Features of Forming of the Cast Preparations Received at External Influence and Suspension Filling of Medium-alloy Steel

[摘要] In this paper, the influence of different impacts on cast steel allow are considered. We studied the effect of an external force applied during casting of high-strength steel alloy into a thing-wall metal sheath mold with external cooling and suspension molding as well. We studied macro- and micro-structure of obtained samples, mechanical properties at normal (+20C) and increased (+350C) temperature as well. As a reference metal, we used conventionally casted samples. We showed that the main advantage of proposed technology is a better uniformity of mechanical properties along the cross-section and height of the samples, especially elasticity and impact toughness. It was also shown, that different external impacts applied during casting allow to control the metal structure and mechanical properties at different operating temperature.

[发布机构] Nizhny Novgorod State Technical University N.a. R.E. Alekseev, Minin st. 24, Nizhny Novgorod; 603950, Russia^1

[关键词] Cast steel;External cooling;External force;External influences;Metal structures;Operating temperature