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首页> 外文期刊>Journal of Materials Engineering and Performance >Microstructure Analysis of Aluminum Alloy and Copper Alloy Circular Shells After Multiaxial Plastic Buckling
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Microstructure Analysis of Aluminum Alloy and Copper Alloy Circular Shells After Multiaxial Plastic Buckling

机译：多轴塑性屈曲后铝合金和铜合金圆壳的组织分析

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摘要

Aluminum and copper cylindrical shells were plastically buckled under quasi-static and dynamic loading conditions with an Absorption Compression-Torsion Plasticity (ACTP: Patent No. WO 2005090822) combined mechanical testing device. Optical microscopy and transmission electron microscopy (TEM) analysis were used to study the microscopic evolutions in the mechanically buckled aluminum and copper alloy samples. Optical microscopy showed evidence of the presence of second-phase particles in both the aluminum and copper alloys samples. Under dynamic loading aluminum samples showed more energy absorption as compared to copper samples. Material flow lines were more pronounced in the copper samples when observed by optical microscopy. The evidence that supports the increased energy absorption in the aluminum cylindrical shells can be supported by the TEM analysis more than the optical microscopy analysis. The TEM results showed highly oriented textured morphology with the presence of few dislocation cells structures and sub-structures.
机译：铝和铜制圆柱壳在准静态和动态载荷条件下通过吸收压缩-扭转可塑性（ACTP：专利号WO 2005090822）组合机械测试装置进行塑料弯曲。光学显微镜和透射电子显微镜（TEM）分析用于研究机械屈曲的铝和铜合金样品的微观演变。光学显微镜显示铝和铜合金样品中均存在第二相颗粒的证据。在动态载荷下，铝样品比铜样品显示出更多的能量吸收。通过光学显微镜观察时，铜样品中的材料流线更为明显。 TEM分析比光学显微镜分析更能支持铝圆柱壳中能量吸收增加的证据。 TEM结果显示出高度定向的织构形态，几乎没有位错细胞结构和亚结构。

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