Improved interface bonding of Mg/aluminized steel bimetallic castings prepared by solid-liquid compound casting process

被引：9

作者：

Fan, Suo ^{[1
]}

Wu, Hebao ^{[1
]}

机构：

[1] Wuhan Inst Technol, Sch Mech & Elect Engn, Wuhan 430073, Peoples R China

来源：

INTERNATIONAL JOURNAL OF CAST METALS RESEARCH | 2021年 / 34卷 / 01期

关键词：

Bimetallic castings; pouring temperature; solid– liquid compound casting; interface; microstructure; bonding properties;

D O I：

10.1080/13640461.2020.1868147

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The effect of pouring temperature on microstructure and bonding properties of the Mg/aluminised steel bimetallic castings prepared by the solid-liquid compound casting process was investigated in this paper in order to improve the interface bonding of the Mg/aluminised steel bimetallic castings. The results show that the Mg/aluminised steel bimetallic castings produced with different pouring temperatures obtained a uniform interface layer that was mainly composed of the Fe2Al5, tau(10)-Al9Fe4Si3, FeAl3 and Al12Mg17 phases. When the pouring temperature was low, the cracks were formed between the Mg and the interface layer. With increasing pouring temperature, a compact interface bonding was achieved. The bonding properties of the Mg/aluminised steel bimetallic castings increased with increasing pouring temperature. An optimised bonding of the Mg/aluminised steel bimetallic castings was obtained with a pouring temperature of 780 degrees C.

引用

页码：32 / 42

页数：11

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