HEAT TREATMENT OF Al-7Si-0.3Mg ALLOY PREVIOUSLY INOCULATED WITH A NEW TYPE OF QUATERNARY MASTER ALLOY

被引：0

作者：

Moldovan, P. ^{[1
]}

Popescu, Gabriela ^{[1
]}

Butu, M. ^{[1
]}

机构：

[1] Univ Politehn Bucuresti, Dept Engn & Management Elaborat Metall Mat, Bucharest, Romania

来源：

UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN SERIES B-CHEMISTRY AND MATERIALS SCIENCE | 2007年 / 69卷 / 02期

关键词：

heat treatment; solution treatment; artificial ageing; grain refining; modification; quality index;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The paper presents the results obtained in T6 heat treatment of Al-7Si-0.3Mg alloy, treated in liquid state with a new type of master alloy (AlTiBSr) for simultaneous grain refining and modification. The heat treatment (solution treatment at 540 degrees C/6h, water quenching, and artificial ageing) leads to improvement of structural characteristics (silicon spheroidization and grain refining) and mechanical properties (increasing of elongation, of yield strength and of the Q quality index). We remark that the results of heat treatment of Al-7Si-0.3Mg alloy refined and modified with AlTiBSr are similar to those obtained for strontium modification with AlSr10 master alloy.

引用

页码：91 / 98

页数：8

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