Influence of heat treatment on microstructure and mechanical properties of ZTC4 titanium alloy

Ran Xing; Wang Zhe; Lv Zhigang; Cao Jian; Chen Yao; Yang Chaorong; Li Peijie

doi:10.7513/j.issn.1004-7638.2022.01.008

Volume 43 Issue 1

Mar. 2022

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Ran Xing, Wang Zhe, Lv Zhigang, Cao Jian, Chen Yao, Yang Chaorong, Li Peijie. Influence of heat treatment on microstructure and mechanical properties of ZTC4 titanium alloy[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(1): 48-52. doi: 10.7513/j.issn.1004-7638.2022.01.008

Citation:

Ran Xing, Wang Zhe, Lv Zhigang, Cao Jian, Chen Yao, Yang Chaorong, Li Peijie. Influence of heat treatment on microstructure and mechanical properties of ZTC4 titanium alloy[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(1): 48-52. doi: 10.7513/j.issn.1004-7638.2022.01.008

Citation:

Ran Xing, Wang Zhe, Lv Zhigang, Cao Jian, Chen Yao, Yang Chaorong, Li Peijie. Influence of heat treatment on microstructure and mechanical properties of ZTC4 titanium alloy[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(1): 48-52. doi: 10.7513/j.issn.1004-7638.2022.01.008

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Influence of heat treatment on microstructure and mechanical properties of ZTC4 titanium alloy

doi: 10.7513/j.issn.1004-7638.2022.01.008

Ran Xing^{1, 2
,},
Wang Zhe³,
Lv Zhigang¹,
Cao Jian⁴,
Chen Yao⁴,
Yang Chaorong⁴,
Li Peijie^{1
,
,}

1.
Department of Mechanical Engineering,Tsinghua University, Beijing 100084, China
2.
AVIC Heavy Machinery Co., Ltd., Guiyang 550005, Guizhou, China
3.
Shaanxi Hongyuan Aviation Forging Co., Ltd., Xianyang 713801, Shaanxi, China
4.
Guizhou Anji Aviation Precision Casting Co., Ltd., Anshun 561003, Guizhou, China

Received Date: 2021-11-16
Available Online: 2022-04-24
Publish Date: 2022-02-28

Abstract

Abstract

The optical microscope (OM) was employed to investigate the influence of heat treatment on microstructure evolution of ZTC4 titanium alloy, and the relationship between microstructure and mechanical properties was discussed. The results showed that the ZTC4 titanium alloy casting was composed of martensitic phase α′. A typical Widmanstatten microstructure was always obtained after annealing or hot isostatic pressing followed by annealing heat treatment. The tensile strength of ZTC4 titanium alloy casting after annealing can reach 955 MPa, and its elongation and reduction of area were only 8.8% and 13.1%, respectively. After hot isostatic pressing followed by annealing heat treatment, the tensile strength was reduced to 892 MPa, but its elongation and reduction of area were increased to 11.2% and 21.4%. The hot isostatic pressing heat treatment can break the original β phase grains, which improve the plastic properties of ZTC4 titanium alloy.
- ZTC4 titanium alloy,
- heat treatment,
- microstructure,
- mechanical properties

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References(18)

References

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