Effects of crystallographic orientation on the superelastic response of FeMnAlNi single crystals

Li-Wei Tseng, Ji Ma, S. J. Wang, I. Karaman, Y. I. Chumlyakov

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The effects of crystal orientation on the tensile superelastic response of the Fe43.5Mn34Al15Ni7.5 single crystalline shape memory alloy, oriented along the < 100 > and < 123 > directions were investigated. The single crystals aged at 200 °C for 3 h demonstrated superelastic strains of 3.6% along the < 100 > orientation and 7.8% along the < 123 > orientation. Although the theoretical transformation strain in the < 100 > orientation is higher than that in the < 123 > orientation, the < 123 > oriented single crystals demonstrate better superelastic recovery in tension due to a higher number of active martensite variants, which promote better accommodation of internal strains and help minimize defect formation during transformation.

Original languageEnglish
Pages (from-to)147-151
Number of pages5
JournalScripta Materialia
Volume116
DOIs
Publication statusPublished - 2016 Apr 15

Fingerprint

Crystal orientation
Single crystals
single crystals
Shape memory effect
Martensite
Crystalline materials
accommodation
Recovery
shape memory alloys
Defects
martensite
recovery
defects
crystals
Direction compound

All Science Journal Classification (ASJC) codes

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

Cite this

Tseng, Li-Wei ; Ma, Ji ; Wang, S. J. ; Karaman, I. ; Chumlyakov, Y. I. / Effects of crystallographic orientation on the superelastic response of FeMnAlNi single crystals. In: Scripta Materialia. 2016 ; Vol. 116. pp. 147-151.
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Effects of crystallographic orientation on the superelastic response of FeMnAlNi single crystals. / Tseng, Li-Wei; Ma, Ji; Wang, S. J.; Karaman, I.; Chumlyakov, Y. I.

In: Scripta Materialia, Vol. 116, 15.04.2016, p. 147-151.

Research output: Contribution to journalArticle

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