Design and experimental study of TA15 titanium alloy based on JMatPro software
The phase diagrams and mechanical properties of TA15 titanium alloy with different alloying contents were cal-culated by JMatPro software.The influence of typical alloying elements of TA15 on the transformation temperature and mechan-ical properties were clarified.It is clear that aluminum can increase the transformation temperature and strength of the alloy.Though V and Mo decrease the transformation temperature,they could improve the strength of the alloy by solution strengthen-ing.There is negligible effect of Zr on the transformation temperature of the alloy,but Zr can effectively increase the alloy strength.The TA15 tube of Ф105mm×6mm geometry was produced based on the optimized chemical composition derived by JMatPro.The microstructures and mechanical properties of the TA15 tube were analyzed.It is shown that the microstructure of the tube is bi-phase structured.The room temperature tensile strength of the tube is 998MPa with an elongation of 17.5%.The 500℃tensile strength of the tube is 715.5MPa,indicating that the TA15 tube possesses both good strength,toughness and plas-ticity.
TA15JmatProalloying elementsmicrostructure and mechanical properties
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