METALS AND METAL MATRIX COMPOSITES |
|
|
|
|
|
Game Relation Between Grain Refinement and Grain Coarsening in Thermoplastic Deformation of Nickel-based Superalloy and Its Evolution |
QUAN Guozheng, WEN Zhihang, SHEN Li, MA Yaoyao, ZHANG Pu, ZHANG Yuqing, ZHAN Zongyang
|
School of Material Science and Engineering, Chongqing University, Chongqing 400044, China |
|
|
Abstract In order to reveal the game relation and evolution between grain refinement and grain coarsening in the process of Ni80A thermoplastic deformation, dynamic recrystallization and grain growth models were established based on grain refinement isothermal deformation experiment and grain growth coarsening experiment, respectively. Based on the mathematical model and finite element analysis, it was found that the game relation of dynamic recrystallization grain refinement and grain growth coarsening in the process of Ni80A thermoplastic deformation jointly determine the nonlinear evolution of grain size, and the game relation diagram of the two mechanisms of grain size evolution was drawn to analyze their independent and coupling effects on grain size. The results show that the grain growth coarsening is dominant in the early stage of deformation, the dynamic recrystallization grain refinement is dominant in the middle and late stage of deformation, and the grain size is affected by the game of them in the whole thermoplastic deformation process.
|
Published: 30 September 2021
|
|
Fund:This work was supported by Fundamental Research Funds for the Central Universitie (2021CDJKYJH001) and Chongqing Basic Research and Frontier Exploration Program (cstc2018jcyjAX0459). |
About author:: Guozheng Quan received Ph.D. degree in material science and engineering from the Chongqing University (CQU), Chongqing, China, in 2007. He is currently a professor at Chongqing University. His research interests include microstructural evolution in plastic forming process, multi-field and multi-scale simulation-based design optimization. |
|
|
1 Alniak M O, Bedir F. Materials & Design, 2010, 31(3), 1588. 2 Fang J X. Heat Treatment, 2009, 24(3), 58 (in Chinese). 方静贤. 热处理, 2009, 24(3), 58. 3 Wu K, Liu G Q, Hu B F, et al. Rare Metal Materials and Engineering, 2011, 40(4), 645 (in Chinese). 吴凯, 刘国权, 胡本芙, 等. 稀有金属材料与工程, 2011, 40(4), 645. 4 Luo G. Study on dynamic recrystallization behavior and thermoplastic flow stress of 42CrMo steel. Master's Thesis, Chongqing University, China, 2010 (in Chinese). 骆刚. 42CrMo热塑性流变及动态再结晶行为研究. 硕士学位论文, 重庆大学, 2010. 5 Cui Z Q. Metallogy and heat treatment, China Machine Press, China, 2000 (in Chinese). 崔忠圻. 金属学与热处理, 机械工业出版社, 2000. 6 Mao W M, Zhao X B. Recrystallization and grain growth of metals, Metallurgical Industry Press, China, 1994 (in Chinese). 毛卫民,赵新兵. 金属的再结晶与晶粒长大,冶金工业出版社,1994. 7 Zhan Z Y. Construction of dynamic recrystallization and grain growth mo-dels for Ni-based superalloy as well as its application. Master's Thesis, Chongqing University, China, 2017 (in Chinese). 詹宗杨. 镍基超合金动态再结晶与晶粒生长模型构建及其应用. 硕士学位论文, 重庆大学, 2017. 8 Rehrl C, Kleber S, Renk O, et al. Materials Science & Engineering A, 2011, 528(19), 6163. 9 Zhang Y W. The bebavior characerization and optimal identification in parameter of Ti-6Al-2Zr-1Mo-1V alloy in thermoplastic deformation. Master's Thesis, Chongqing University, China, 2012 (in Chinese). 张艳伟. Ti-6Al-2Zr-1Mo-1V 合金热塑性流变行为表征及参数优化识别. 硕士学位论文, 重庆大学, 2012. 10 Poliak E I, Jonas J J. Acta Materialia, 1996, 44(1), 127. 11 Medina S F, Hernandez C A. Acta Materialia, 1996, 44(1), 165. 12 Ji G L, Li F G, Li Q H, et al. Materials Science & Engineering A, 2010, 527(9), 2350. 13 Quan G Z, Li Y L, Zhang L, et al. Vacuum, 2017, 139, 51. 14 Lin Y C, Chen M S, Zhong J. Materials & Design, 2009, 30(3), 908. 15 Sellars C M, Whiteman J A. Metal Science, 1979, 13(3), 187. 16 Chen L Q, Sui F L, Liu X H. Acta Metallurgica Sinca, 2009, 45(10), 1242. 陈礼清,隋凤利,刘相华. 金属学报, 2009, 45(10), 1242. 17 Quan G Z, Zhan Z Y, Wang T, et al. High Temperature Materials & Processes, 2016, 36(1), 29.
|
|
|
|