Conclusions
Different types of inclusions have various effects on the type of microstructure formed. Sulfides are the most active. Corundum and carbides affect the structure to a lesser extent than sulfides.
Relatively large sulfide inclusions, with an expansion coefficient differing from that of the base metal, create stress fields during cooling (heating), inducing the formation of lattice defects visible as etch pits and subboundaries.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 9, pp. 43–44, September, 1970.
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Leshchinskaya, R.P., Samartseva, G.P. Nonmetallic inclusions in alloys of the YuNDK24 type. Met Sci Heat Treat 12, 761–762 (1970). https://doi.org/10.1007/BF00652728
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DOI: https://doi.org/10.1007/BF00652728