Tensile necking and enhanced plasticity of cold rolled β-Ti dendrite reinforced Ti-based bulk metallic glass matrix composite

Ka Ram Rim, Jin Man Park, Won Tae Kim, Do Hyang Kim

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Tensile mechanical properties and deformation behavior of as-cast and cold-rolled β-Ti dendrite reinforced Ti-based bulk metallic glass matrix composite (BMGMC: Ti40.2Zr18Ni2.85Cu 7.65Be12.3Nb19) have been investigated. The tensile test of the pre-strained BMGMC via cold rolling manifests a distinct necking and large plasticity of ~4%. Such an improvement in tensile mechanical properties of the cold-rolled BMGMC is attributed to the strain-induced change of elastic properties of the glassy matrix, resulting in malleable interaction between the reinforced dendrites and the microstructural evolution derived from pre-introduced multiple shear bands, leading to uniform distribution of shear strain.

Original languageEnglish
Pages (from-to)253-258
Number of pages6
JournalJournal of Alloys and Compounds
Volume579
DOIs
Publication statusPublished - 2013

All Science Journal Classification (ASJC) codes

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

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