Paper Title:
Effects of Strain Rate on Mechanical Properties and Microstructure of V-5Cr-5Ti Alloy
| Periodical | Materials Science Forum (Volumes 654 - 656) |
|---|---|
| Main Theme | PRICM7 |
| Edited by | Jian-Feng Nie and Allan Morton |
| Pages | 2535-2538 |
| DOI | 10.4028/www.scientific.net/MSF.654-656.2535 |
| Citation | Wen Jun Hu et al., 2010, Materials Science Forum, 654-656, 2535 |
| Online since | June, 2010 |
| Authors | Wen Jun Hu, Xi Cheng Huang, Fang Ju Zhang, Jun Mei, Yi Xia Yan, Yong Mei Chen |
| Keywords | Mechanical Property, Microstructure, Strain-Rate, V-5Cr-5Ti, Vanadium Alloy |
| Price | US$ 28,- |
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Abstract
In this work the static and dynamic tensile properties of vanadium alloy V-5Cr-5Ti were investigated at strain rates ranged from 3.3x10-5/s to 1.2x102/s. The material microstructures were analyzed using optical microscope, SEM, TEM, XRD and EDS. Results show that the yield strength a increases with strain rate. The brittle-ductile transition strain-rate is about 101/s to102/s. At room temperature the tensile fracture at a low strain rate occurs via mixed modes of microvoid aggregating and transgranular cracking; at high strain rate the fracture occurs via a brittle mode. The analysis by TEM, XRD and EDX shows the existence of lath martensite, and on there exits precipitate phase of Ti(O,C, N) in grain boundaries.
