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

Xiaohua Min, Takahiro Sawaguchi, Xin Zhang, Kaneaki Tsuzaki

研究成果: ジャーナルへの寄稿学術誌査読

30 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)37-40
ページ数4
ジャーナルScripta Materialia
67
1
DOI
出版ステータス出版済み - 7月 2012
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学
  • 金属および合金

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