature synthesis (SHS) was used as a production method of the alloys. The samples prepared by SHS were pulverized by a vibrating mill, and the obtained powders were used for consolidation by means of spark plasma sintering. Results showed a significant reduction of the content of undesirable Ti2Ni phase by the addition of magnesium. Further, magnesium increased corrosion resistance and yield strength.},
  author       = {\v{S}kol{\'a}kova, Andrea and Nov{\'a}k, Pavel and Salvetr, Pavel and Moravec, Hynek and \v{S}efl, V{\'a}clav and Deduytsche, Davy and Detavernier, Christophe},
  issn         = {1073-5623},
  journal      = {METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE},
  keyword      = {TI-ZR ALLOYS,MARTENSITIC-TRANSFORMATION,PHASE-TRANSFORMATION,POROUS,NITI,SHS,BEHAVIOR,METALLURGY},
  language     = {eng},
  number       = {7},
  pages        = {3559--3569},
  title        = {Investigation of the effect of magnesium on the microstructure and mechanical properties of NiTi shape memory alloy prepared by self-propagating high-temperature synthesis},
  url          = {http://dx.doi.org/10.1007/s11661-017-4105-y},
  volume       = {48A},
  year         = {2017},
}

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