Hot compression behavior and dynamic recrystallization mechanisms of Ti-5Mo-5V-8Cr-3Al alloy

doi:10.1016/j.jallcom.2025.178727

IMECH-IR > 微重力重点实验室

	Hot compression behavior and dynamic recrystallization mechanisms of Ti-5Mo-5V-8Cr-3Al alloy
	Zhang, Hongbin 1; Peng, Haiao 1; Zhou, Haiping 1; Zhang K(张坤)2,3 ; Liu, Chaohong 4; Qin, Shengxue 1; Liu, Jie1 ; Wang, Jiyuan 1
通讯作者	Zhou, Haiping([email protected]) ; Zhang, Kun([email protected])
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
	2025-02-05
卷号	1014 页码:14
ISSN	0925-8388
摘要	This study systematically investigated the hot compression behavior of Ti-5Mo-5V-8Cr-3Al alloy, commonly referred to as TB2 alloy, within the temperature range of 800-950 degrees C and strain rates of 0.001-1 s-1. Using transmission electron microscopy (TEM) and electron backscatter diffraction (EBSD) techniques, the microstructural evolution and dynamic recrystallization (DRX) mechanisms were thoroughly analyzed. Based on the relationship between flow stress and deformation conditions, the apparent activation energy of TB2 alloy was calculated to be 497.6 kJ/mol using the Arrhenius equation. The high-precision constitutive model was then developed to describe the complex interactions between stress, strain rate, and temperature. The hot processing map was constructed using the dynamic materials model (DMM), identifying optimal processing parameters of 900 degrees C and 0.001 s-1 . Under these optimized conditions, the alloy achieved complete DRX, forming a fine and uniformly distributed equiaxed grain structure, significantly enhancing its mechanical properties. Additionally, the study identified two primary DRX mechanisms in TB2 alloy: continuous dynamic recrystallization (CDRX) and discontinuous dynamic recrystallization (DDRX). The synergistic effect of these two mechanisms promotes dislocation rearrangement and grain refinement during dynamic deformation. These findings provide critical theoretical and practical guidance for the optimization of the hot working process of TB2 alloy.
关键词	Ti-5Mo-5V-8Cr-3Al alloy Processing map Hot deformation behavior Constitutive model Dynamic recrystallization behavior
DOI	10.1016/j.jallcom.2025.178727
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001410003500001
关键词[WOS]	CONSTITUTIVE MODEL ; PROCESSING MAP ; STRAIN-RATE ; DEFORMATION ; TEMPERATURE ; EVOLUTION
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助项目	Shandong Province Natural Science Foundation[ZR2023ME227] ; National Natural Science Foundation of China[12272392] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB0620301]
项目资助者	Shandong Province Natural Science Foundation ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences
论文分区	一类
力学所作者排名	1
RpAuthor	Zhou, Haiping ; Zhang, Kun
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/98265
专题	微重力重点实验室
作者单位	1.Shandong Univ Sci & Technol, Coll Mech & Elect Engn, Qingdao 266590, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 4.Goertek Inc, 500 Songling Rd, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hongbin,Peng, Haiao,Zhou, Haiping,et al. Hot compression behavior and dynamic recrystallization mechanisms of Ti-5Mo-5V-8Cr-3Al alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2025,1014:14.Rp_Au:Zhou, Haiping, Zhang, Kun
APA	Zhang, Hongbin.,Peng, Haiao.,Zhou, Haiping.,张坤.,Liu, Chaohong.,...&Wang, Jiyuan.(2025).Hot compression behavior and dynamic recrystallization mechanisms of Ti-5Mo-5V-8Cr-3Al alloy.JOURNAL OF ALLOYS AND COMPOUNDS,1014,14.
MLA	Zhang, Hongbin,et al."Hot compression behavior and dynamic recrystallization mechanisms of Ti-5Mo-5V-8Cr-3Al alloy".JOURNAL OF ALLOYS AND COMPOUNDS 1014(2025):14.