Simulation of friction stir additive process and its micro-properties prediction

被引：0
|
作者：
Li R.-Q. [1 ]
Wu Q. [1 ]
Long L.-C. [1 ]
机构：
[1] Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing
来源：
Wu, Qi (qiwu@bjut.edu.cn) | 1846年 / Central South University of Technology卷 / 30期
基金：
中国博士后科学基金;
关键词：
Friction stir additive manufacturing; Grain size; Micro-hardness; Numerical simulation;
D O I：
10.11817/j.ysxb.1004.0609.2020-39592
中图分类号：
学科分类号：
摘要：
The friction stir additive manufacturing (FSAM) is a new solid-state manufacture technology. The re-stirring process is a remarkable feature of FSAM. Under the action of severe deformation and thermal coupling, the grains of base metal were crushed and refined layer by layer to form a new recrystallized structure, and finally an additive forming component was formed. AZ31 magnesium alloy sheet for FSAM process was taken as the research object. Firstly, computational fluid dynamics model of FSAM was established. The influence of rotation speed on material rheology, temperature field and strain rate was studied, and compared with the experimental results. Secondly, the Zener-Hollomon parameters of the hot deformation process of the magnesium alloy material in the additive zone were calculated. Then, the Z parameters and the recrystallized grain size of in additive zone were correlated by empirical formula method. Finally, combined with the micro-hardness test results at 1000 r/min, a fast prediction algorithm for the recrystallized microstructure of the FSAM was proposed. The results indicate that, with the increase of layers, the average grain size and the average hardness in the additive zone decrease. With the increase of the rotation speed, the strain rate and recrystallized grain size of the material in the additive zone gradually increase, but the micro-hardness shows a downward trend. © 2020, Science Press. All right reserved.
引用
收藏
页码：1846 / 1854
页数：8
相关论文
共 33 条
  • [1] CHANG J K, HE J K, MAO M, ZHOU W X, LEI Q, LI X, LI D C, CHUA C K, ZHAO X., Advanced material strategies for next-generation additive manufacturing, Materials, 11, 1, pp. 166-185, (2018)
  • [2] YANG Y, SONG X, LI X J, CHEN Z Y, ZHOU C, ZHOU Q F, CHEN Y., Recent progress in biomimetic additive manufacturing technology: from materials to functional structures, Advanced Materials, 30, 36, pp. 1706539-1706573, (2018)
  • [3] QIN L L, CHEN C J, ZHANG M, YAN K, CHENG G P, JING H M, WANG X N., The microstructure and mechanical properties of deposited-IN625 by laser additive manufacturing, Rapid Prototyping Journal, 23, 6, pp. 1119-1129, (2017)
  • [4] LEARY M, PIOLA R, SHIMETA J, TOPPI S., Additive manufacture of anti-biofouling inserts for marine applications, Rapid Prototyping Journal, 22, 2, pp. 416-434, (2016)
  • [5] DEAN D, MOTT E, LUO X Y, BUSSO M, WANG M O, VORWALD C, SIBLANI A, FISHER J P., Multiple initiators and dyes for continuous Digital Light Processing (cDLP) additive manufacture of resorbable bone tissue engineering scaffolds, Virtual and Physical Prototyping, 9, 1, pp. 3-9, (2014)
  • [6] PALANIVEL S, NELATURU P, GLASS B, MISHRA R S., Friction stir additive manufacturing for high structural performance through microstructural control in an Mg based WE43 alloy, Materials & Design, 65, pp. 934-952, (2015)
  • [7] SHARMA A, BANDARI V, ITO K, KOHAMA K, RAMJI M, SAI B V H., A new process for design and manufacture of tailor-made functionally graded composites through friction stir additive manufacturing, Journal of Manufacturing Processes, 26, pp. 122-130, (2017)
  • [8] PALANIVEL S, SIDHAR H, MISHRA R S., Friction stir additive manufacturing: Route to high structural performance, JOM, 67, 3, pp. 616-621, (2015)
  • [9] WANG Xin-kai, Process study on aluminum alloy by friction stir additive manufacturing, pp. 1-72, (2015)
  • [10] SRIVASTAVA M, RATHEE S, MAHESHWARI S, SIDDIQUEE A N, KUNDRA T K., A review on recent progress in solid state friction based metal additive manufacturing: friction stir additive techniques, Critical Reviews in Solid State and Material Sciences, 44, 5, pp. 345-377, (2019)
1234