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Advancement in Tungsten/Molybdenum Alloy Welding Tech-nology
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Affiliation:

1.Henan International Joint Laboratory of High-efficiency Special Green Welding, North China University of Water Resources and Electric Power, Zhengzhou 450045, China;2.Longmen Laboratory, Luoyang 471003, China;3.Henan Key Laboratory of Intelligent Manufacturing Equipment Integration for Superhard Materials, Henan Mechanical and Electrical Vocational College, Zhengzhou 451191, China

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Fund Project:

National Natural Science Foundation of China (52071165, 52475347); National Program of Foreign Experts of China (G2023026003L); China Postdoctoral Fund (2023M740475); Program for Science & Technology Innovation Talents in Universities of Henan Province, China (22HASTIT026); Program for the Top Young Talents of Henan Province, China; Frontier Exploration Projects of Longmen Laboratory, China (LMQYTSKT016); Key Scientific Research Projects of Colleges and Universities in Henan Province, China (24A460008); Key Science and Technology Project of Henan Province, China (242102220064, 222102230111)

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    Abstract:

    Tungsten/molybdenum alloys are widely utilized in the nuclear industry, aerospace and various other fields due to their high melting points and strength characteristics. However, poor sinterability and processability make it difficult to manufacture large-size or complex-shaped parts. Hence, an in-depth study on the welding technology of tungsten/molybdenum alloys is urgent. An introduction of tungsten/molybdenum alloy welding defects and joining process was provided, along with recent advancements in brazing, spark plasma sintering diffusion bonding, electron beam welding and laser beam welding. The latest progress in alloy doping treatment applied to tungsten/molybdenum alloy dissimilar welding was also discussed, and existing welding problems were pointed out. The development prospects of weldability of tungsten/molybdenum alloy by various joining technologies were forecasted, thereby furnishing a theoretical and practical found.

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[Wang Xingxing, Chu Haoqiang, Xie Xu, Pan Kunming, Du Quanbin, Li Ang, Zhang Liyan. Advancement in Tungsten/Molybdenum Alloy Welding Tech-nology[J]. Rare Metal Materials and Engineering,2025,54(1):94~108.]
DOI:10.12442/j. issn.1002-185X.20240462

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History
  • Received:July 27,2024
  • Revised:November 26,2024
  • Adopted:December 03,2024
  • Online: January 24,2025
  • Published: January 20,2025