Effect of change in coil orientation for SMA spring

K. E. Kim, J. H. Han, Y. M. Sung, K. K. Jee, W. Y. Jang

Research output: Contribution to journalArticlepeer-review


This work is concerned with fabrication of SMA coil spring which shows perfect recovery despite slip deformation by using the 'initial tension'. We have developed a new method of providing the initial tension to SMA springs by changing coil orientation after the shape setting treatment. In this paper, some examples are introduced that a perfect recovery with a greater force, though permanent deformation is involved in the deformation, can be attained by the initial tension. Besides generation of two way shape memory effect is presented using the reverse of coil orientation.

Original languageEnglish
Pages (from-to)S741-S744
JournalJournal of Alloys and Compounds
Issue numberSUPPL. 1
Publication statusPublished - 2013 Nov 15


  • Initial tension
  • Perfect recovery
  • Reverse of coil orientation
  • SMA coil spring
  • Two way shape memory effect

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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