Internal defects control mechanism and process optimization of TC11 titanium alloy by cross wedge rolling

doi:10.1016/j.jmatprotec.2023.118106

IMR OpenIR

	Internal defects control mechanism and process optimization of TC11 titanium alloy by cross wedge rolling
	Shi, Mingjie 1,2; Cheng, Ming 1; Liu, Jiaxu 1,2; Chen, Shuaifeng 1; Zhang, Shihong 1; Deng, Quanshui 1; Vladimir, Petrenko 3
通讯作者	Cheng, Ming(mcheng@imr.ac.cn)
	2023-11-01
发表期刊	JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
ISSN	0924-0136
卷号	320 页码:12
摘要	In this paper, internal defects control mechanism and process optimization of TC11(Ti-6.5Al-3.5Mo-1.5Zr-0.3Si) alloy during cross wedge rolling (CWR) were investigated to promote the application of CWR in aviation. The effect of process parameters on the necking defect was studied by experiments and simulations with defining a dimensionless parameter delta. Meanwhile, microscopic observation and microcrack density statistics were performed on the center of the rolled workpiece to investigate the effect of process parameters on the evolution of internal defects. Microstructure analysis revealed that the center zone of the rolled titanium alloy workpiece was prone to crack along the interface between alpha-phase and beta-phase, due to the difference in deformation and recrystallization behaviors. In addition, as alpha(p)-phase was coarser than alpha(s)-phase and elongated along the axial direction, microcracks were more susceptible to initiation and propagation at the interface between alpha(p)-phase and beta-phase under combined shear and tensile stresses. Moreover, the evolution mechanisms of microstructure and central microcracks with temperature were proposed based on simulations and experiments. As the preheating temperature increasing, alpha(s)-phase and alpha(p)-phase gradually transformed to beta-phase, and the material deformation ability is improved and the amount of phase interfaces is decreased. Therefore, the microstructure and internal defects of rolled workpieces can be regulated by adjusting the preheating temperature. Finally, the process optimization diagram was established to provide guidance for the forming of TC11 alloy rolled workpieces.
关键词	Cross wedge rolling Titanium alloy Necking Internal defects Phase interface
资助者	International Science and Technology Cooperation Project in Liaoning Province of China ; National Key R & D Plan of China ; Sino-Belarus Inter-Governmental S & T Cooperation project
DOI	10.1016/j.jmatprotec.2023.118106
收录类别	SCI
语种	英语
资助项目	International Science and Technology Cooperation Project in Liaoning Province of China[2022JH2/10700006] ; National Key R & D Plan of China[SQ2018YFE0119600] ; Sino-Belarus Inter-Governmental S & T Cooperation project[CB02-09]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary
WOS记录号	WOS:001165124100001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：7[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/321006/184321
专题	中国科学院金属研究所
通讯作者	Cheng, Ming
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Natl Acad Sci Belarus, Phys Tech Inst, Minsk 220141, BELARUS
推荐引用方式 GB/T 7714	Shi, Mingjie,Cheng, Ming,Liu, Jiaxu,et al. Internal defects control mechanism and process optimization of TC11 titanium alloy by cross wedge rolling[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2023,320:12.
APA	Shi, Mingjie.,Cheng, Ming.,Liu, Jiaxu.,Chen, Shuaifeng.,Zhang, Shihong.,...&Vladimir, Petrenko.(2023).Internal defects control mechanism and process optimization of TC11 titanium alloy by cross wedge rolling.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,320,12.
MLA	Shi, Mingjie,et al."Internal defects control mechanism and process optimization of TC11 titanium alloy by cross wedge rolling".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 320(2023):12.