Macrograph
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A macrograph or photomacrograph is an image taken at a scale that is visible to the naked eye, as opposed to a micrographic image, taken with a microscope. It is sometimes defined more precisely as an image at a scale of less than ten times magnification.[1]
Materials science
[edit | edit source]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.[2][3] 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.[4]
References
[edit | edit source]- ^ Macrograph EngNet Engineering Dictionary
- ^ Metallographic examinations Archived 2008-10-11 at the Wayback Machine TEC Eurolab, Accessed 12 May 2008
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Arthur J. McEvily (2001) Metal Failures: Mechanisms, Analysis, Prevention Wiley-IEEE p 90 Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
