Development of an efficient grain refiner for Al-7Si alloy

被引：84

作者：

Kori, SA ^{[1
]}

Murty, BS ^{[1
]}

Chakraborty, M ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 280卷 / 01期

关键词：

Ti-B master alloys; grain refinement of Al-Si alloy; poisoning effect;

D O I：

10.1016/S0921-5093(99)00656-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The response of Al-7Si alloy towards grain refinement by Al-Ti-B master alloys (with different Ti-B ratios) at different addition levels has been studied in detail. The results indicate that high B-containing master alloys are powerful grain refiners when compared to conventional grain refiners like Al-5Ti-1B master alloys. In the present study, indigenously developed master alloys have been used for the grain refinement of alloys Al-7Si and LM-25. Significant improvements in mechanical properties have been obtained with a combination of grain refiner and Sr as modifier. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：58 / 61

页数：4