锻压技术

TC21钛合金热压缩本构方程及热加工图

英文标题：Constitutive equation and thermal processing map of thermal compression for TC21 titanium alloy

作者：孙越孙勇杨勇凌云汉袁超黄达力

分类号：TG146.2

出版年,卷(期):页码：2023,48(4):242-248

摘要：

为准确获得TC21钛合金塑性加工的变形特征和热加工条件，合理设计锻造工艺参数，利用Gleeble-3500热模拟机进行等温恒应变速率热压缩试验，研究了TC21钛合金在变形温度为830~1010 ℃、应变速率为0.01~10 s-1条件下的热变形行为，采用Arrhenius双曲线正弦函数推导出TC21钛合金本构方程。并基于动态材料模型（Dynamic Materials Model, DMM）建立了TC21钛合金的热加工图。结果表明，在本试验的变形条件下，该合金的流变应力随着变形温度的降低和应变速率的升高而增大。根据热加工图确定了合金的热加工安全区域为：变形温度为900~940 ℃、应变速率为0.01~0.05 s-1和变形温度为970~1010 ℃、应变速率为0.01~0.08 s-1。

In order to accurately obtain the plastic processing deformation characteristics and thermal processing conditions of TC21 titanium alloy, and reasonably design the forging process parameters, the Gleeble-3500 thermal simulator was used to conduct isothermal thermal compression tests with constant strain rate, and the deformation temperatures of TC21 titanium alloy was 830-1010 ℃, the thermal deformation behavior under the condition of strain rates of 0.01-10 s-1 was studied, the constitutive equation of TC21 titanium alloy was derived by using the Arrhenius hyperbolic sine function. Based on the dynamic materials model(DMM), the thermal processing map of TC21 titanium alloy was established. The results show that under the deformation conditions of this test, the flow stress of alloy increases with the decreasing of deformation temperature and the increasing of strain rate. According to the thermal processing map, the thermal processing safety zone of alloy is determined as: the deformation temperature of 900-940 ℃, the strain rate of 0.01-0.05 s-1 and the deformation temperature of 970-1010 ℃, the strain rate of 0.01-0.08 s-1.

基金项目：

国家重点研发计划资助项目（2022YFB3706904）

作者简介：孙越（1997-），男，硕士研究生 E-mail：578347945@qq.com 通信作者：孙勇（1971-），男，博士，研究员 E-mail：sun_yong_89@163. com

参考文献：

［1］付艳艳,宋月清,惠松骁,等. 航空用钛合金的研究与应用进展
［J］. 稀有金属,2006,30(6):850-856.

Fu Y Y, Song Y Q, Hui S X, et al. Research and application of typical aerospace titanium alloys
［J］. Chinese Journal of Rare Metals, 2006, 30(6):850-856.

［2］金和喜,魏克湘,李建明,等. 航空用钛合金研究进展
［J］. 中国有色金属学报,2015,25(2):280-292.

Jin H X, Wei K X, Li J M, et al. Research development of titanium alloy in aerospace industry
［J］. The Chinese Journal of Nonferrous Metals, 2015, 25(2):280-292.

［3］朱知寿. 我国航空用钛合金技术研究现状及发展
［J］. 航空材料学报,2014,34(4):44-50.

Zhu Z S. Recent research and development of titanium alloys for aviation application in China
［J］. Journal of Aeronautical Materials, 2014, 34(4):44-50.

［4］赵永庆,葛鹏.我国自主研发钛合金现状与进展
［J］.航空材料学报,2014,34(4):51-61.

Zhao Y Q, Ge P. Current situation and development of new titanium alloys invented in China
［J］. Journal of Aeronautical Materials, 2014, 34(4):51-61.

［5］宗影影,王琪伟,袁林,等. 航空航天复杂构件的精密塑性体积成形技术
［J］. 锻压技术,2021,46(9):1-15.

Zong Y Y, Wang Q W, Yuan L, et al. Precision plastic volume forming technology for aerospace complex components
［J］. Forging & Stamping Technology, 2021, 46(9):1-15.

