Micrograph Library
Browse the libraryAdvanced searchSystemsCompositionsTechniquesKeywordsPhase diagramsHelpPreferencesAbout the micrograph libraryTerms of useContribute micrographs!FeedbackLinksCredits Print this page
Full Record for Micrograph 797
- Micrograph no
- 797
- Brief description
- Wear-resistant high-chromium cast iron
- Keywords
- alloy
, austenite , carbide, carbon, cast iron , chromium, dendrite , equiaxed , graphite , iron, martensite , metal, molybdenum, nickel - Categories
- Metal or alloy
- System
- Fe-C-X
- Composition
- Fe, C 2.6, Cr 17, Mo 2, Ni 2 (wt%)
- Standard codes
- Reaction
- Processing
- Applications
- Sample preparation
- The sample was etched using Villela's reagent, which is a mixture of picric acid, hydrochloric acid and ethanol.
- Technique
- Reflected light microscopy
- Length bar
- 40 μm
- Further information
- This cast iron is used in circumstances where a very high wear resistance is desirable. For example, during the violent crushing of rocks and minerals. It contains a combination of very strong carbide-forming alloying elements. The white phase is a chromium-rich carbide known as M7C3. The matrix consists of dendrites of austenite, some of which may have transformed into martensite. There may also be relatively small quantities of other alloy carbides. The material from which these micrographs were obtained was kindly provided by Dr Arnoldo Bedolla-Jacuinde of Mexico. Details of the iron have been published in the International Journal of Cast Metals Research, 13 (2001) 343-361.
Source: http://www.msm.cam.ac.uk/phase-trans/2001/adi/cast.iron.html. - Contributor
- Dr M A Yescas-Gonzalez
- Organisation
- Department of Materials Science and Metallurgy, University of Cambridge
- Date
- 18/07/03
- Licence for re-use
DoITPoMS standard terms of use- Related micrographs