INVESTIGATIONS ON THE SILICATE INCLUSION AND FLAKES OF ACID OPEN-HEARTH STEEL.

• Kobayashi Sasaburo

  日本製鋼所室蘭工場

Bibliographic Information

Other Title

• 酸性平爐鋼のサンド並に白點に就て

Abstract

(A) Silicate inclusion.<BR>1) The author investigated on the silicate inclusion of steel from melt to ingot by Dickenson method. 2) Silicate are diminished when the slag composition is higher acidic and the oxygen contents of molten steel is small. 3) Also, silicates are decreased by the use of Si-Mn and Fe-Ti as deoxidiser.<BR>4) Addition of Fe-Mn during the boiling period is effective for diminition of silicate. 5) Generally, silicates of ingot show maximum value at inside of the bottom and outside of the top. 6) Large Mn-silicate remains in ingot when the addition of Mn is too much<BR>(B) Flakes.<BR>1) Existence of flakes can be detected by deep etching with alcoholic solution of HNO3. 2) Segregations, cracks and low-silica-silicates of ingot give much effect on the formation of flakes. 3) Forged steels in which flakes appear, have partially martensitic structure caused by segregation of alloying elements. 4) Slow cooling after forging is most effective for prevention of flakes.

Journal

• Tetsu-to-Hagane

  Tetsu-to-Hagane 22 (9), 688-702, 1936

  The Iron and Steel Institute of Japan

Keywords

• Materials Chemistry
• Metals and Alloys
• Physical and Theoretical Chemistry
• Condensed Matter Physics

Details

• CRID: 1390282680417578112
• NII Article ID: 110001841329
• NII Book ID: AN00151251
• DOI: 10.2355/tetsutohagane1915.22.9_688
• ISSN: 18832954
• ISSN: 00211575
• Web Site: https://www.jstage.jst.go.jp/article/tetsutohagane1915/22/9/22_9_688/_pdf
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed