Prediction of critical forging penetration efficiency for 06Cr19Ni9NbN steel by dynamic recrystallization

IF 3.1 2区 材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING Journal of Iron and Steel Research(International) Pub Date : 2017-06-01 DOI:10.1016/S1006-706X(17)30097-3
Yong-xing Jiao, Jian-sheng Liu, Xing-wang Duan, Xiao-hua Zheng, Wen-wu He
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引用次数: 4

Abstract

In order to determine the critical forging penetration efficiency (FPE) of 06Cr19Ni9NbN steel, a new model was presented to describe critical FPE, which is significant to optimize the steel forging process. The plane strain compression tests were conducted to obtain the model and confirm its validity. The results indicated that the dynamic recrystallization (DRX) volume fraction increases and the grain size decreases with the rise of reduction ratio. Meanwhile, the compression process was simulated by DEFORM software. The tensile tests were conducted and the results demonstrated that the mechanical properties gradually become stable when the reduction ratio increases to 30%, 34% and 40% at 1200, 1100 and 1000°C, respectively. The calculated results based on this new model are consistent with experimental results, indicating that the model is suitable to predict the critical FPE for the steel.

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动态再结晶法预测06Cr19Ni9NbN钢临界锻件渗透效率
为了确定06Cr19Ni9NbN钢的临界锻透效率(FPE),提出了一种新的临界锻透效率模型,这对优化钢的锻造工艺具有重要意义。通过平面应变压缩试验得到了该模型,验证了模型的有效性。结果表明:随着还原比的增大,动态再结晶(DRX)体积分数增大,晶粒尺寸减小;同时,利用DEFORM软件对压缩过程进行了仿真。拉伸试验结果表明,在1200℃、1100℃和1000℃下,当收缩率分别提高到30%、34%和40%时,材料的力学性能逐渐趋于稳定。基于该模型的计算结果与试验结果吻合较好,表明该模型适用于预测钢的临界FPE。
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来源期刊
CiteScore
4.30
自引率
0.00%
发文量
2879
审稿时长
3.0 months
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