Thermal Stability of Ti-6Al-4V Alloy with Carbon Content

Abstract:

In the paper, the effect of long-term annealing (to 500 h) on the microstructure and hardness of two-phase titanium alloy which represent group of α+β (Ti-6Al-4V) with 0.7 wt. % carbon content was present. The stability of microstructure after long-term annealing was conducted to alloys in hardening state (after solution treatment and aging). Annealing was carried out at a temperature above the operating temperature of commercial titanium alloys without carbon content. The analysis of changes in the microstructure at research range of annealing time indicates its stability, which was confirmed by hardness test of investigated alloys. For comparison to Ti-6Al-4V-0.7C alloy, the microstructure stability research at 420oC was conducted for classical alloy contain no carbon. This alloy was previously subject solution and aging treatment under the same conditions as tested alloy.

• Periodical: Solid State Phenomena (Volume 226)
• Pages: 23-28
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.226.23
• Online since: January 2015
• Authors: Agnieszka Szkliniarz
• Keywords: Long-Term Annealing, Microstructure Stability, Titanium Alloys with Carbon

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