Solubility of Titanium Carbosulfide in Austenite.

• Iorio Luana E.

  GE Corporate Research and Development

• Garrison, Jr. Warren M.

  Department of Materials Science and Engineering, Carnegie Mellon University

抄録

A titanium carbosulfide solubility product of log [Ti][C]^0.5[S]^0.5 = -14 646/T15.51 and a Gibbs free energy of formation for titanium carbosulfide of Δ°G_{Ti₄C₂S₂} = -1 121.9+0.196 T kJ/mol were calculated from dissolution temperature experiments using a series of titanium-modified secondary hardening ultra-high strength steels.<BR>The presence of other precipitates such as TiN, TiC and TiS could be neglected for this class of steels. The effect of the alloying additions on the activity of carbon and hence on the dissolution temperature of titanium carbosulfide was also found to not be significant for these steels. The experimentally determined solubility product and Gibbs free energy of formation are compared with previously published data for titanium carbosulfide.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 42 (5), 545-550, 2002

  一般社団法人 日本鉄鋼協会

キーワード

• titanium carbosulfide
• solubility product
• Gibbs free energy of formation
• secondary hardening
• ultra-high strength steels

詳細情報

• CRID: 1390001206453988736
• NII論文ID: 10008223117
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.42.545
• COI: 1:CAS:528:DC%2BD38XltVygtrw%3D
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational1989/42/5/42_5_545/_pdf
• 本文言語コード: en
• データソース種別:
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• 抄録ライセンスフラグ: 使用不可