リミングアクションについて (I) : リムド鋼塊の凝固機構(その 1)
スポンサーリンク
概要
- 論文の詳細を見る
About the solidification of rimming-steel ingot, some factors controlling its mechanism and their correlation were discussed by analysing the segregation curve which were obtained from many small ingots examined. The results were as follows ; 1) From the mathematical treatment of segregation curve, its mechanism was represented by next equation, that is : C_s/C_l=1-{3.2(1-P)^2+0.63(1-P)}・(-εX^4+0.00155/V)・a・G where ; C_s=Concentration of the element in the solid forming at any instant C_l=Concentration of the element in the liquid remaining at any instant P=Distribution coefficient X=Fraction of cross-section solidified V=Rate of solidification G=Value of rimming action ε=A constant affected by ingot size and others a=A constant representing the distribution of G in any height from top level of ingot 2) As the mechanism of solidification, the author explained as follows ; Rimming action strongly influenced the effect of enriched film and controlled the entrapment of the solute by the dendritic crystal. The entrapment had a great relationship, with rate of solidification, especially during the first-half of solidification of the rim zone, and at the time solidification proceeded over the latter, physical condition of remaining liquid could not be ignored. These factors and many others had a correlation each other and so the condition of rimming action was concluded to be the principal factor governing the nature of rimming steel ingot.
- 社団法人日本鉄鋼協会の論文
- 1954-04-25
著者
関連論文
- 57 傾注式大型平爐に於ける燃焼に關する一考察(日本鐵鋼協會第 44 回講演大會講演大要)
- 新年のご挨拶
- 創立 70 周年記念特集号「鉄鋼技術の進歩」刊行に際して
- 新年のご挨拶
- 会長就任にあたつて
- 製鋼部会の活動状況について
- 「鋼精錬過程の理論」, V. I. ヤボイスキー著, 日本学術振興会, B5 版, 350 ページ
- これからの技術開発
- リミグンアクションについて (I) : リムド鋼塊の凝固機構(その 2)
- リミングアクションについて (I) : リムド鋼塊の凝固機構(その 1)
- 24 リムド鋼塊の凝固に於けるリミングアクションの分布及び二, 三の現象について(日本鐵鋼協會第 45 回講演大會講演大要)