Effects of the Morphology of Silicon Phase on the Properties of Zinc Based Composites


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This paper deals with the microstructure and property of zinc based composites ZA27Six under the treatment of the sodium salt and the rare earth. The test material was prepared with pure zinc ingot (Zn≥99.99wt %) and the Al-Si matrix alloy. Basic composition of the test sample was Al (25~30 wt %), Si (2.5~6.0 wt %) and Zn for the rest. Impact toughness test, tensile test and wear test were conducted. The test results show that under the treatment of sodium the massive primary silicon crystal can transform to nodular silicon on which eutectic silicon crystal can form and grow in rod-like. It is also found that the combined effect of rare earth and sodium salt can obviously refine the silicon phase and the zinc based composites enhanced by nodular silicon has better hardness and wear- resistance.



Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee




A. L. Wei et al., "Effects of the Morphology of Silicon Phase on the Properties of Zinc Based Composites", Materials Science Forum, Vols. 561-565, pp. 693-696, 2007

Online since:

October 2007




[1] QI Le-hua, LI He-jun and LUO Shou-jing: Nonferrous Metals, Vol. 49 (1997), pp.90-94.

[2] LIU Guo-jun, ZHANG Kui and ZHANG Jing-xin: Special Casting and Nonferrous Alloys, Issue 1(2000), pp.10-13.

[3] ZHAO Pei-lian, ZHANG Jin-shan: Material Science and Technology, Vol. 4 (1996), pp.34-37.

[4] PENG Ri-sheng, LIU Jie and LIU Zhi-yong: Journal of Rare Earths in China, Vol. 2 (1997), p.148.

[5] LONG Yan, LI Yuan-yuan and ZHANG Da-tong: Trans Nonferrous Met Soc China, Vol. 12 (2002), pp.775-779.

[6] ZHAO Hao-feng, Song Wei and ZHAO Pei-lian.: Journal of Rare Earths in China, Vol. 16 (2000), pp.46-49.