Publisher: Trans Tech Publications
E-ISSN: 1662-7482|2015|729|64-66
ISSN: 1660-9336
Source: Applied Mechanics and Materials, Vol.2015, Iss.729, 2015-03, pp. : 64-66
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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)7C3 and 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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