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摘要:
The recrystallization behavior of cold-drawn 0.12 wt% C steel during annealing at temperatures 600°C and 650°C was investigated. Hardness tests were used to characterize the recrystallization kinetics. The micrographs of the steel were obtained using optical microscopy (OM) to characterize the grain microstructure of the non-treated and the annealed steel samples. Annihilation of dislocation defects occur within the soaking time of 5 - 10 minutes for all the deformed steel after annealing at 650°C. Specifically at 5 minutes soaking time the grains elongation is still observed indicating that reformation of grains is not taking place but recovery of the deformed grains. At the 10 minutes annealing time, new grains are observed to begin and full recrystallization is achieved at 15 minutes annealing time. At annealing time between 20 - 25 minutes, grains coarsening are observed indicating the onset of grain growth. The hardness of the material reduces with increasing annealing temperature for all the degree of cold drawn deformation. On the basis of the experimentally obtained hardness values, recrystallization increases with increasing degree of cold drawn deformation for the annealed steel. Recovery process was found to prolong in the 20% cold drawn steel as compared to the 55% cold drawn steel. The prolong recovery process is due to reduction in the driving force. Full recrystallization of the annealed steel is achieved at different soaking time depending on the degree of the cold drawn steel.
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篇名 Recrystallization Kinetics and Microstructure Evolution of Annealed Cold-Drawn Low-Carbon Steel
来源期刊 结晶过程及技术期刊(英文) 学科 工学
关键词 Drawn Steel RECOVERY RECRYSTALLIZATION Microstructure HARDNESS SOAKING Time
年,卷(期) 2013,(4) 所属期刊栏目
研究方向 页码范围 163-169
页数 7页 分类号 TG14
字数 语种
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研究主题发展历程
节点文献
Drawn
Steel
RECOVERY
RECRYSTALLIZATION
Microstructure
HARDNESS
SOAKING
Time
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研究分支
研究去脉
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期刊影响力
结晶过程及技术期刊(英文)
季刊
2161-7678
武汉市江夏区汤逊湖北路38号光谷总部空间
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109
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0
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