［6］王新南,朱知寿,童路,等. 锻造工艺对TC4-DT和TC21损伤容限型钛合金疲劳裂纹扩展速率的影响
［J］. 稀有金属快报,2008,319(7):12-16.

Wang X N, Zhu Z S, Tong L, et al. The influence of forging processing on fatigue crack propagation rate of damage-tolerant titanium alloy
［J］. Materials China, 2008, 319(7):12-16.

［7］张利军,常辉,薛祥义. 等温锻造技术及其在航空工业中的应用
［J］. 热加工工艺,2010,39(21):21-24.

Zhang L J, Chang H, Xue X Y. Isothermal forging technology and its application in aviation industry
［J］. Hot Working Technology, 2010, 39(21):21-24.

［8］张智,巨建辉,戚运莲,等. 钛合金锻造工艺及其锻件的应用
［J］. 热加工工艺,2010,39(23):34-37.

Zhang Z, Ju J H, Qi Y L, et al. Forging technology of titanium alloy and application of forgings
［J］. Hot Working Technology, 2010, 39(23):34-37.

［9］Han Y, Liu G W, Zou D N, et al. Deformation behavior and microstructural evolution of as-cast 904L austenitic stainless steel during hot compression
［J］. Materials Science and Engineering: A, 2013, 565: 342-350.

［10］Xia L L, Xu Y, El-Aty A A, et al. Deformation characteristics in hydro-mechanical forming process of thin-walled hollow component with large deformation: Experimentation and finite element modeling
［J］. The International Journal of Advanced Manufacturing Technology, 2019, 104: 4705-4714.

［11］王忠堂,张士宏,齐广霞,等. AZ31镁合金热变形本构方程
［J］. 中国有色金属学报,2008,18(11):1977-1982.

Wang Z T, Zhang S H, Qi G X, et al. Constitutive equation of thermal deformation for AZ31 magnesium alloy
［J］. The Chinese Journal of Nonferrous Metals, 2008, 18(11):1977-1982.

［12］于以标,陈乐平,徐勇,等.2060-T8E30铝锂合金的热变形行为及本构模型
［J］.稀有金属材料与工程,2021,50(12):4388-4394.

Yu Y B, Chen L P, Xu Y, et al. Hot deformation behavior and constitutive model of 2060-T8E30 Al-Li alloy
［J］. Rare Metal Materials and Engineering, 2021, 50(12):4388-4394.

［13］鲁世强,李鑫,王克鲁,等.基于动态材料模型的材料热加工工艺优化方法
［J］. 中国有色金属学报,2007,99(6):890-896.

Lu S Q, Li X, Wang K L, et al. Optimizing approach of materials hot working processes based on dynamic material model
［J］. The Chinese Journal of Nonferrous Metals, 2007, 99(6):890-896.

［14］Prasad Y V R K, Gegel H L, Doraivelu S M, et al. Modeling of dynamic material behavior in hot deformation: Forging of Ti-6242
［J］. Metall. Mater. Trans. A, 1984, 15:1883-1892.

［15］曲凤盛,周杰,刘旭光,等. TC18钛合金热压缩本构方程及热加工图
［J］. 稀有金属材料与工程,2014,43(1):120-124.

Qu F S, Zhou J, Liu X G, et al. Constitutive equation and processing map of thermal deformation for TC18 titanium alloy
［J］. Rare Metal Materials and Engineering, 2014, 43(1):120-124.

［16］Prasad Y V R K. Recent advances in the science of mechanical processing
［J］. Indian J. Technol. , 1990, 28: 435-451.

［17］Robi P S, Dixit U S. Application of neural networks in generating processing map for hot working
［J］. Journal of Materials Processing Technology, 2003, 142: 289-294.

［18］谭志龙,尹畅畅,闻明,等. NiPt15合金热变形行为及热加工图研究
［J］. 稀有金属材料与工程,2021,50(11):4149-4156.

Tan Z L, Yin C C, Wen M, et al. Hot deformation behavior and hot processing maps of NiPt15 alloys
［J］. Rare Metal Materials and Engineering, 2021, 50(11): 4149-4156.

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