Reasons for incomplete shape recovery in polycrystalline Fe-Mn-Si shape memory alloys

Xiaohua Min; Takahiro Sawaguchi; Xin Zhang; Kaneaki Tsuzaki

doi:10.1016/j.scriptamat.2012.03.015

Reasons for incomplete shape recovery in polycrystalline Fe-Mn-Si shape memory alloys

Xiaohua Min, Takahiro Sawaguchi, Xin Zhang, Kaneaki Tsuzaki

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

Quantitative surface relief analysis proved that the incomplete shape recovery of a polycrystalline Fe-28Mn-6Si-5Cr alloy was not caused by slip deformation on loading but by irreversible phase transformation on heating, under given conditions ([54̄1̄] tensile axis, 5.9% strain). The observed area showed a higher recovery strain than the macroscopic recovery strain, implying inherently high reversibility. However, the value was significantly lower than that of a single crystal, due to the geometric constraint from surrounding grains, which reflected different transformation dislocations between forward and reverse transformations.

Original language	English
Pages (from-to)	37-40
Number of pages	4
Journal	Scripta Materialia
Volume	67
Issue number	1
DOIs	https://doi.org/10.1016/j.scriptamat.2012.03.015
Publication status	Published - Jul 1 2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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abstract = "Quantitative surface relief analysis proved that the incomplete shape recovery of a polycrystalline Fe-28Mn-6Si-5Cr alloy was not caused by slip deformation on loading but by irreversible phase transformation on heating, under given conditions ([5{\=4}{\=1}] tensile axis, 5.9% strain). The observed area showed a higher recovery strain than the macroscopic recovery strain, implying inherently high reversibility. However, the value was significantly lower than that of a single crystal, due to the geometric constraint from surrounding grains, which reflected different transformation dislocations between forward and reverse transformations.",

author = "Xiaohua Min and Takahiro Sawaguchi and Xin Zhang and Kaneaki Tsuzaki",

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AU - Min, Xiaohua

AU - Sawaguchi, Takahiro

AU - Zhang, Xin

AU - Tsuzaki, Kaneaki

PY - 2012/7/1

Y1 - 2012/7/1

N2 - Quantitative surface relief analysis proved that the incomplete shape recovery of a polycrystalline Fe-28Mn-6Si-5Cr alloy was not caused by slip deformation on loading but by irreversible phase transformation on heating, under given conditions ([54̄1̄] tensile axis, 5.9% strain). The observed area showed a higher recovery strain than the macroscopic recovery strain, implying inherently high reversibility. However, the value was significantly lower than that of a single crystal, due to the geometric constraint from surrounding grains, which reflected different transformation dislocations between forward and reverse transformations.

AB - Quantitative surface relief analysis proved that the incomplete shape recovery of a polycrystalline Fe-28Mn-6Si-5Cr alloy was not caused by slip deformation on loading but by irreversible phase transformation on heating, under given conditions ([54̄1̄] tensile axis, 5.9% strain). The observed area showed a higher recovery strain than the macroscopic recovery strain, implying inherently high reversibility. However, the value was significantly lower than that of a single crystal, due to the geometric constraint from surrounding grains, which reflected different transformation dislocations between forward and reverse transformations.

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JF - Scripta Materialia

SN - 1359-6462

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Reasons for incomplete shape recovery in polycrystalline Fe-Mn-Si shape memory alloys

Abstract

All Science Journal Classification (ASJC) codes

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