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.[1]
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.[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
- ^ Macrograph EngNet Engineering Dictionary
- ^ Metallographic examinations TEC Eurolab, Accessed 12 May 2008
- ^ Milan, M.T. (2004). "Failure analysis of a SAE 4340 steel locking bolt". Engineering Failure Analysis. 11 (6): 915–924. doi:10.1016/j.engfailanal.2003.12.003. Retrieved 2008-05-12.
{{cite journal}}: Unknown parameter|coauthors=ignored (|author=suggested) (help) - ^ Arthur J. McEvily (2001) Metal Failures: Mechanisms, Analysis, Prevention Wiley-IEEE p 90 ISBN 0-471-41436-0
External links
- http://pphotography-blog.blogspot.com/2011/04/beautiful-water-drops-by-nevena-uzurov.html
- http://www.venkane.com/photo/324484.jpg
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