有色金属科学与工程2017，Vol.8Issue(1)：105-111,7.DOI:10.13264/j.cnki.ysjskx.2017.01.018
H65黄铜ECAP变形规律和第二相取向演变的数值模拟
Numerical simulation of deformation behavior and secondary phase orientation in H65 brass alloys ECAP
摘要
Abstract
The equal angular pressing (ECAP) of H65 brass was simulated by using the deform-2D software by analyzing the deformation regularity and the secondary phase orientation in the ECAP process. The combined ECAP deformation experiment verified the evolution of the secondary phase orientation. The results show that, ECAP deformation process can be divided into four states: initial deformation load is gradually increased, gradual deformation load is rapidly increased, stable deformation load is fluctuated within a certain range, finished deformation load is quickly decreased; the center equivalent strain distribution of the sample along with the increasement of extrusion passes is gradually stabilized, and concentrated within 3 to 9 mm in the center of samples. Even passes can be obtained relatively homogeneous deformation; the die that in corner of inner angle is the prior place to crack. The simulation of the second phase evolution almost the same with experiment, the second phase of the central sample after odd passes deformed, the angle between deformed second phase and extrusion direction is between 30 degrees during odd passes, center and edge orientation is different during even passes. The vertical second phase in the center sample, orientation remains the same during different passes.关键词
H65黄铜/ECAP变形/第二相/数值模拟Key words
H65 brass/ECAP/second phase/numerical simulation分类
矿业与冶金引用本文复制引用
张迎晖,彭凯,冯兴宇,胡玉军..H65黄铜ECAP变形规律和第二相取向演变的数值模拟[J].有色金属科学与工程,2017,8(1):105-111,7.基金项目
2015年江西省研究生创新专项资金项目(YC2015-S281) （YC2015-S281）
