Optimization of hot deformation parameters for multi-directional forging of Ti65 alloy based on the integration of processing maps and finite element method

doi:10.1016/j.jmrt.2024.02.214

IMR OpenIR

	Optimization of hot deformation parameters for multi-directional forging of Ti65 alloy based on the integration of processing maps and finite element method
	Zhu, Peng 1; Yang, Shu 1; Gao, Zhijie 1; Liu, Jianrong 2; Zhou, Li 1
通讯作者	Liu, Jianrong(jrliu@imr.ac.cn) ; Zhou, Li(lizhou@ytu.edu.cn)
	2024-03-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	29 页码:5271-5281
摘要	In this paper, the hot deformation behavior of Ti65 alloy was investigated over the temperature range of 930-1110 degrees C with the strain rate of 0.001-1 s- 1. According to the stress-strain curves, the constitutive equation was developed to describe the flow behavior of Ti65 alloy. The processing maps were constructed based on the dynastic materials model (DMM) and the perfect formability zone of Ti65 alloy is found under the temperature of 970-1020 degrees C and the strain rate of 0.001-0.1 s-1. In addition, a three-dimensional nonlinear transient thermomechanically coupled finite element model of the multi-dimensional forging (MDF) process of Ti65 alloy was developed. The effects of the forging temperature and forging speed, on the temperature rise, residual stress, and grain refinement were predicted. By analyzing the temperature and stress distribution, the optimum forging temperature and speed for Ti65 alloys were determined to be 1000 degrees C and 10 mm/s, respectively. Increasing the forging temperature or reducing the forging speed reduces the temperature rise and the maximum tensile stress, thus reducing the risk of cracking. Additionally, the equivalent strain increases as forging speed decreases. Simultaneously, the accumulated strain is more significant for the inside of the forgings. The results of this research are instructive for the optimization of the MDF process.
关键词	Ti65 alloy Constitutive equation Processing maps Finite element method Multi -directional forging
资助者	National Science and Technology Major Project
DOI	10.1016/j.jmrt.2024.02.214
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project[J2019 -VI -0012-0126]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001202662400001
出版者	ELSEVIER
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/185543
专题	中国科学院金属研究所
通讯作者	Liu, Jianrong; Zhou, Li
作者单位	1.Yantai Univ, Sch Electromech & Automot Engn, Yantai 264005, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Div Light weight High Strength Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Peng,Yang, Shu,Gao, Zhijie,et al. Optimization of hot deformation parameters for multi-directional forging of Ti65 alloy based on the integration of processing maps and finite element method[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2024,29:5271-5281.
APA	Zhu, Peng,Yang, Shu,Gao, Zhijie,Liu, Jianrong,&Zhou, Li.(2024).Optimization of hot deformation parameters for multi-directional forging of Ti65 alloy based on the integration of processing maps and finite element method.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,29,5271-5281.
MLA	Zhu, Peng,et al."Optimization of hot deformation parameters for multi-directional forging of Ti65 alloy based on the integration of processing maps and finite element method".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 29(2024):5271-5281.