Process development and characterization of additively manufactured nickel-titanium shape memory parts

Jason M. Walker, Christoph Haberland, Mohsen Taheri Andani, Haluk Ersin Karaca, David Dean, Mohammad Elahinia

Research output: Contribution to journalArticlepeer-review

85 Scopus citations

Abstract

Additive manufacturing of nickel-titanium has two distinct advantages over conventional methods. It circumvents the difficulties associated with machining of nickel-titanium and it provides a freedom-of-design that conventional processing cannot match. In this article, we analyze the effects of processing parameters on the structural and functional outcomes of selective laser melted nickel-titanium parts. Notably, we expand the parametric envelope compared to the previous studies by utilizing a higher power 300 W laser. Optimal process parameters are identified for additively manufacturing of nickel-titanium parts with verified shape memory behavior and complex structures with accurate features are fabricated.

Original languageEnglish
Pages (from-to)2653-2660
Number of pages8
JournalJournal of Intelligent Material Systems and Structures
Volume27
Issue number19
DOIs
StatePublished - Nov 1 2016

Bibliographical note

Publisher Copyright:
© The Author(s) 2016.

Keywords

  • Nickel-titanium
  • Nitinol
  • additive manufacturing
  • selective laser melting
  • shape memory alloys

ASJC Scopus subject areas

  • General Materials Science
  • Mechanical Engineering

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