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首页> 外文会议>TMS annual meeting exhibition >IMPACT OF ULTRASONIC IMPACT TREATMENT ON A 5456 ALUMINUM ALLOY CHARACTERIZED THROUGH MICRO-SPECIMEN TESTING AND X-RAY TOMOGRAPHY
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IMPACT OF ULTRASONIC IMPACT TREATMENT ON A 5456 ALUMINUM ALLOY CHARACTERIZED THROUGH MICRO-SPECIMEN TESTING AND X-RAY TOMOGRAPHY

机译：超声冲击处理对5456铝合金的显微试样和X射线断层扫描表征

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摘要

Ultrasonic impact treatment (UIT) is a surface treatment that causes severe plastic deformation (SPD). UIT gives excellent parameter control and has a high energy efficiency, unlike similar processes such as shot peening. The objective of this work is to investigate the measured hardness, strength, and void properties of an ultrasonically impacted 5456-J116 aluminum. Micro-indentation is used to map the hardness properties while microsample specimens directly measure tensile mechanical properties. The micro species (3mm in length by lmm wide with a gage section of 250 um~2) are made at varying distances from the UIT treated surface and tested to characterize the Young's modulus and yield strength. Voids in the gage section of the micro specimens are analyzed before and after testing using novel X-ray tomography. These void characteristics are linked to the yield and plastic deformation behavior of the material.
机译：超声波冲击处理（UIT）是一种导致严重塑性变形（SPD）的表面处理。与诸如喷丸硬化之类的类似过程不同，UIT提供了出色的参数控制并具有很高的能源效率。这项工作的目的是研究经超声冲击的5456-J116铝的测量硬度，强度和孔隙性能。显微压痕用于绘制硬度特性，而显微样品则直接测量拉伸机械性能。在距UIT处理过的表面不同距离处制作了微观物种（长3毫米x 1毫米宽，标距截面为250 um〜2），并进行了测试，以表征杨氏模量和屈服强度。使用新颖的X射线断层摄影术在测试之前和之后分析微样品的量具部分中的空隙。这些空隙特征与材料的屈服和塑性变形行为有关。

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