基于克里金方法的6013铝合金多道次降温热压缩变形行为建模
Modeling for Multi-pass Temperature-Drop Hot Compression Behavior of 6013 Aluminum Alloy Based on Kriging Method
摘 要
为量化分析多道次降温热压缩变形过程中流变应力在加工参数影响下的变化规律, 以实现对产品成型过程的合理控制, 研究了6013铝合金的多道次降温热压缩变形行为; 基于试验数据和克里金方法构建了该变形行为的模型。结果表明: 在多道次降温热压缩变形过程中, 变形温度对流变应力具有显著影响, 流变应力随着变形温度的降低呈台阶状升高; 基于克里金方法构建的多道次降温热压缩变形行为模型具有较高的预测精度与稳定性, 能够很好地描述多道次热压缩变形过程。
多道次热压缩变形
建模
克里金方法
aluminum alloy
multi-pass hot compression deformation
modeling
Kriging method
Abstract
In order to quantitatively analyze change rules of flow stress affected by processing parameters during multi-pass hot compression deformation, and realize the reasonable control on forming process, multi-pass temperature-drop hot compression deformation behavior of 6013 aluminum alloy was studied. Based on experimental data and Kriging method, a model was constructed for describing the deformation behavior. The results show that flow stress is significantly affected by deformation temperature during multi-pass temperature-drop hot compression deformation. With the increase of deformation temperature, the flow stress increases in approximately stair-stepping shape. The hot compression deformation behavior model built based on Kriging method has relatively high prediction accuracy and stability, and it can describe the multi-pass hot compression deformation process very well.
中图分类号 TG146.21 TH142.3 DOI 10.11973/jxgccl201603022
所属栏目 物理模拟与数值模拟
基金项目 国家自然科学基金面上基金资助项目(51475156); 国家重点科技项目(2014ZX04002071); 广西有色金属及特色材料加工重点实验室开放基金资助项目(GXKFJ14-08)
收稿日期 2015/3/2
修改稿日期 2015/12/20
网络出版日期
作者单位点击查看
备注肖罡(1983-), 男, 江西武宁人, 博士研究生。
引用该论文: XIAO Gang,YANG Qin-wen,XU Zheng-bing,LI Luo-xing,ZENG Jian-min. Modeling for Multi-pass Temperature-Drop Hot Compression Behavior of 6013 Aluminum Alloy Based on Kriging Method[J]. Materials for mechancial engineering, 2016, 40(3): 89～92
肖罡,杨钦文,许征兵,李落星,曾建民. 基于克里金方法的6013铝合金多道次降温热压缩变形行为建模[J]. 机械工程材料, 2016, 40(3): 89～92
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参考文献
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【3】POURAHMAD P, ABBASI M. Materials flow and phase transformation in friction stir welding of Al 6013/Mg［J］. Transactions of Nonferrous Metals Society of China, 2013, 23(5): 1253-1261.
【4】陈康敏, 艾世杰, 许晓静. 固溶温度对6013铝合金组织和抗晶间腐蚀性能的影响［J］. 材料热处理学报, 2013, 34(4): 46-50.
【5】SHI B L, LUO T J, WANG J, et al. Hot compression behavior and deformation microstructure of Mg-6Zn-1Al-0.3Mn magnesium alloy［J］. Transactions of Nonferrous Metals Society of China, 2013, 23(9): 2560-2567.
【6】张志正, 王春旭, 黄顺喆, 等. 镍微合金化9310钢的高温热变形行为［J］. 机械工程材料, 2014,38(10): 64-68.
【7】CAO Y, DI H S, MISRA R D K, et al. On the hot deformation behavior of AISI 420 stainless steel based on constitutive analysis and CSL model［J］. Materials Science and Engineering: A, 2014,593:111-119.
【8】王火生, 傅高升, 陈永禄, 等. 铝锰镁合金热压缩变形的流变应力曲线与本构方程［J］. 机械工程材料, 2014, 38(5): 95-98.
【9】李俊鹏, 沈健, 闫晓东, 等. 多道次热压缩过程中7050铝合金的再结晶行为［J］.中国有色金属学报,2009,19(10):1754-1758.
【10】DING H L, HIRAI K, KAMADO S. Microstructure characteristics during the multi-pass hot rolling and their effect on the mechanical properties of AM50 magnesium alloy sheet［J］. Materials Science and Engineering: A, 2010, 527: 3379-3385.
【11】杨现亮, 潘家冰. Q235钢动态再结晶过程中的温度变化和变形道次间的静态软化［J］.机械工程材料,2011,35(1):97-99.
【12】LIN Y C, CHEN X M. A critical review of experimental results and constitutive descriptions for metals and alloys in hot working［J］. Materials & Design, 2011, 32: 1733-1759.
【13】顾纪超. 基于混合元模型的新型全局最优化方法及其在汽车设计中的应用［D］. 长沙: 湖南大学, 2011: 5-7.
【14】MATHERON G. Principals of geostatistics［J］. Economic Geology, 1963, 58(8): 1246-1266.
【15】FANG K T, LI R, SUDJIANTO A. Design and modeling for computer experiments［M］. Boca Raton: Chapman & Hall/CRC, 2006.
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