Steel to titanium solid state joining displaying superior mechanical properties

Aslan Miriyev, David Barlam, Roni Shneck, Adin Stern, Nachum Frage

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Joint configuration with Ti inserts, which allows the increase of the bonded area of similar materials at the expense of that of dissimilar ones, is suggested. The force to failure for the specimens with the suggested configuration was about two fold higher than that for the specimens with the planar interface. Microstructural analysis of the joints, fracture characterization, mechanical testing and finite elements simulation were conducted in order to elucidate the mechanical behavior of the suggested joint configuration. Failure of joints with Ti-inserts is governed by the brittle behavior of TiC and α-Ti layers, located at the steel-Ti interface, with cracks initiation within the interfacial layer. The cracks propagate first into the brittle α-Ti phase and then cause the fracture in the Ti/Ti bond. The results of finite elements analysis are in good agreement with the analysis of the fracture surfaces.

Original languageEnglish
Pages (from-to)2884-2890
Number of pages7
JournalJournal of Materials Processing Technology
Volume214
Issue number12
DOIs
StatePublished - 1 Jan 2014

Keywords

  • Fracture analysis
  • Joining
  • Mechanical properties
  • Microstructure
  • Steel
  • Titanium alloy

ASJC Scopus subject areas

  • Ceramics and Composites
  • Computer Science Applications
  • Metals and Alloys
  • Industrial and Manufacturing Engineering

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