Grain Refinement in Steels and the Application Trials in China
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概要
- 論文の詳細を見る
In order to control microstructure and performances of steel products, the investigation has been taken to the ways to refine grains in steels and the mechanisms, the availability in industrial production of ultrafine grain steel products, and the applications of ultrafine grain steel products. It is shown that strength of steels can be increased without detriment to ductility when ferrite grains are refined to less than 4 μm in low carbon steels. Based on the study of deformation induced transformation, a new rolling technology has been developed to refine ferrite grains in plain low carbon steel rebar and strip. Plain low carbon steel rebars of 400 MPa grade, with ferrite grains in the range of 4–8 μm, have been developed as the candidate to replace microalloyed steel rebars. High strength plain low carbon steel strips in the yield strength range from 345 to 420 MPa have been used for components conventionally made of microalloyed steels. Ultrafine grained microalloyed steel strip has also been developed. A new on-line cementite spheroidization softening technology has been studied for the wire rod production of medium carbon bolt steel. It is obvious that deformation could also induce pearlite transformation in eutectoid steel.
- 社団法人 日本鉄鋼協会の論文
- 2008-08-15
著者
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Dong Han
Central Iron And Steel Res. Inst. National Engineering Res. Center Of Advanced Steel Technol.
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Wang Maoqiu
Central Iron & Steel Research Institute
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Dong Han
Central Iron And Steel Research Institute National Engineering Research Center Of Advanced Steel Tec
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Wang Maoqiu
Central Iron And Steel Research Institute National Engineering Research Center Of Advanced Steel Tec
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SUN Xingjun
Central Iron and Steel Research Institute, National Engineering Research Center of Advanced Steel Te
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HUI Weijun
Central Iron and Steel Research Institute, National Engineering Research Center of Advanced Steel Te
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ZHANG Shulan
Central Iron and Steel Research Institute, National Engineering Research Center of Advanced Steel Te
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SHI Jie
Central Iron and Steel Research Institute, National Engineering Research Center of Advanced Steel Te
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Shi Jie
Central Iron And Steel Research Institute National Engineering Research Center Of Advanced Steel Tec
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Hui Weijun
Central Iron And Steel Research Institute National Engineering Research Center Of Advanced Steel Tec
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Sun Xingjun
Central Iron And Steel Research Institute National Engineering Research Center Of Advanced Steel Tec
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Zhang Shulan
Central Iron And Steel Research Institute National Engineering Research Center Of Advanced Steel Tec
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Shi Jie
National Engineering Research Center Of Advanced Steel Technology (nercast) Central Iron And Steel R
関連論文
- EELS and EDS Fracture Mode Analysis at Grain Boundaries of Cr-Mo Steel
- Grain Refinement in Steels and the Application Trials in China
- Development of Ultrafine Lamellar Ferrite and Austenite Duplex Structure in 0.2C5Mn Steel during ART-annealing