A Visualized Microstructure Evolution Model Integrating an Analytical Cutting Model with a Cellular Automaton Method during NiTi Smart Alloy Machining

被引:0
|
作者
Wang, Jiaqi [1 ,2 ]
Li, Ming [1 ,2 ,3 ]
Li, Qingguang [1 ,2 ]
Pan, Xianchao [1 ,2 ]
Wang, Zixuan [1 ,3 ]
Jia, Jing [1 ,2 ]
Liu, Renti [4 ]
Zhou, Yunguang [1 ,2 ]
Ma, Lianjie [1 ,2 ]
Yu, Tianbiao [1 ,3 ]
机构
[1] Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110819, Peoples R China
[2] Northeastern Univ Qinhuangdao, Sch Control Engn, Qinhuangdao 066004, Peoples R China
[3] Northeastern Univ, Liaoning Prov Key Lab Intelligent Design & Mfg Tec, Shenyang 110819, Peoples R China
[4] Shanghai Electromech Engn Inst, Shanghai 201109, Peoples R China
基金
中国国家自然科学基金;
关键词
NiTi smart alloy; cutting process; microstructure evolution; primary shear zone; cellular automaton; SHAPE-MEMORY ALLOY; SURFACE INTEGRITY CHARACTERISTICS; DYNAMIC RECRYSTALLIZATION; BASIC MECHANICS; CHIP FORMATION; SIMULATION; DEFORMATION; TRANSFORMATION; BEHAVIOR; DRY;
D O I
10.3390/cryst14080672
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
In this study, a visualized microstructure evolution model for the primary shear zone during NiTi smart alloy machining was established by integrating an analytical cutting model with a cellular automaton method. Experimental verification was conducted using an invented electromagnet rotation-type quick-stop device. The flow stress curve during the dynamic recrystallization of the NiTi smart alloy, the influence of relevant parameters on the dynamic recrystallization process, and the distribution of dynamic recrystallization in the primary shear zone were studied via the model. The simulation results showed that strain rate and deformation temperature significantly affect the relevant parameters during the dynamic recrystallization process. Three typical shear planes were selected for a comparison between simulation results and experimental results, with a minimum error of 3.76% and a maximum error of 11.26%, demonstrating that the model accurately simulates the microstructure evolution of the NiTi smart alloy during the cutting process. These results contribute theoretical and experimental insights into understanding the cutting mechanism of the NiTi smart alloy.
引用
收藏
页数:23
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