Microstructure and mechanical properties of the Mg/Al multilayer fabricated by accumulative roll bonding (ARB) at ambient temperature
Microstructure and mechanical properties of the Mg/Al multilayer fabricated by accumulative roll bonding (ARB) at ambient temperature
复制标题
常温累积辊压接合 (ARB) 制备的 Mg/Al 多层膜的显微组织和力学性能
DOI：
10.1016/j.msea.2012.02.083
复制
发表时间：
2012-05-01
期刊：
影响因子：
6.4
通讯作者：
Wu, K.
中科院分区：
文献类型：
--
作者：
Chang, H.;Zheng, M. Y.;Wu, K.
以纯镁和工业纯铝板为原料，采用常温累积滚压成形工艺制备了镁铝层状复合材料。在一次夹层制备后，镁颗粒被细化，然后在随后的ARB工艺中被均化，而铝层的晶粒尺寸随着累积应变的增加而减小。随着ARB循环次数的增加，沿轧制方向和横向的屈服强度和极限强度逐渐增加，而沿这两个方向的断裂伸长率逐渐下降。Mg_(17)Al_(12)相的形成表明，常温下的ARB过程可导致Mg/Al界面的冶金结合。(C)2012爱思唯尔B.V.保留所有权利。
The Mg/Al laminated composites were fabricated by the accumulative roll bonding (ARB) at ambient temperature using the pure magnesium and commercial pure Al sheets. Mg grains were refined after the primary sandwich preparation and then homogenized during the following ARB process while the grain size of Al layer decreased with increasing of the accumulated strains. Both the yield strength and ultimate strength along rolling direction and transverse direction increased gradually while the elongation to failure along both directions decreased with increasing of the ARB cycles. Formation of the Mg17Al12 phase indicated that the ARB process at ambient temperature could lead to a metallurgic bonding of the Mg/Al interface. (C) 2012 Elsevier B.V. All rights reserved.