Abstract
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 language | English |
|---|---|
| Pages (from-to) | 76-82 |
| Number of pages | 7 |
| Journal | Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing |
| Volume | 479 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - 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.
Keywords
- 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