Improvment of the quality and mechanical properties of a plain carbon steel by accumulative roll-bonding
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摘要: 在普通熱軋機上利用累積疊軋焊工藝對普碳鋼Q235進行了實驗研究,重點研究了壓下量(最大壓下量98%)、循環軋制次數等工藝參數對Q235鋼組織及性能的影響規律.結果表明:在普通熱軋機上應用累積疊軋焊工藝對同種材料進行焊合,不僅可以獲得連續、均勻的結合組織,而且使Q235鋼的組織得到明顯的細化,夾雜物分布更加均勻,材料的強度大幅度提高,抗拉強度達800MPa以上.Abstract: Industrial experiments of Q235 plain carbon steel by Accumulitive Roll-Bonding (ARB) process were carried out. The effects of deformation temperature, reduction (the max reduction 98%) and cyclic roling pass on the microstructure and mechanical properties of the steel were investigated. The results showed that a steel with ultrafine grains and higher mechanical properties could be obtained on a plain hot rolling mill by ARB process. It was also proved that the interracial microstructure was continuous and homogeneous because of the same material rolling.
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