Effects of electroshocking treatment on residual stress and fatigue properties of titanium alloys

SONG Zhengjie; GUO Shuai; ZHANG Jian; WANG Feng; QIAN Dongsheng; LI Kuo; ZHAO Longzhe

doi:10.7513/j.issn.1004-7638.2026.02.001

Volume 47 Issue 2

Apr. 2026

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SONG Zhengjie, GUO Shuai, ZHANG Jian, WANG Feng, QIAN Dongsheng, LI Kuo, ZHAO Longzhe. Effects of electroshocking treatment on residual stress and fatigue properties of titanium alloys[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(2): 1-8. doi: 10.7513/j.issn.1004-7638.2026.02.001

Citation:

SONG Zhengjie, GUO Shuai, ZHANG Jian, WANG Feng, QIAN Dongsheng, LI Kuo, ZHAO Longzhe. Effects of electroshocking treatment on residual stress and fatigue properties of titanium alloys[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(2): 1-8. doi: 10.7513/j.issn.1004-7638.2026.02.001

Citation:

SONG Zhengjie, GUO Shuai, ZHANG Jian, WANG Feng, QIAN Dongsheng, LI Kuo, ZHAO Longzhe. Effects of electroshocking treatment on residual stress and fatigue properties of titanium alloys[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(2): 1-8. doi: 10.7513/j.issn.1004-7638.2026.02.001

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Effects of electroshocking treatment on residual stress and fatigue properties of titanium alloys

doi: 10.7513/j.issn.1004-7638.2026.02.001

SONG Zhengjie^{1, 2
,},
GUO Shuai³,
ZHANG Jian³,
WANG Feng^{1, 2},
QIAN Dongsheng^{1, 2
,
,},
LI Kuo⁴,
ZHAO Longzhe⁴

1.
State Key Laboratory of Light Superalloys, Wuhan University of Technology, Wuhan 430070, Hubei, China
2.
School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, China
3.
Zhongzhe High Speed Railway Bearing Co., Ltd., Quzhou 324400, Zhejiang, China
4.
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China

More Information

Received Date: 2026-02-14
Accepted Date: 2026-03-23
Rev Recd Date: 2026-03-05

Available Online: 2026-04-20

Publish Date: 2026-04-20

Abstract

Abstract

Regulating residual stress and optimizing stress distribution in metallic materials is crucial for enhancing fatigue performance. This study systematically investigates the effects of electroshocking treatment (EST) on the residual stress regulation and vibration fatigue properties of TC11 titanium alloy. The results demonstrate that EST significantly homogenizes the surface and gradient macroscopic residual stress without significantly altering the phase structure. XRD and EBSD analyses reveal that after EST, the dislocation density is reduced by 9.68%, the standard deviation of the KAM value is decreased by 20%, the microstrain is effectively mitigated, and the stress concentration zones are substantially eliminated. Vibration fatigue tests confirm that the average fatigue life of the specimens is remarkably improved from 4.55×10⁵ cycles to 3.60×10⁶ cycles. Further HRTEM analysis verifies that the energy generated by EST can drive atomic rearrangement in stress concentration regions, thereby reducing dislocation density and alleviating lattice distortion. In summary, EST provides an efficient and novel strategy for precise residual stress regulation and fatigue performance enhancement of TC11 titanium alloy.
- electroshocking treatment,
- macroscopic residual stress,
- microscopic residual stress,
- vibration fatigue

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References(31)

References

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