Prediction of microstructure evolution of ZK61 alloy during hot spinning by internal state variable model

作     者：Jin-qi PAN Wen-cong ZHANG Jian-lei YANG Song-hui WANG Yong WU Huan LI 潘金启;张文丛;杨建雷;王松辉;武永;李焕

作者机构：School of Materials Science and EngineeringHarbin Institute of Technology WeihaiWeihai 264209China College of Mechanical and Electrical EngineeringNanjing University of Aeronautics and AstronauticsNanjing 210016China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报(英文版))

年 卷 期：2025年第35卷第1期

页      面：126-142页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(No.51905123) Major Scientific and Technological Innovation Program of Shandong Province,China(Nos.2020CXGC010303,2022ZLGX04) Key R&D Programme of Shandong Province,China(No.2022JMRH0308) 

主　　题：internal state variable model hot spinning ZK61 alloy finite element simulation texture evolution 

摘      要：An internal state variable(ISV)model was established according to the experimental results of hot plane strain compression(PSC)to predict the microstructure evolution during hot spinning of ZK61 *** effects of the internal variables were considered in this ISV model,and the parameters were optimized by genetic *** validation,the ISV model was used to simulate the evolution of grain size(GS)and dynamic recrystallization(DRX)fraction during hot spinning via Abaqus and its subroutine *** comparing the simulated results with the experimental results,the application of the ISV model was proven to be ***,the strength of the thin-walled spun ZK61 tube increased from 303 to 334 MPa due to grain refinement by DRX and texture ***,some ultrafine grains(0.5μm)that played an important role in mechanical properties were formed due to the proliferation,movement,and entanglement of dislocations during the spinning process.