The investigation of Mo alloying on the electrochemical behaviour of pure Ti

GAO Qiang; TENG Aijun; KANG Qiang; WANG Peng; WANG Jibing

doi:10.7513/j.issn.1004-7638.2026.01.010

Volume 47 Issue 1

Feb. 2026

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GAO Qiang, TENG Aijun, KANG Qiang, WANG Peng, WANG Jibing. The investigation of Mo alloying on the electrochemical behaviour of pure Ti[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(1): 89-93. doi: 10.7513/j.issn.1004-7638.2026.01.010

Citation:

GAO Qiang, TENG Aijun, KANG Qiang, WANG Peng, WANG Jibing. The investigation of Mo alloying on the electrochemical behaviour of pure Ti[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(1): 89-93. doi: 10.7513/j.issn.1004-7638.2026.01.010

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The investigation of Mo alloying on the electrochemical behaviour of pure Ti

doi: 10.7513/j.issn.1004-7638.2026.01.010

1.
Vanadium and Titanium Branch, Ansteel Beijing Research Institute Co.Ltd, Beijing 102200, China
2.
China National Heavy Duty Truck Group Co., Ltd., Jinan 250101, Shandong, China

More Information

Received Date: 2025-07-24
Accepted Date: 2025-08-15
Rev Recd Date: 2025-08-12

Available Online: 2026-02-28

Publish Date: 2026-02-28

Abstract

Abstract

The effect of pure Ti alloyed with different Mo content on the microstructure and electrochemical behaviour was studied for the need of further improvement in corrosion resistance and conductivity of titanium bipolar plates in proton exchange membrane water electrolysis environments. Results indicated that the volume fraction of β phase increased, the grain size of α phase decreased, and the corrosion resistance was improved with the increase of Mo content. The warburg impedance appeared in the low frequency region of impedance spectroscopy obtained at open circuit potential (OCP). When the Mo content was below 1.0%, there were many corrosion pits on the surface after electrochemical corrosionthe. Passivation film formed by polarizing at 1.0 V vs Ref for 4 hours exhibited n-type semiconductor behavior, and the conductivity increasesd with Mo content greater than 1.0%.
- bipolar plates,
- Ti,
- Mo,
- microstructure,
- corrosion resistance

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References(20)

References

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