闭开联合楔横轧微观组织温度的影响规律
PDF下载 (306)陈 吉,束学道,周子荣.闭开联合楔横轧微观组织温度的影响规律[J].宁波大学学报(理工版),2019,32(3):55-60.DOI:
CHEN Ji,SHU Xue-dao*,ZHOU Zi-rong.Effect of rolling temperature on microstructure of closed-opencross wedge rolling[J].Journal of Ningbo University(Natural Science & Engineering Edition),2019,32(3):55-60.DOI:
| Title: | Effect of rolling temperature on microstructure of closed-opencross wedge rolling |
| 作者: | 陈 吉, 束学道, 周子荣 |
| Author(s): | CHEN Ji, SHU Xue-dao*, ZHOU Zi-rong |
| 关键词: | 闭开联合; 楔横轧; 微观组织 |
| Keywords: | rolling temperature; closed-open joint; cross wedge rolling; microstructure |
| 分类号: | TG335.19 |
| 文献标识码: | A |
| 摘要: | 以42CrMo钢为研究材料, 在Deform-3D软件中建立了闭开联合热力微观组织耦合的有限元模型通过单因素方法, 轧制温度对轧件平均晶粒尺寸的影响规律降低, 轧件越有利于结晶, 平均晶粒尺寸越闭式轧制后晶粒随着温度的降低整体得到细化15％, 验证有限元模拟的可靠性. |
| Abstract: | In order to ensure the mechanical properties of the closed-open cross wedge rolling products, this paper uses 42CrMo as the research material, and establishes the finite element model of the combined heat-force-micro-structure coupling with Deform-3D software. The influence of rolling temperature on the average grain size of the rolled piece was analyzed by single factor method. It was obtained that the rolling piece was more favorable for crystallization and the average grain size was smaller as the rolling temperature decreased. After closed rolling, the grain size is getting refined as the temperature decreases. In the open rolling stage, the grain size does not change significantly with the increasing of temperature. Through the comparison of metallographic experiments and simulations, the trend of the two curves is consistent with an error of 15％, which verifies the reliability of the finite element simulation. |
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| 备注/Memo: | 收稿日期: 2018?12?20. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 国家自然科学基金（51475247）; 浙江省自然科学基金重点项目（LZ17E050001）. 第一作者: 陈吉（1994－）, 男, 浙江宁波人, 在读硕士研究生, 主要研究方向: 金属塑性成形技术. E-mail: 751462449@qq.com *通信 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
