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钼钒铝三元中间合金的制备及组织性能研究
Preparation and Study of the Microstructure and Properties of Molybdenum Vanadium Aluminium Ternary Intermediate Alloy
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- DOI:
- 作者:
- 王路扬1，代卫丽1，2，3，韩 茜1，2，3，刘彦峰 1，2，3，张美丽 1，2，3，宋月红 1，2
WANGLuyang1, DAIWeili1,2,3, HAN Xi1,2,3, LIU Yanfeng1,2,3, ZHANG Meili1,2,3, SONGYuehong1,2,3, WANG
- 作者单位:
- 1. 商洛学院化学工程与现代材料学院，陕西商洛726000；2.陕西省尾矿资源综合利用重点实验室，陕西商洛726000； 3. 陕西省矿产资源清洁高效转化与新材料工程研究中心，陕西商洛726000
1. Department of Chemical Engineering and Modern Material, Shangluo University, Shangluo 726000, China; 2. Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo 726000, China; 3. Shanxxi Engineering Research Center for Mineral Resources Clean & Efficient Conversion and New Materials, Shangluo 726000, China
- 关键词:
- 钼钒铝三元中间合金；物相组成；显微组织；性能
molybdenum vanadium aluminium ternary intermediate alloy; phase composition; microstructure; performance
- 摘要:
- 为获得实收率高、 过程可控、 碳含量低的钒钼铝三元中间合金， 通过铝热反应及其过程调控制备出 Mo35-V45-A120、Mo40-V40-Al20 和 Mo45-V35-Al20 3 种合金，并探讨了不同合金的微观组织及性能差异，为生产高品 质钼钒铝三元中间合金奠定基础。结果表明，利用铝热法制备的Mo35-V45-A120、Mo40-V40-Al20和Mo45-V35-Al20 3 种合金元素含量均符合行业标准，主要物相均为V0.5 Mo0.5相。 Mo40-V40-Al20合金在 1370.4℃开始出现一个小的吸 热峰，该峰可能是V0.5 Mo0.5相开始熔化的峰。随Mo含量增加，合金中V0.5 Mo0.5第二相数量增多，Mo40-V40-Al20合金的 第二相颗粒细小、分布更均匀；同时合金密度明显增大，且Mo40-V40-Al20合金硬度最大，为71.24HRC。To obtain ternary intermediate alloys of vanadium, molybdenum and aluminium with high actual yields, controllable processes and low carbon contents, Mo35-V45-A120, Mo40-V40-Al20 and Mo45-V35-Al20 alloys were prepared through aluminothermic reactions and process control. The differences in the microstructures and properties of different alloys were also explored, laying a foundation for the production of high-quality ternary intermediate alloys of molybdenum, vanadium and aluminium. The results reveal that the elemental contents of the Mo35-V45-A120, Mo40-V40-Al20, and Mo45-V35-Al20 alloys prepared via the heating process meet the industry standards and that the main phase of the three alloys is the V0.5 Mo0.5 phase. A small endothermic peak appears in the Mo40-V40-Al20 alloy at 1 370.4 ℃, which is likely the peak corresponding to the initiation of melting of the V0.5 Mo0.5 phase. With increasing Mo content, the number of V0.5 Mo0.5 second phase particles in the alloy increases, and the second phase particles in the Mo40-V40-Al20 alloy are finer and more evenly distributed. Moreover, the alloy density significantly increases. The maximum hardness of the Mo40-V40-Al20 alloy is 71.24 HRC.