本文選題：中錳鋼 + 熱加工圖　； 參考：《熱加工工藝》2017年05期

【摘要】：在MMS-300熱力模擬試驗機上進行了單道次壓縮實驗,研究了一種超低碳中錳鋼熱變形行為及熱加工圖特點。結合金相組織分析了各加工失效區(qū)域主要失穩(wěn)特性及失穩(wěn)原因。結果表明:基于動態(tài)材料模型理論的熱加工圖及其失穩(wěn)判據在實驗中錳鋼中有良好的適用性。根據材料功率耗散系數及流變失穩(wěn)判據確定的最佳加工工藝參數域為1050~1150℃和應變速率0.01~0.1 s~(-1)。在該區(qū)域內,實驗鋼發(fā)生完全動態(tài)再結晶,鋼的功率耗散系數在30%~44%。
[Abstract]:A single pass compression experiment was carried out on a MMS-300 thermal simulation machine. The hot deformation behavior and hot working diagram of a kind of ultra-low carbon medium manganese steel were studied. Combined with metallographic structure, the main instability characteristics and the causes of failure zone are analyzed. The results show that the hot working diagram based on dynamic material model theory and its instability criterion have good applicability in the experiment of manganese steel. According to the power dissipation coefficient of material and the criterion of rheological instability, the optimum processing parameter range is 1050 ~ 1150 鈩，

本文編號：1813072