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周武平,王玲,秦颖楠,熊宁,刘桂荣,刘国辉.大规格钨基高比重合金材料制备技术研究[J].稀有金属材料与工程(英文),2020,49(11):3957~3961.[Zhou Wuping,Wang Ling,Qin Yingnan,Xiong Ning,Liu Guirong and Liu Guohui.Study on Preparation Technology of Large-size Tungsten Heavy Alloy[J].Rare Metal Materials and Engineering,2020,49(11):3957~3961.]
Study on Preparation Technology of Large-size Tungsten Heavy Alloy
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Received:December 04, 2019  Revised:June 17, 2020
DOI:
Key words: Large-size  Tungsten heavy alloy  Mechanical property  Metallographic analysis
Foundation item:国家重点研发计划专项资助(2017YFB0306000),北京市难熔材料工程技术研究中心
Author NameAffiliation
Zhou Wuping,Wang Ling,Qin Yingnan,Xiong Ning,Liu Guirong and Liu Guohui  
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Abstract:
      The study focuses on preparation technology of tungsten based heavy alloy (WHA). By adding trace element into traditional raw material, carrying out compositon explonation of large-scaled WHA product. 93WNiFe was chosen and multi-step sintering was adopted for the alloy preparation. By means of surpervisor control product size in sintering process and sampling for mechanical performance analysis, internal organization evolution law was investigated. The final part is weight 4 tons, with maximum diameter 700 mm and maximum height of 1400 mm, and sampling for each part, the product tensile strength is greater than 920 Mpa, elongation more than 20%.