鋼に含まれる珪素に關する研究 : (第 1 報)低ニツケル鋼の鋼質に及ぼす珪素の影響に就て

概要

論文の詳細を見る
Effect of silicon on the quality of structural low-alloy nickel steels melted in the acid open hearth furnace was studied and the results were as follows : (1) The silicon contained in steel produce a remarkable influence and the silicon in excess of about 0.23% causes a visible change in mechanical properties, grain size, hardenability and transformation-velocity. (2) As compared with steels with less than 0.23% Si, those with more than 0.23% Si have more refined grains, better hardenability, and when the larger sections are heat treated, the mechanical properties (particularly, Izod impact value) in the core are especially higher. (3) The macrostructure of the forging varies with the silicon content. Steels with less than 0.23% Si consist of dendrites and granular, masses while those with more than 0.25% Si are formed into a uniform structure of dendrites alone. (4) The quantity of sand inclusion has no reference to the silicon content in the range of 0.15∿0.35% Si, but the silica tends to decrease remarkably with the enhancement of the silicon.
社団法人日本鉄鋼協会の論文
1941-07-25