Enhancing the microstructure and grain refining performance of Al-5Ti-1B master alloy by a gas atomization process

被引：0

作者：

Kang, Yuehua ^{[1
]}

Wang, Shuncheng ^{[1
]}

Zhou, Nan ^{[1
]}

Song, Dongfu ^{[1
]}

Zheng, Kaihong ^{[1
]}

机构：

[1] Guangdong Inst Mat & Proc, Changxing Rd 363, Guangzhou 510650, Guangdong, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2019年 / 110卷 / 09期

关键词：

Al-5Ti-1B master alloy; Gas atomization; Microstructure; Grain refining performance; AL-TI; HETEROGENEOUS NUCLEATION; HALIDE SALTS; ALUMINUM; REFINEMENT; SOLIDIFICATION; EFFICIENCY; MECHANISM; MELT; MANUFACTURE;

D O I：

10.3139/146.111803

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A gas atomization process has been explored to enhance the microstructure and grain refining performance of Al-5Ti- 1B master alloy. The results indicate that a gas atomization process has evidently alleviated the aggregation tendency of TiB, particles and refined TiAl3 particles, resulting in a fine uniform dispersion of TiB2 and TiAl3 particles. Grain refining performance tests showed that the gas atomized Al-5Ti- 1B master alloy effectively refined the average grain size of commercial purity Al from 2500 mu m to 183 mu m after 2 min of its inoculation, and the average grain size remained at 229 mu m after inoculation for 180 min. The gas atomized Al-5Ti- 1B master alloy demonstrated a much better grain refining efficiency and higher anti-fading ability than that of the as-cast Al-5Ti- 1B master alloy.

引用

页码：853 / 858

页数：6

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