鉄鋼スクラップと元素循環に関する考察

概要

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From the material flow of various elements, many elements are consumed as alloying elements for steel. It is well known that the excellent characteristics of steel are generated by the precise addition of alloying elements. Although steel is recycled as steel scrap, in the steel scrap, the values of the added alloying elements are not considered and the scraps are reused in low grade steel. In these sense, steel is a place where the elements play active parts but also the place for the elements as graveyard. In this paper, the relation of element circulation and steel scrap recycling was discussed based on this stand point, and the following results were obtained; 1) Contribution of the steel scrap recycling on the element circulation is not effective except the austenitic stainless steel. 2) By the thermodynamic consideration, the possibility to extract the alloying elements as ferro-alloy was found.報文Original Paper
東北大学の論文