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 journalArticlepeer-review

31 Citations (Scopus)


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 languageEnglish
Pages (from-to)37-40
Number of pages4
JournalScripta Materialia
Issue number1
Publication statusPublished - Jul 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

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


Dive into the research topics of 'Reasons for incomplete shape recovery in polycrystalline Fe-Mn-Si shape memory alloys'. Together they form a unique fingerprint.

Cite this