Heat Resistance Increase of Chromium Cast Iron by Modifying

Maksim Levin; Edis Ten

doi:10.4028/www.scientific.net/AMM.729.64

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 729Heat Resistance Increase of Chromium Cast Iron by...

Heat Resistance Increase of Chromium Cast Iron by Modifying

Abstract:

The influence of chromium cast iron Cr8 treatment by Fe-45Si-6Mg-0,5REM modifier on the structure, phase transformation and heat resistance was studied experimentally.It is demonstrated that during modifying of chromium cast iron Cr8 the alloying effect takes place. The initial cast iron structure which consists of alloyed ferrite, carbide (Cr,Fe)₇C₃and cementite (Fe,Cr)₃C is transformed as in the process of chromium alloying according to modifier consumption increase. At the modifier consumption of 0,15 % the mass quota of cementite (Fe,Cr)₃C decreases from 3,2 % to zero, and the mass quota of carbide (Cr,Fe)₇C₃ increases from 20 % up to 30 %.

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Periodical:

Applied Mechanics and Materials (Volume 729)

Pages:

64-66

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.729.64

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Online since:

January 2015

Authors:

Maksim Levin*, Edis Ten

Keywords:

Alloyed Ferrite, Alloying Effect, Cementite, Chromium Carbide, Chromium Cast Iron, Heat Resistance, Modifying, Phase, Structure Transformation

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References

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