热轧制镁基叠层复合材料的力学性能.pdf.pdf

文档介绍：第 20 卷第 10 期中国有色金属学报 2010 年 10 月
The Chinese Journal of Nonferrous Metals Oct. 2010
文章编号:1004-0609(2010)10-1889-06

热轧制镁基叠层复合材料的力学性能

杨婷慧,张新平,顾春飞,罗秀芳,郁伟恒,廖益传

(南京理工大学材料科学与工程学院,南京 210094)

摘要:采用热轧制备 7075Al/MGY/7075Al 叠层复合材料,材料的拉伸强度达 300 MPa。基于经典叠层板理论计
算该材料的首层失效强度,其计算结果与试验结果吻合较好,表明经典叠层板理论可用于预测轧制制备的叠层复
合材料首层失效强度。结果表明:随着铝合金厚度的增加,镁基叠层复合材料的拉伸强度、弯曲刚度、压缩强度
和弯曲比强度增加,弯曲比刚度和拉伸比强度先增加后降低,且 7075Al/MGY/7075Al、7075Al/AZ31/7075Al 和
3003Al/ MGY/3003Al 叠层复合材料的拉伸比刚度增加,但 3003Al/ AZ31/3003Al 叠层复合材料的拉伸比刚度逐渐
减小。
关键词:轧制复合;镁基叠层复合材料;力学性能
中图分类号:; 文献标志码:A

Mechanical properties of magnesium-based posites
produced by hot rolling

YANG Ting-hui, ZHANG Xin-ping, GU Chun-fei, LUO Xiu-fang, YU Wei-heng, LIAO Yi-zhuan

(School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

Abstract: The tensile and bending properties of an 7075Al/MGY/7075Al tri-metallic laminates fabricated by hot rolling
were investigated at quasi-static strain rates. The first layer failure strength of the laminates is larger than 300 MPa. Based
on the classical laminate theory, the mechanical properties of the laminate were calculated. The prediction results of first
layer failure strength agree with the experimental results, indicating that the first layer failure strength of the tri-me