Effect of Cyclic Heat Treatment on Microstructure Evolution of TA15 Titanium Alloy

• Autorzy: Zhang Dan-Ya , Nong Zhi-Sheng , Wang Tian-Xing

Identyfikatory

DOI

10.24425/amm.2023.145449

• Języki publikacji: EN

Abstrakty

EN

To investigate the effect of cyclic heat treatment on the microstructure evolution of titanium alloys, TA15 alloys were subjected to different numbers of heat treatment cycles at various temperatures in the (α + β) two-phase region. The resulting microstructure and hardness of the alloy were characterized by using the metallographic microscopy, scanning electron microscopy, and Vickers hardness testing. The morphology of the initial TA15 alloy was nearly equiaxed structure. The α phase content, thickness of the oxygen-rich α layer, and hardness of the TA15 alloy increased with the number of cycles. The morphology of the TA15 alloy changed into the Widmannstatten structure when the alloy underwent six cycles of heat treatment between 970 and 800°C. The thickness of the oxygen-rich α layer and hardness of the alloy increased with the lower limit temperature of the cyclic heat treatment. Compared with the number of cycles, the lower limit temperature of the cyclic heat treatment was a more significant factor on the microstructure evolution of the TA15 titanium alloy.

Słowa kluczowe

EN

TA15 titanium alloy; cyclic heat treatment; microstructure evolution

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2023
• Tom: Vol. 68, iss. 3
• Strony: 869--874
• Opis fizyczny: Bibliogr. 22 poz., fot., rys.

Twórcy

autor

Zhang Dan-Ya

• Shenyang Aerospace University, Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process, Shenyang 110136, China

• https://orcid.org/0000-0002-3685-8071

autor

Nong Zhi-Sheng

• Shenyang Aerospace University, School of Materials Science and Engineering, Shenyang 110136, China

• https://orcid.org/0000-0001-9296-6272

autor

Wang Tian-Xing

• Shenyang Aerospace University, School of Materials Science and Engineering, Shenyang 110136, China

• https://orcid.org/0000-0001-5645-101X

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Uwagi

This research was supported by the National Natural Science Foundation of China (No. 51701128), Liao Ning Revitalization Talents Program (No. XLYC2007075) and the Scientific Research Fund of Liaoning Provincial Education Department (No. JYT19037).