Microstructure and shape memory effect of laser welded Nitinol wires

Runhua Yao, Peng Dong, Peter K. Liaw, Jun Zhou, Wenxian Wang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, crossed Nitinol wires were joined by laser welding, and the microstructures of the joint in various zones were revealed by transmission electron microscopy. A series of nanoindentation experiments were performed across the joint, and the size changes of indentations after heating were used to evaluate the shape memory effects. Compared to BM, HAZ retained about the 95% shape recovery, higher than FZ, which retained about the 75% recovery rate.

Original languageEnglish (US)
Pages (from-to)1-5
Number of pages5
JournalMaterials Letters
Volume238
DOIs
StatePublished - Mar 1 2019

Fingerprint

Shape memory effect
recovery
wire
Wire
Recovery
microstructure
Microstructure
laser welding
heat affected zone
Lasers
Laser beam welding
Nanoindentation
nanoindentation
indentation
Indentation
lasers
Transmission electron microscopy
Heating
transmission electron microscopy
heating

All Science Journal Classification (ASJC) codes

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

Cite this

Yao, Runhua ; Dong, Peng ; Liaw, Peter K. ; Zhou, Jun ; Wang, Wenxian. / Microstructure and shape memory effect of laser welded Nitinol wires. In: Materials Letters. 2019 ; Vol. 238. pp. 1-5.
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Microstructure and shape memory effect of laser welded Nitinol wires. / Yao, Runhua; Dong, Peng; Liaw, Peter K.; Zhou, Jun; Wang, Wenxian.

In: Materials Letters, Vol. 238, 01.03.2019, p. 1-5.

Research output: Contribution to journalArticle

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