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Solid-Solution Heat Treatments Effect on Microstructure and Mechanical Properties of Low-Oxygen TZM Alloy
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1.National and Local Joint Engineering Research Center for Functional Materials Processing, College of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;2.School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;3.Institute of Refractory Metals Materials, Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China;4.Western Xinxing Rare and Precious Metals Co., Ltd, Shangluo 726100, China;5.National Joint Engineering Research Center for Wear Control and Forming of Metal Materials, Henan University of Science and Technology, Luoyang 471003, China

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Outstanding Doctorate Dissertation Cultivation Fund of Xi'an University of Architecture and Technology (160842012); National Natural Science Foundation of China (52404409, 52374401, 52104382); China Postdoctoral Science Foundation (2024MD753961); Scientific and Technological Innovation Team Project of Shaanxi Innovation Capability Support Plan (2022TD-30); Key R&D Plan of Shaanxi Province (2023JBGS-14, 2024QCYKXJ-116); Xi'an Science and Technology Plan Project (24ZDCYJSGG0043, 2023JH-GXRC-0020)

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    Abstract:

    Low-oxygen TZM alloy (oxygen content of 0.03vol%) was subjected to solid-solution heat treatment at various temperatures followed by quenching. Results show that the tensile strength of the alloy gradually decreases with the increase in solid-solution temperature, and the elongation first increases and then decreases. The the amount of nanoscale Ti-rich phases precipitated in low-oxygen TZM alloys gradually increases with the increase in solid-solution temperature. Special strip-shaped Ti-rich areas appear in the samples solidified at 1200 and 1300 °C. The nanoscale Ti-rich phases ensure the uniform distribution of dislocations throughout TZM alloy, while significantly improving the plasticity of low-oxygen TZM alloy samples.

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[Xing Hairui, Shi Qianshuan, Hu Boliang, Li Shilei, Li Yanchao, Wang Hua, Wang Qiang, Xu Liujie, Feng Rui, Zhang Wen, Hu Ping, Wang Kuaishe. Solid-Solution Heat Treatments Effect on Microstructure and Mechanical Properties of Low-Oxygen TZM Alloy[J]. Rare Metal Materials and Engineering,2025,54(3):593~603.]
DOI:10.12442/j. issn.1002-185X.20240560

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History
  • Received:August 28,2024
  • Revised:October 07,2024
  • Adopted:October 08,2024
  • Online: March 25,2025
  • Published: March 25,2025