Effect of different scrap titanium on microstructure and mechanical properties of TC4 alloy ingots

HE Tongzheng; WU Jingxi; LUO Guojun; SHEN Xuanjin; TANG Liying; CHEN Yuyong

doi:10.7513/j.issn.1004-7638.2025.02.006

Volume 46 Issue 2

May 2025

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Article Navigation > IRON STEEL VANADIUM TITANIUM > 2025 > 46(2): 39-45, 82

HE Tongzheng, WU Jingxi, LUO Guojun, SHEN Xuanjin, TANG Liying, CHEN Yuyong. Effect of different scrap titanium on microstructure and mechanical properties of TC4 alloy ingots[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(2): 39-45, 82. doi: 10.7513/j.issn.1004-7638.2025.02.006

Citation:

HE Tongzheng, WU Jingxi, LUO Guojun, SHEN Xuanjin, TANG Liying, CHEN Yuyong. Effect of different scrap titanium on microstructure and mechanical properties of TC4 alloy ingots[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(2): 39-45, 82. doi: 10.7513/j.issn.1004-7638.2025.02.006

Citation:

HE Tongzheng, WU Jingxi, LUO Guojun, SHEN Xuanjin, TANG Liying, CHEN Yuyong. Effect of different scrap titanium on microstructure and mechanical properties of TC4 alloy ingots[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(2): 39-45, 82. doi: 10.7513/j.issn.1004-7638.2025.02.006

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Effect of different scrap titanium on microstructure and mechanical properties of TC4 alloy ingots

doi: 10.7513/j.issn.1004-7638.2025.02.006

HE Tongzheng^{1, 2, 3
,},
WU Jingxi³,
LUO Guojun^{1, 2},
SHEN Xuanjin^{1, 2},
TANG Liying^{1, 2},
CHEN Yuyong^{2, 3}

1.
Pangang Group Panzhihua Research Institute of Iron & Steel Co., Ltd., Panzhihua 617000, Sichuan, China
2.
Sichuan Provincial Engineering Research Center of Aerospace Titanium Alloy Precision Castparts, Panzhihua 617000, Sichuan, China
3.
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China

More Information

Received Date: 2024-03-05
Available Online: 2025-04-30
Publish Date: 2025-04-30

Abstract

Abstract

In this study, TC4 alloy ingots were prepared using surplus titanium plate, titanium chip, surplus titanium billet and high-purity raw material. The suitability of centrifugal casting technology to different scrap titanium was systematically analyzed in terms of composition, microstructure and hardness. The results show that the contents of N, O and H elements in the four ingots satisfy the requirements of GB/T6614-2014. However, due to the physical and chemical reactions that occur in scrap titanium materials during different hot forming processes, they can have an important influence on the solidification process of TC4 alloys, resulting in some differences in microstructural and mechanical properties of ingots. In addition, the hardness of the four ingots meets the requirements of GB/T6614-2014, which further confirms that the centrifugal casting technology can be applied to the recovery of scrap titanium. After heat treatment, the microstructure homogenization of 4^# alloy was significantly improved, and the abnormal areas disappeared. The maximum hardness value of 32.5 HRC was obtained for the samples treated by vacuum argon quenching process I.
- scrap titanium,
- TC4 alloy,
- microstructure,
- hardness,
- vacuum heat treatment

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References(33)

References

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