Properties of Ti-5Al-5Mo-5V-3Cr samples produced via powder hot-isosta tic-pressing

N. Wain, G. A. Ravi, X. J. Hao, X. Wu

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

Hot-isostatic-pressing ('HIPping') of powder is an effective manufacturing technique: it allows the production of complex parts to very near net-shape and is therefore highly material-efficient. In this work, Ti-5Al-5Mo-5V-3Cr ('Ti-5553'), a high-strength metastable beta Ti alloy, was HIPped from powder to produce monolithic parts. The effects of powder production route, alloy composition and HIPping conditions on the microstructure and properties of the HIPped Ti-5553 were assessed. The difference between gas atomised powders and PREP powders has been studied, together with the influence of minor carbon addition on the HIPped microstructure. Mechanical testing showed the effect of these different microstructures on tensile strength, fatigue and fracture toughness. Mechanical properties were often found to be comparable to those of Ti-5553 alloy produced from ingot. The significance of the results on the viability of HIPped beta Ti alloys is discussed.

Original languageEnglish
Title of host publicationTMS 2010 - 139th Annual Meeting and Exhibition - Supplemental Proceedings
Pages275-282
Number of pages8
Volume1
Publication statusPublished - 2010
Externally publishedYes
EventTMS Annual Meeting and Exhibition 2010 - Seattle, WA, United States of America
Duration: 14 Feb 201018 Feb 2010
Conference number: 139th

Conference

ConferenceTMS Annual Meeting and Exhibition 2010
CountryUnited States of America
CitySeattle, WA
Period14/02/1018/02/10

Keywords

  • Beta titanium
  • HIPping
  • Powder

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