Aluminothermic preparation of bulk nanocrystalline Fe-Al-Cr alloy: Computer simulation of melt cooling

被引：11

作者：

La, P.Q. ^{[1
]}

Zhang, D. ^{[1
]}

Ma, D.L. ^{[1
]}

Wei, Y.P. ^{[1
]}

Wang, H.D. ^{[1
]}

Lu, X.F. ^{[1
]}

机构：

[1] State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou

来源：

International Journal of Self-Propagating High-Temperature Synthesis | 2012年 / 21卷 / 02期

关键词：

Aluminothermic reaction; Computer simulation; Fe-Al-Cr alloy;

D O I：

10.3103/S1061386212020069

中图分类号：

学科分类号：

摘要：

The effects of process parameters-such as temperature evolution, cooling rate, and duration of overheating of Fe-Al-Cr melt - on the aluminothemic preparation of bulk nanocrystalline Fe-Al-Cr alloy were explored by using finite element analysis software ANSYS. The results show that the changes in temperature and cooling rate of the melt are evidently in the direction of height, while it remains nearly unchanged in the radial direction. The cooling rate of the Fe-Al-Cr melt increases slightly with increasing substrate thickness. The cooling rate of melt is significantly lower for glass substrate than that of 1045 steel and Cu substrate. Duration of overheating of the melt on glass is much larger than that on steel or copper substrate. © Allerton Press, Inc., 2012.

引用

页码：89 / 97

页数：8

共 20 条

[1]

West-Brook J.H., Fleischer R.L., Intermetallic Compounds: Structural Applications, 3, (2000)

[2]

Zhang Y.G., Han Y.F., Chen G.L., Et al., Intermetal-lic Structural Materials, (2001)

[3]

Li Y.J., Wang J., Wu H.Q., XRD and TEM analysis of Fe 3Al alloy layer on the surface of the calo-rized steel, Mater. Res. Bull., 36, 13-14, (2001)

[4]

Josef P., Guido S., The relation between the shape of stress anomaly and structure of Fe 3Al alloys, Intermetallics, 10, 7, (2002)

[5]

Yang Z., Wang Y., Zhou A.M., Anomalous temperature dependence of tensile strength for Fe 3Al alloy at 100-300°C, J. Iron Steel Res., 14, 2, (2002)

[6]

McKamey C.G., Devan J.H., Tortorelli P.F., A review of recent developments in Fe 3Al-based alloys, J. Mater. Res., 6, 8, (1991)

[7]

Fair G.H., Wood J.V., Mechanical alloying of Fe-Al intermetallics in the DO 3 composition range, J. Mater. Sci., 29, 7, (1994)

[8]

Jain M., Christman T., Bulk nanophase Fe-28Al-2Cr intermetallic, Acta Met. Mater., 42, 6, (1994)

[9]

He L., Ma E., Full-density nanocrystalline Fe-29Al-2Cr intermetallic consolidated from mechanically milled powders, J. Mater. Res., 11, 1, (1996)

[10]

Minamino Y., Koizumi Y., Tsuji N., Hirohata N., Mizuuchi K., Ohkanda Y., Microstructures and mechanical properties of bulk nanocrystalline Fe-Al-C alloys made by mechanical alloying with sub-sequent spark plasma sintering, Sci. Technol. Adv. Mater., 5, 1-2, (2004)

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