Improvement of Hot Ductility in the Nb-microalloyed Steel by High Temperature Deformation
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概要
- 論文の詳細を見る
Loss of hot ductility at the straightening stage of the continuous casting of HSLA steel is attributed to different microalloying elements, in particular Nb. However, such elements are essential for the desired mechanical characteristics of final product. Since the chemistry cannot be altered to alleviate the problem, thermomechanical processing was studied in order to improve the hot ductility. A Nb-microalloyed steel was examined. The thermal history occurring in the continuous casting process was taken into account as well. Firstly, it was noticed that the steel has a low hot ductility after being subjected to in situ melting followed by the thermal schedule. Then, the effect of deformation applied in the vicinity of the δ→γ transformation, while the thermal schedule was being executed, was investigated. Such deformation appeared to improve the hot ductility considerably. Finally, the mechanism of such improvement in the hot ductility was discussed.
- 社団法人 日本鉄鋼協会の論文
- 2005-05-15
著者
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Yue Steve
Mcgill Univ. Qc Can
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Yue Steve
Department Of Metals And Materials Engineering Mcgill University
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ZARANDI Faramarz
Department of Metals and Materials Engineering, McGill University
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Zarandi Faramarz
Mcgill Univ. Qc Can
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Zarandi Faramarz
Department Of Metals And Materials Engineering Mcgill University
関連論文
- Effect of Thermomechanical Processing on the Hot Ductility of a Nb-Ti Microalloyed Steel
- Improvement of Hot Ductility in the Nb-microalloyed Steel by High Temperature Deformation
- Mechanism for Loss of Hot Ductility Due to Deformation during Solidification in Continuous Casting of Steel
- Effect of Microstructure on Static and Dynamic Mechanical Property of a Dual Phase Steel Studied by Shear Punch Testing
- The Effect of Boron on Hot Ductility of Nb-microalloyed Steels
- Impact Toughness and Tensile Properties Improvement through Microstructure Control in Hot Forged Nb-V Microalloyed Steel