Study on Absorption Rate of Phosphorus for Hypereutectic Al-Si Alloy Modified with Cu-P

Abstract:

In this paper, the effects of process parameters on the absorption rate of P for hypereutectic Al-Si alloy (A390) which modified with Cu-14%P master alloy were systematically studied. And the mechanism that the process parameters play a role in effecting on the absorption rate of P was deeply investigated. The results indicated that the absorption rate of P increased with the increase of modified time and temperature, and decreased with the increase of the amount of added P. Under the same process condition, P added in form of Cu-14%P particles can cause to obtain the higher absorption rate of P than that of Cu-14%P powders. According to the experimental results, an equation on changes of the absorption rate of P was proposed, and the results show that good agreement is obtained between calculated and experimental values. The process parameters played a role in effecting on the absorption rate of P mainly through affecting the reaction rate of forming AlP particles in the melt, as well as the degree of reaction reached.

• Periodical: Materials Science Forum (Volumes 794-796)
• Pages: 112-117
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.794-796.112
• Online since: June 2014
• Authors: Gu Zhong, Zhi Bin Wu, Chu Qiu, Ya Fang Li, Hiromi Nagaumi*
• Keywords: Absorption Rate, Hypereutectic Al-Si Alloy, Mechanism, Modification

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