Effect of heat treatment process on microstructure and properties of titanium alloy tubing

Li Zhoubo; Zhao Yong; Gao Mengzhao; Huang Xiaojiang; Yuan Qingying

doi:10.7513/j.issn.1004-7638.2021.01.008

Volume 42 Issue 1

Feb. 2021

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Li Zhoubo, Zhao Yong, Gao Mengzhao, Huang Xiaojiang, Yuan Qingying. Effect of heat treatment process on microstructure and properties of titanium alloy tubing[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(1): 50-54. doi: 10.7513/j.issn.1004-7638.2021.01.008

Citation:

Li Zhoubo, Zhao Yong, Gao Mengzhao, Huang Xiaojiang, Yuan Qingying. Effect of heat treatment process on microstructure and properties of titanium alloy tubing[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(1): 50-54. doi: 10.7513/j.issn.1004-7638.2021.01.008

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Effect of heat treatment process on microstructure and properties of titanium alloy tubing

doi: 10.7513/j.issn.1004-7638.2021.01.008

Li Zhoubo^{1, 2
,},
Zhao Yong^{1, 2},
Gao Mengzhao^{1, 2},
Huang Xiaojiang^{1, 2},
Yuan Qingying^{1, 2}

1.
Chinese National Engineering Research Center for Petroleum and Natural Gas Tubular Goods, Baoji 721008, Shanxi, China
2.
Baoji Petroleum Steel Pipe Co., Ltd., Baoji 721008, Shanxi, China

Received Date: 2020-08-07
Publish Date: 2021-02-10

Abstract

Abstract

The effect of heat treatment process on the microstructure and properties of titanium alloy oil well tubes was studied by means of optical microscope, scanning electron microscope, tensile testing machine and impact testing machine. The results show that the solid solution temperature has a great influence on the grain morphology and phase proportion of titanium alloy tubing. In the α+β two-phase region, the proportion of α phase decreases with increase of the solution temperature. Bimodal structure of titanium alloy can be obtained at 850 ℃ of solid solution for 1 h followed by water cooling and 550 ℃ aging for 2 h followed by air cooling, which can realize the matching of high strength and toughness of titanium alloy oil well tubes. And it has excellent comprehensive properties, meeting the requirements of SY/T 6896.3 standard for 110ksi steel grade titanium alloy oil well tubes.
- titanium alloy tubing,
- heat treatment,
- solid solution temperature,
- microstructure,
- mechanical properties

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References(16)

References

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