Corrosion Mechanism of Commercial MgO-C Refractories in Contact with Different Gas Atmospheres

スポンサーリンク

概要

• 論文の詳細を見る

• Corrosion of MgO–C refractories in different gas atmospheres consisting of air, Ar, CO or Ar/CO was studied in laboratory experiments. In total, 103 experiments were carried out in the temperature range 1173 to 1773 K and for holding times between 2 to 120 min. The reaction rate of the MgO–C material was determined from measurements of the weight loss of the samples. The results showed that the refractory weight loss increased with an increased temperature or an increased holding time. The thermodynamic conditions and the experimental results showed that magnesium gas and carbon monoxide gas should form during ladle refining of steel when the refractory material consists of MgO–C. It was suggested that the reaction rate is directly dependent on the oxygen potential in the ambient atmosphere.

• 社団法人 日本鉄鋼協会の論文
• 2008-06-15

著者

• Jönsson Pär

  Division of Applied Process Metallurgy, Royal Institute of Technology

• Jonsson Par

  Division Of Applied Process Metallurgy Department Of Materials Science And Engineering Royal Institu

• Brabie Voicu

  Dalarna University

• JANSSON Sune

  Arvika Gjuteri AB

• Jonsson Par

  Division Of Applied Process Metallurgy Royal Institute Of Technology

• Brabie Voicu

  Dalarna Univ.

関連論文

• Physical-modeling Study of Fluid Flow and Gas Penetration in a Side-blown AOD Converter
• Mixing Time in a Side-Blown Converter
• Fluid Flow in a Combined Top and Bottom Blown Reactor
• Effect of Oxide Catalyst on Heterogeneous Nucleation in Fe-10mass%Ni Alloys
• Effect of Nozzle Swirl Blade on Flow Pattern in Runner during Uphill Teeming
• Some Aspects on Grain Refining Additions with Focus on Clogging during Casting
• Corrosion Mechanism of Commercial MgO-C Refractories in Contact with Different Gas Atmospheres
• Effect of Entrance Nozzle Design on the Fluid Flow in an Ingot Mold during Filling
• Effect of Interfacial Energy on the Drain Sink Formation Height
• Prediction and Disarming of Drain Sink Formation during Unsteady-state Bottom Teeming
• Development of Flow Field and Temperature Distribution during Changing Divergent Angle of the Nozzle When Using Swirl Flow in a Square Continuous Casting Billet Mould
• Design of Swirling Flow Submerged Entry Nozzles for Optimal Head Consumption between Tundish and Mold
• A Mathematical Model of an Impinging Air Jet on a Water Surface
• Dynamic Coupling of Computational Fluid Dynamics and Thermodynamics Software : Applied on a Top Blown Converter
• Size Distribution of Deoxidation Products with Ti, Pr and Ti/Pr in Fe-10mass%Ni Alloy
• Mixing Time in a Side-Blown Converter
• The Use of Fundamental Process Models in Studying Ladle Refining Operations
• Effect of Entrance Nozzle Design on the Fluid Flow in an Ingot Mold during Filling
• Methodological Progress for Computer Simulation of Solidification and Casting
• Simulation of the Steel Sampling Process
• Effect of Temperature on Oxygen Activity during Ladle Treatment
• A First Attempt to Implement a Swirl Blade in Production of Ingots
• A Numerical Study of Swirl Blade Effects in Uphill Teeming Casting
• The Use of Coated Pellets in Optimising the Blast Furnace Operation
• The Effect of Zirconium Disilicide (ZrSi_2) Additions on the Carbon Oxidation Behavior of Alumina/Graphite Refractory Materials
• Mathematical Modeling of Initial Filling Moment of Uphill Teeming Process Considering a Trumpet
• Some Aspects on Grain Refining Additions with Focus on Clogging during Casting
• Modeling of Initial Mold Filling with Utilization of Swirl Blades

もっと見る 閉じる

スポンサーリンク