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Utilization of Industrial Waste as Mold Material and Its Effect on the Evolution of Microstructure and Mechanical Properties of Al–Si (A319) Alloy
International Journal of Metalcasting ( IF 2.6 ) Pub Date : 2021-01-02 , DOI: 10.1007/s40962-020-00555-7
Nitesh Kumar Sinha , J. K. Singh

The paper focuses on the utilization of industrial waste as a mold material in the foundry industries. The industrial waste used in these papers is red mud, ferro-chrome, and blast furnace slag and compare with the olivine sand and silica sand mold. A319 aluminum alloy is used as a cast product of all the five molds. The cast product A319 was investigated through an optical microscope, Vickers hardness test, XRD, scanning electron microscopy, Tensile test, and fractography. The results show that the secondary dendritic arm spacing (SDAS) of A319 cast in blast furnace slag mold, ferro-chrome slag mold, and silica sand mold are 35 μm, 33.474 μm, 41.78 μm, respectively. The lower value of SDAS of A319 alloy shows the sustainability of red mud, ferro-chrome slag, and blast furnace slag as a mold as compared with silica sand mold.



中文翻译:

工业废料作为模具材料的利用及其对Al-Si(A319)合金显微组织和力学性能演变的影响

本文着重于在铸造行业中利用工业废料作为模具材料。这些纸中使用的工业废料为赤泥,铬铁和高炉矿渣,并与橄榄石砂和硅砂模进行比较。A319铝合金用作所有五个模具的铸造产品。通过光学显微镜,维氏硬度试验,XRD,扫描电子显微镜,拉伸试验和断层照相法研究了铸件A319。结果表明,高炉渣模,铬铁渣模和硅砂模中A319铸件的二次枝晶臂间距(SDAS)分别为35μm,33.474μm,41.78μm。与硅砂铸模相比,A319合金的SDAS值较低,表明作为铸模的赤泥,铬铁矿渣和高炉矿渣具有可持续性。

更新日期:2021-01-03
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