Refinement of primary Si in Cu-50Si alloys with novel Al-Zr-P master alloy

被引：7

作者：

Zuo, Min ^{[1
]}

Zhang, Zhong-Shi ^{[2
]}

Teng, Xin-Ying ^{[1
]}

Geng, Hao-Ran ^{[1
]}

机构：

[1] Univ Jinan, Sch Mat Sci & Engn, Shandong Prov Key Lab Preparat & Measurement Bldg, Jinan 250022, Peoples R China

[2] Univ Jinan, Sch Phys & Technol, Jinan 250022, Peoples R China

来源：

RARE METALS | 2013年 / 32卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Al-Zr-P master alloy; Cu-Si alloy; ZrP; Microstructure; Phase transformation; MECHANICAL-PROPERTIES; MICROSTRUCTURE; SOLIDIFICATION; PERFORMANCE; NUCLEATION;

D O I：

10.1007/s12598-013-0046-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this article, a novel Al-6Zr-2P master alloy with ZrP particles was successfully synthesized, and the refining performance of this novel master alloy for the primary Si in Cu-50Si alloys was also investigated. By means of the fracture plane observation, it is found that the ZrP phase would precipitate first in the solidification process, and then, the ZrAl3 phase grows around them. Furthermore, it is observed that the refining effect can be remarkably improved by changing the addition sequence of the raw materials. After the melting of commercial Cu, the 2.0 wt% Al-6Zr-2P master alloy and crystalline Si were added in sequence, and the mean size of the primary Si in Cu-50Si alloy can be significantly refined from 255.7 to 75.3 mu m. Meanwhile, the refining mechanism was discussed in detail.

引用

页码：252 / 257

页数：6

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