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首页> 外文期刊>Journal of Materials Engineering and Performance >Correlation between Microstructure and Mechanical Properties of 6063-O Aluminum Alloy and IS 2062 Mild Steel under High Strain Rate Shear Loadings
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Correlation between Microstructure and Mechanical Properties of 6063-O Aluminum Alloy and IS 2062 Mild Steel under High Strain Rate Shear Loadings

机译：高应变速率剪切载量下的6063-O铝合金微观结构与机械性能与力学性能的相关性

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摘要

An experimental study for the characterization of 6063-O aluminum alloy and IS 2062 mild steel materials under high strain rate shear loading was conducted. A microstructural study of the tested samples was performed to understand the correlation between the microstructure and mechanical properties. Aluminum alloy 6063-O and IS 2062 mild steel specimens were subjected to shear strain rates in the range of 120-200 and 100-280 s(-1), respectively. An enhancement in the shear strength is observed for both the materials tested at high strain rates. The microstructural study on the fracture surfaces of the aluminum alloy and the mild steel test coupons was carried out using scanning electron microscopy (SEM). Grain size refinement was observed with increasing strain rate indicating a strong dependence of mechanical properties on the grain size evolution during testing. Changes in microstructural properties at different shear strain rates and its effect on the mechanical properties are presented.
机译：进行了6063-O铝合金表征的实验研究，是高应变速率剪切负载下2062温和钢材。进行测试样品的微观结构研究以了解微观结构和机械性能之间的相关性。铝合金6063-O分别在120-200和100-280秒（-1）的范围内进行剪切应变率。对于以高应变率测试的材料，观察到剪切强度的增强。使用扫描电子显微镜（SEM）进行铝合金与温和钢试样的断裂表面的微观结构研究。随着应变速率的增加，观察到晶粒尺寸细化，表明在测试期间晶粒尺寸进化的力学性能强烈依赖性。提出了不同剪切应变率的微观结构性质的变化及其对机械性能的影响。

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