电磁搅拌对ZL401组织与性能的影响
Effects of Electromagnetic Stirring On Microstructure and Properties of ZL401Alloy
胡文全，迟长志
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作者单位：辽宁工程技术大学 材料科学与工程学院，辽宁 阜新 123000
中文关键字：ZL401合金；电磁搅拌；显微组织；硬度；耐磨性
英文关键字：ZL401 alloy; electromagnetic stirring; microstructure; hardness; wear-resistant
中文摘要：为了细化ZL401合金的组织，提高其硬度及耐磨性，本文在ZL401合金凝固过程中施以电磁搅拌，改变搅拌温度和励磁电压，对凝固后的合金进行组织观察和性能测试。结果表明：电磁搅拌能明显细化组织。当励磁电压由0升高至90V时，合金的晶粒越来越细，硬度及耐磨性随之提高；当搅拌温度由700℃升至730℃时，合金的凝固组织先细化而后变得粗大，硬度和耐磨性先增大后下降；当搅拌温度为720℃，励磁电压为90V时，制得的合金性能最好。
英文摘要：When ZL401 alloy freezing, they will be put on magnetic field. The excitation voltage of electromagnetic stirring and alloy melt temperature were adjusted. Effect of electromagnetic stirring on the microstructure and properties of ZL401 were studied through observing microstructure and testing properties. The results show that, in the effects of electromagnetic stirring, the microstructure of ZL401 alloy has been fined. When the excitation voltage increases from 0 to 90V, the microstructure becomes fine, the hardness and wear-resistant increase. When the stirring temperature increase from 700℃ to 730℃, the microstructure become fine and then become bad, the hardness and wear-resistant increase at fist and then decrease. When the excitation voltage is 90V and the stirring temperature is 720℃, the alloy has the highest hardness and the best wear-resisting property.