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Effect of Heat Treatment on the Microstructure and Mechanical Properties of Additive Manufactured Ti-6.5Al-2Zr-1Mo-1V Alloy.
Zhang, Sheng; Zhang, Yuqi; Qi, Jinshun; Zou, Zhiyi; Qian, Yuanhong.
Afiliación
  • Zhang S; School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100089, China.
  • Zhang Y; Shunde Graduate School, University of Science and Technology Beijing, Foshan 528300, China.
  • Qi J; School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100089, China.
  • Zou Z; School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100089, China.
  • Qian Y; Centre for Additive Manufacturing, University of Nottingham, Nottingham NG8 1BB, UK.
Materials (Basel) ; 16(1)2022 Dec 24.
Article en En | MEDLINE | ID: mdl-36614499
Ti-6.5Al-2Zr-1Mo-1V (TA15), widely used in the aerospace industry, is a medium- to high-strength, near-α titanium alloy with high aluminium equivalent value. The TA15 fabricated via laser powder bed fusion (L-PBF) normally presents a typical brittle appearance in as-built status, with high strength and low ductility. In this study, the microstructure and properties of L-PBF TA15 were engineered by various heat treatments below the ß-transus temperature (1022 °C). After heat treatment, the original acicular martensite gradually transforms into a typical lamellar α + ß dual-phase structure. Withannealing temperature increases, the lamellar α phase thickened with a decreased aspect ratio. Globularisation of the α grain can be noticed when annealing above 800 °C, which leads to a balance between strength and ductility. After heat treatment between 800-900 °C, the desired combination of strength and ductility can be achieved, with elongation of about 12.5% and ultimate tensile strength of about 1100 Mpa.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Materials (Basel) Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Materials (Basel) Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza