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Macrograph A macrograph or photomacrograph is an image taken at a scale that is visible to the naked eye, as opposed to a micrographic image. It is sometimes defined more precisely as an image at a scale of less than ten times magnification.〔(Macrograph ) EngNet Engineering Dictionary〕 ==Materials science== This term is often applied to a three-dimensional image taken of a material using a low-power stereomicroscope. These images are used in materials science, particularly in the study of stress fractures in metals.〔(Metallographic examinations ) TEC Eurolab, Accessed 12 May 2008〕 This method can also be used to assay the fine structure of steel, in a standardized test called the Baumann method that creates a sulfur print showing the amount and distribution of sulfur inclusions through the metal structure.〔Arthur J. McEvily (2001) (Metal Failures: Mechanisms, Analysis, Prevention ) Wiley-IEEE p 90 ISBN 0-471-41436-0〕
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Macrograph」の詳細全文を読む
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