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Metallography...A Look Inside

机译:金相学...内幕

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Metallography is a valuable tool in the performance of failure investigations. The techniques utilized may be applied to metals, ceramics, composites and polymers; hence it is sometimes referred to as "materialography". This paper focuses on metallography as it applies to metal samples. The basic steps of metallography include sectioning, mounting, grinding, polishing and etching. For metals, metallography can be used to reveal microstructure, defects, grain size and grain flow among other features. The prepared specimen is analyzed through optical and scanning electron microscopy. This paper provides a brief history of metallography, a basic description of the process (as performed on metallic materials), and how the US Army Research Laboratory (ARL) uses metallography as a failure analysis tool.
机译:金相学是进行故障调查的宝贵工具。所使用的技术可以应用于金属,陶瓷,复合材料和聚合物;因此有时被称为“材料学”。本文主要研究金相学,因为它适用于金属样品。金相学的基本步骤包括切片,安装,研磨,抛光和蚀刻。对于金属,金相学可用于揭示微观结构,缺陷,晶粒尺寸和晶粒流动以及其他特征。通过光学和扫描电子显微镜分析所制备的样品。本文提供了金相的简要历史,对该过程的基本描述(如在金属材料上执行的过程)以及美国陆军研究实验室(ARL)如何使用金相作为故障分析工具。

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