Investigation of the workability and response of ti-6Al-4V titanium alloys at lower elevated temperature and higher strain rate

Cindy Xiaohui Huang, Chao Voon Lim, Sylvie Castagne

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)

Abstract

Titanium and its alloys have a wide range of applications in various industries such as aerospace, medical, automotive and even commercial products. However, formability of titanium alloys has always been an issue. This study presents the results of an investigation on the workability and response of Ti-6Al-4V deformed at different strain rates and lower elevated temperatures with different initial microstructures. Compression tests of cylindrical specimens were performed at various temperatures (300°C, 400°C, 450°C, 500°C) and at different strain rates (0.001s-1, 0.02s-1 and 0.1s-1). The effects of strain rate, temperature and initial microstructure on the workability of the Ti alloy were investigated. Based on these experimental results, workability maps for the respective initial microstructures were developed. Results showed that temperature played an important role in the formability of Ti-6Al-4V titanium alloys unlike strain rate. In addition, feasibility study on Multi-Directional Forging (MDF) was performed and positive results were obtained. It was demonstrated that Ti-6Al-4V titanium alloys can undergo severe plastic deformation at lower elevated temperature (400-500°C) and at a higher strain rate of 0.1s-1.

Original languageEnglish
Pages (from-to)1523-1528
Number of pages6
JournalAIP Conference Proceedings
Volume1353
DOIs
Publication statusPublished - 2011
Externally publishedYes

Keywords

  • Formability
  • Multi-Directional Forging (MDF)
  • Severe Plastic Deformation (SPD)
  • Titanium alloys

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