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有色金属工程:2021,(3):-
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玻璃钢/镁合金复合板的层间剪切性能研究
张玺1, 刘刚1, 解芳1, 刘蒙恩1, 胡发平2
(1.南阳理工学院 智能制造学院;2.重庆大学 材料科学与工程学院)
Study on Interlaminar Shear Properties of GFRP/Mg Laminate
ZHANG Xi1, LIU Gang1, XIE Fang1, LIU Mengen1, HU Faping2
(1.School of Intelligent Manufacturing,Nanyang Institute of Technology;2.College of Materials Science and Engineering,Chongqing University)
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投稿时间:2020-07-31    修订日期:2020-08-04
中文摘要: 采用扫描电镜、短梁弯曲法对基于不同表面处理镁合金制备的玻璃钢/镁合金复合板(Glass Fiber Reinforced Plastic/Magnesium Laminate,GFRP/Mg)的界面形貌和层间剪切强度进行了观察、测试和分析。结果表明,经磷酸盐处理和高锰酸盐处理后,镁合金的表面能分别比仅打磨处理提高了约53.7%和64.6%,其表面润湿性得到了明显改善。但镁合金表面处理对GFRP/Mg复合板的层间剪切强度影响较小,基于三种表面处理镁合金制备的GFRP/Mg复合板的层间剪切强度相近。相对的,GFRP/Mg复合板的层间剪切强度受镁合金表面粗糙度的影响更大一点。当镁合金的表面粗糙度为0.92μm时,GFRP/Mg复合板的层间剪切强度比镁合金表面粗糙度为0.23μm时提高了13%左右。GFRP/Mg复合板的层间剪切失效主要以界面粘接破坏为主。
Abstract:The interfacial morphology and interlaminar shear strength of glass fiber reinforced plastic/magnesium laminate (GFRP/Mg) were observed, tested and analyzed by scanning electron microscope and short beam bending teat. The results show that the surface energy of magnesium alloy treated by phosphating and permanganate are about 53.7% and 64.6% higher than that by abrasion-only, respectively, and the surface wettability of magnesium alloy are obviously improved by phosphating and permanganate. However, the surface treatment of magnesium alloy has little influence on the interlaminar shear strength of GFRP/Mg laminate. The interlaminar shear strengths of GFRP/Mg laminates based on three surface treated magnesium alloys are similar. The surface roughness of magnesium alloy has a great influence on the interlaminar shear strength of GFRP/Mg laminate. When the surface roughness of magnesium alloy is 0.92 μm, the interlaminar shear strength of GFRP/Mg laminate is about 13% higher than that of magnesium alloy with surface roughness of 0.23 μm. When interlaminar shear failure occurs, the GFRP/Mg laminate is mainly destroyed by interface bonding failure.
文章编号:     中图分类号:TB333    文献标志码:
基金项目:国家自然科学基金(51605230);南阳理工学院2018年度博士科研启动项目(510074)
引用文本:
张玺,刘刚,解芳,刘蒙恩,胡发平.玻璃钢/镁合金复合板的层间剪切性能研究[J].有色金属工程,2021,(3):.

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