二次轧制对Al/Mg/Al复合板界面结合强度和力学性能的影响

IF 1.2 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Philosophical Magazine Letters Pub Date : 2022-04-22 DOI:10.1080/09500839.2022.2065702

Xiang-Zhi Cao, Chunhua Xu, Yu Li, Xuecheng Cao, Ruizhi Peng, J. Fang

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引用次数: 1

摘要

研究了二次轧制对Al/Mg/Al复合板组织演变和力学性能的影响。结果表明，在第一次轧制和退火过程中，双层金属间化合物（Mg2Al3和Mg17Al12）形成并夹住了MgO膜，而夹层结构由于金属间化合物的固有脆性而表现出较低的剥离强度。然而，二次轧制导致夹层结构的剪切引起的断裂，因此剥离强度从1.3显著增加 N/mm至12.7 N/mm，这是由于Mg/Al界面的有效结合。二次轧制不仅消除了MgO对界面的影响，而且提高了界面的结合强度。此外，包层片材可以获得优异的伸长率（21%），并保持较高的界面强度（～12 N/mm）。

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Effect of secondary rolling on the interfacial bonding strength and mechanical properties of Al/Mg/Al clad plates

ABSTRACT The effects of secondary rolling on the microstructure evolution and mechanical properties of Al/Mg/Al clad sheets have been investigated. The results indicate that a double-layer intermetallic compound (Mg2Al3 and Mg17Al12) forms and sandwiches the MgO film during the first rolling and annealing, while the sandwich structure shows a low peel strength owing to the intrinsic brittleness of intermetallic. However, a secondary rolling leads to a shear-induced breakage of the sandwich structure, whereupon the peel strength significantly increases from 1.3 N/mm to 12.7 N/mm on account of an effective bonding of the Mg/Al interface. The secondary rolling not only eliminates the influence of MgO on the interface, but also improves the bonding strength of the interface. Furthermore, the clad sheet can obtain an excellent elongation (21%) and remain of high interfacial strength (∼12 N/mm) after the recovery annealing.

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来源期刊

Philosophical Magazine Letters 物理-物理：凝聚态物理

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

2.7 months

期刊介绍： Philosophical Magazine Letters is the rapid communications part of the highly respected Philosophical Magazine, which was first published in 1798. Its Editors consider for publication short and timely contributions in the field of condensed matter describing original results, theories and concepts relating to the structure and properties of crystalline materials, ceramics, polymers, glasses, amorphous films, composites and soft matter. Articles emphasizing experimental, theoretical and modelling studies on solids, especially those that interpret behaviour on a microscopic, atomic or electronic scale, are particularly appropriate. Manuscripts are considered on the strict condition that they have been submitted only to Philosophical Magazine Letters , that they have not been published already, and that they are not under consideration for publication elsewhere.