Evaluation of Subsequent Heat Treatment Routes for Near-β Forged TA15 Ti-Alloy
AbstractTA15 Ti-alloy is widely used to form key load-bearing components in the aerospace field, where excellent service performance is needed. Near-β forging technology provides an attractive way to form these complicated Ti-alloy components but subsequent heat treatment has a great impact on the final microstructure and mechanical properties. Therefore evaluation and determination of the heat treatment route is of particular significance. In this paper, for the near-β forged TA15 alloy, the formation and evolution of microstructures under different subsequent heat treatment routes (annealing, solution and aging, toughening and strengthening) were studied and the cooling mode after forging was also considered. Then, the type and characteristics of the obtained microstructures were discussed through quantitative metallographic analysis. The corresponding mechanical properties (tensile, impact toughness, and fracture toughness) and effects of microstructural characteristics were investigated. Finally, for a required microstructure and performance a reasonable heat treatment route was recommended. The work is of importance for the application and development of near-β forging technology. View Full-Text
Share & Cite This Article
Sun, Z.; Wu, H.; Yang, H. Evaluation of Subsequent Heat Treatment Routes for Near-β Forged TA15 Ti-Alloy. Materials 2016, 9, 872.
Sun Z, Wu H, Yang H. Evaluation of Subsequent Heat Treatment Routes for Near-β Forged TA15 Ti-Alloy. Materials. 2016; 9(11):872.Chicago/Turabian Style
Sun, Zhichao; Wu, Huili; Yang, He. 2016. "Evaluation of Subsequent Heat Treatment Routes for Near-β Forged TA15 Ti-Alloy." Materials 9, no. 11: 872.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.