波/平-平轧制Mg/Al复合板界面结构演变及力学性能

doi:10.13251/j.issn.0254-6051.2025.02.022

金属热处理 ›› 2025, Vol. 50 ›› Issue (2): 142-147.DOI: 10.13251/j.issn.0254-6051.2025.02.022

波/平-平轧制Mg/Al复合板界面结构演变及力学性能

朱金森^1,2,3, 边丽萍^1,2,3, 雒宝权^1,2,3, 李腾^1,2,3, 王涛², 梁伟^1,3

1.太原理工大学材料科学与工程学院, 山西太原 030024;
2.太原理工大学先进金属复合材料成形技术与装备教育部工程研究中心, 山西太原 030024;
3.太原理工大学先进镁基材料山西省重点实验室, 山西太原 030024

收稿日期:2024-08-15 修回日期:2024-12-05 发布日期:2025-04-10
通讯作者: 边丽萍,教授,博士,E-mail:bianliping_724@126.com
作者简介:朱金森(1997—),男,硕士研究生,主要研究方向为退火对波纹轧制镁铝复合板的影响,E-mail:1716920081@qq.com。
基金资助:
国家重点研发计划项目(2018YFA0707304);国家自然科学基金面上项目(52175355);中央引导地方科技发展资金项目(YDZJSX2022A017)

Interfacial structure evolution and mechanical properties of Mg/Al composite sheet by corrugated/flat-flat rolling

Zhu Jinsen^1,2,3, Bian Liping^1,2,3, Luo Baoquan^1,2,3, Li Teng^1,2,3, Wang Tao², Liang Wei^1,3

1. School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan Shanxi 030024, China;
2. Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment, Ministry of Education, Taiyuan University of Technology, Taiyuan Shanxi 030024, China;
3. Shanxi Key Laboratory of Advanced Magnesium Based Materials, Taiyuan University of Technology, Taiyuan Shanxi 030024, China

Received:2024-08-15 Revised:2024-12-05 Published:2025-04-10

摘要/Abstract

摘要： 采用波/平-平轧制制备了Mg/Al复合板,并对复合板材进行200 ℃×1 h最终退火热处理。利用金相显微镜、扫描电镜(SEM/EDS)、电子背散射衍射仪和万能电子拉伸机探究了Mg/Al复合板界面结构演变及力学性能。结果表明,两种轧制方式第1道次及400 ℃×15 min中间退火后,界面均实现了冶金结合,界面处无金属间化合物生成。波-平轧制第2道次及200 ℃×1 h退火后,镁合金基体晶粒尺寸在波谷与波峰处呈现不均匀分布,波谷处晶粒得到明显细化,但晶粒尺寸大于平-平轧制,界面处形成“交错咬合式”金属间化合物颗粒,化合物沿波纹界面呈离散分布,具有更好的界面结合特性;平-平轧制界面则形成平直连续的金属间化合物层。波-平轧制工艺具有局部强压、强剪切的变形特征,较平-平轧制,Mg/Al复合板的抗拉强度、屈服强度高,塑性低。

关键词: Mg/Al复合板, 波-平轧制, 平-平轧制, 界面组织, 金属间化合物, 力学性能

Abstract: Mg/Al composite sheet was prepared by corrugated/flat-flat rolling, and the composite sheet was subjected to final annealing treatment at 200 ℃ for 1 h. The microstructure evolution and mechanical behavior of the interface of the Mg/Al composite sheet were investigated by means of metallographic microscope, scanning electron microscope (SEM/EDS), electron backscatter diffractometer and universal electronic tensile machine. The results show that the metallurgical bonding is realized at the interface after the first pass of the both rolling methods and intermediate annealing at 400 ℃ for 15 min, and no intermetallic compound is formed at the interface. After the second pass of corrugated-flat rolling and 200 ℃×1 h annealing, the grain size of magnesium alloy matrix shows uneven distribution at the trough and peak, and the grains at the trough are significantly refined, but the grain size is larger than that of the flat-flat rolling, The “staggered occlusion” intermetallic compound particles are formed at the interface, and the compounds are dispersed along the corrugated interface, possessing better interface bonding characteristics. While a straight and continuous intermetallic compound layer is formed at flat-flat rolling interface. The corrugated-flat rolling process has the deformation characteristics of local strong pressure and strong shear. Compared to the flat-flat rolling, Mg/Al composite sheet has higher tensile strength and yield strength, and lower plasticity.

Key words: Mg/Al composite sheet, corrugated-flat rolling, flat-flat rolling, interface microstructure, intermetallic compounds, mechanical properties

中图分类号:

TG335.1

朱金森, 边丽萍, 雒宝权, 李腾, 王涛, 梁伟. 波/平-平轧制Mg/Al复合板界面结构演变及力学性能[J]. 金属热处理, 2025, 50(2): 142-147.

Zhu Jinsen, Bian Liping, Luo Baoquan, Li Teng, Wang Tao, Liang Wei. Interfacial structure evolution and mechanical properties of Mg/Al composite sheet by corrugated/flat-flat rolling[J]. Heat Treatment of Metals, 2025, 50(2): 142-147.

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波/平-平轧制Mg/Al复合板界面结构演变及力学性能

Interfacial structure evolution and mechanical properties of Mg/Al composite sheet by corrugated/flat-flat rolling

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