ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The carbide and graphite formation and redistribution of alloy elements duringsolidification were investigated on Ni-hard type cast iron (Fe-C-Si-Ni-Cr-Mo) to develop higherquality rolls for hot steel strip mills. By the control of Ni and Si contents of iron, eutectic graphiteflakes crystallize even in cast irons containing strong carbide formers such as V, Nb and Cr. Thecrystallization of Ni-hard type cast iron with V and Nb proceeds in the order of primary , + MC,+ M3C and + graphite eutectic. Since the influence of each alloying element on graphite formationis estimated based on the solubility of C in molten iron, the change in graphite forming tendency ofresidual liquid is evaluated by the parameter expressing the solubility limit of C to molten iron. Theamount of graphite increases with the decreasing of solubility parameter. In addition, inoculation withferrosilicon effectively increases the graphite flakes
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/17/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.1023.pdf
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