铸造技术2025，Vol.46Issue(11)：1131-1137,7.DOI:10.16410/j.issn1000-8365.2025.4201
钼钒铝铁四元中间合金制备新工艺初探
Preliminary Exploration of a New Process for Preparing Molybdenum-Vanadium-Aluminum-Iron Quaternary Intermediate Alloy
摘要
Abstract
At present,relevant enterprises usually use a one-step method to prepare molybdenum-vanadium-aluminum-iron quaternary intermediate alloys,which have a low production cost and simple operation.After secondary vacuum refining,the gas,impurities and inclusions in the alloy can be further removed,the element distribution can be improved,the number of crystallization defects and segregation can be reduced,and the alloy quality can be improved.However,since aluminium and iron do not easily undergo direct thermal reactions via thermodynamics,the primary molybdenum-vanadium-aluminium alloy was first prepared via the thermite method.An appropriate amount of Fe was subsequently added during the second vacuum induction refining process to obtain the molybdenum-vanadium-aluminum-iron quaternary intermediate alloy.By testing the elemental composition and analysing the phase composition,microstructural morphology,and properties,new preparation processes for high-quality molybdenum-vanadium-aluminum-iron quaternary intermediate alloy were explored.The results show that the content of O and N in the alloy decreases significantly and that the surface quality of the alloy is good after vacuum induction refinement.The Mo30V30Fe5A135 alloy is mainly composed of V0.5Mo0.5,Al5Mo,Al86Fe14 and Fe2Mo3 phases,and the structure is relatively uniform.The average density and hardness of the obtained alloys are 6.2 g/cm3 and 68.86 HRC,respectively.关键词
钼钒铝铁四元中间合金/真空感应精炼/物相组成/宏观形貌/显微组织/性能Key words
molybdenum-vanadium-aluminium-iron quaternary intermediate alloy/vacuum induction refining/phase composition/macroscopic morphology/microstructure/performance分类
矿业与冶金引用本文复制引用
韩茜,刘彦峰,张美丽,代卫丽,杨超普,李晓龙,宋家立..钼钒铝铁四元中间合金制备新工艺初探[J].铸造技术,2025,46(11):1131-1137,7.基金项目
陕西省科技厅重点研发计划(S2023-YF-YBGY-0823) （S2023-YF-YBGY-0823）
陕西省青年创新团队科研计划(24JP055) （24JP055）
商洛学院科研平台发展专项(23KYZX03) （23KYZX03）
2023年陕西高校青年创新团队(秦岭钒资源低碳高效利用创新团队) （秦岭钒资源低碳高效利用创新团队）
秦创原"科学家+工程师"队伍建设(2025QCY-KXJ-092) （2025QCY-KXJ-092）
