On the effect of gamma phase formation on the pseudoelastic performance of polycrystalline Fe-Mn-Al-Ni shape memory alloys

M. Vollmer, C. Segel, P. Krooß, J. Günther, Li-Wei Tseng, I. Karaman, A. Weidner, H. Biermann, T. Niendorf

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

In recent years, iron-based shape-memory-alloys such as Fe-Mn-Al-Ni came into focus, due to superior pseudoelastic performance and concomitantly low costs of the alloying elements. The formation of the ductile γ-phase in polycrystalline Fe-Mn-Al-Ni and its impact on the pseudoelastic performance have not been addressed, yet. Based on modification of quenching conditions this study shows that controlled γ-phase precipitation at grain boundaries can suppress intergranular cracking without affecting pseudoelasticity. In situ incremental strain tests revealed good recoverability up to about 8% strain.

Original languageEnglish
Article number10682
Pages (from-to)23-26
Number of pages4
JournalScripta Materialia
Volume108
DOIs
Publication statusPublished - 2015 Jan 1

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shape memory alloys
Shape memory effect
recoverability
Alloying elements
alloying
Quenching
Grain boundaries
Iron
grain boundaries
quenching
iron
Costs

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Vollmer, M. ; Segel, C. ; Krooß, P. ; Günther, J. ; Tseng, Li-Wei ; Karaman, I. ; Weidner, A. ; Biermann, H. ; Niendorf, T. / On the effect of gamma phase formation on the pseudoelastic performance of polycrystalline Fe-Mn-Al-Ni shape memory alloys. In: Scripta Materialia. 2015 ; Vol. 108. pp. 23-26.
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Vollmer, M, Segel, C, Krooß, P, Günther, J, Tseng, L-W, Karaman, I, Weidner, A, Biermann, H & Niendorf, T 2015, 'On the effect of gamma phase formation on the pseudoelastic performance of polycrystalline Fe-Mn-Al-Ni shape memory alloys', Scripta Materialia, vol. 108, 10682, pp. 23-26. https://doi.org/10.1016/j.scriptamat.2015.06.013

On the effect of gamma phase formation on the pseudoelastic performance of polycrystalline Fe-Mn-Al-Ni shape memory alloys. / Vollmer, M.; Segel, C.; Krooß, P.; Günther, J.; Tseng, Li-Wei; Karaman, I.; Weidner, A.; Biermann, H.; Niendorf, T.

In: Scripta Materialia, Vol. 108, 10682, 01.01.2015, p. 23-26.

Research output: Contribution to journalArticle

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AU - Segel, C.

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AU - Tseng, Li-Wei

AU - Karaman, I.

AU - Weidner, A.

AU - Biermann, H.

AU - Niendorf, T.

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