Influence of solution temperature on microstructure and mechanical properties of two cast Al-Si alloys

被引：13
|
作者：
Sharma, Rajesh
Kumar, Anesh
Dwivedi, D. K. [1 ]
机构：
[1] Indian Inst Technol, Dept Mech & Ind Engn, Roorkee 247667, Uttar Pradesh, India
[2] NIT, Dept Mech Engn, Hamirpur, India
来源：
MATERIALS AND MANUFACTURING PROCESSES | 2006年 / 21卷 / 03期
关键词：
cast aluminium alloys; eutectic and hypereutectic Al-Si; heat treatment; mechanical properties; microstructure; mode of fracture; solutionizing temperature; spheroidization;
D O I：
10.1080/10426910500464784
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present paper the influence of solution temperature 450-550 degrees C on microstructure and mechanical properties of cast Al-12%-0.3% Mg and Al-16%-0.3% Mg alloys has been reported. It was observed that an increase in solution temperature increased the tensile strength of all alloys under investigation. Ductility was adversely affected. Higher solution temperature produced better refinement and distribution of eutectic silicon crystals than a low temperature. Heat treatment of all alloys showed spheroidization of eutectic silicon crystals. Scanning electron microscopy (SEM) of tensile-fractured surfaces was carried out to investigate the influence of solution temperature on the mode of fracture.
引用
收藏
页码：309 / 314
页数：6
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