Effect of lanthanum in arc erosion of Titanium-Zirconium-Molybdenum alloy

Authors

Bo-Liang Hu, Xi'An University of Architecture and Technology
Kuai-She Wang, Xi'An University of Architecture and Technology
Ping Hu, Xi'An University of Architecture and Technology
Yuhang Zhou, Xi'An University of Architecture and Technology
Fan Yang, Xi'An University of Architecture and Technology
Qin-wei Li, Xi'An University of Architecture and Technology
Wei-Cheng Cao, Jinduicheng Molybdenum Co.
Dong-Xin Liu, Jinduicheng Molybdenum Co.
Ren-Zhi Liu, Jinduicheng Molybdenum Co.
Hai Liang Yu, University of WollongongFollow

RIS ID

111098

Publication Details

Hu, B., Wang, K., Hu, P., Zhou, Y., Yang, F., Li, Q., Cao, W., Liu, D., Liu, R. & Yu, H. (2017). Effect of lanthanum in arc erosion of Titanium-Zirconium-Molybdenum alloy. Journal of Alloys and Compounds, 696 522-528.

Abstract

Titanium-Zirconium-Molybdenum alloy and Lanthanum-doped Titanium-Zirconium-Molybdenum alloy were fabricated by powder metallurgy method. The effect of lanthanum in arc erosion of titanium-zirconium-molybdenum alloy was investigated by using SEM, arc erosion test system and analytical balance. Results show that lanthanum-doped Titanium-Zirconium-Molybdenum alloy has a higher strength, density and lower electrical resistivity compared to that of Titanium-Zirconium-Molybdenum alloy. The average of arc energy and the arc time decrease 17.9% and 20.9% respectively because doping lanthanum decreases the arc current by forming reverse current between the contacts. The mass loss decreases 32.5% and erosion area reduces 32.6%. The lanthanum in the cathode has a good ability of electron emission.