Anomalous strain-rate effect on plasticity of a Mo-Re alloy at room temperature

Jianhui Xu, Todd Leonhardt, John Farrell, Michael Effgen, Tongguang Zhai

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Tensile tests were conducted on a fully recrystallized 50Mo-50Re alloy, in the form of 0.216 mm thick sheet, at different strain rates ranging from 10-6 to 1 s-1 at room temperature. It was found that the total elongation of the alloy increased significantly with increasing strain rate. Plastic deformation was found to occur by both slip and twinning in this alloy. The fracture surface changed from brittle to ductile with increase in strain rate. The decrease in ductility at low strain rates in this alloy is possibly related to the interaction between dislocations and trace interstitial elements.

Original languageEnglish
Pages (from-to)76-82
Number of pages7
JournalMaterials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Issue number1-2
StatePublished - Apr 25 2008

Bibliographical note

Funding Information:
This work is funded by KSEF (148-502-03-74). Authors thank Drs. Alan Male and John Balk (University of Kentucky) for useful discussions, and Prof. Ibrahim Jawahir for permission for us to use the 3-D surface profiler.


  • Mo-Re alloy
  • Refractory alloy
  • Strain-rate effect
  • Tensile properties

ASJC Scopus subject areas

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


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