3D Phase Field Simulation of Factors Influencing the Microstructure Morphology of Lamellar Ti-6Al-4V Alloy

doi:10.11900/0412.1961.2023.00392

IMR OpenIR

	3D Phase Field Simulation of Factors Influencing the Microstructure Morphology of Lamellar Ti-6Al-4V Alloy
	Zhang, Yao 1; Qi, Min 2; Sun, Jia 3; Wu, Ting 1; Ma, Yingjie 2; Wang, Hao 1; Yang, Rui 2
通讯作者	Wang, Hao(haowang7@usst.edu.cn)
	2024-09-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	60 期号:9 页码:1265-1278
摘要	Ti-6Al-4V, a typical dual-phase titanium alloy, has mechanical properties largely determined by its microstructures. However, the absence of three-dimensional (3D) information regarding the relative orientation relationships of grain boundary alpha, alpha lamellae, and alpha side branches, hinders precise mi-crostructure control. In this study, using thermodynamic data from Pandat and Thermo-Calc, along with ki-netic data from DICTRA, the 3D morphology of alpha lamellae in Ti-6Al-4V alloy was simulated via the phase field method. This study simulated the influence of interfacial energy anisotropy on the growth of alpha lamellae at a heat treatment temperature of 820 degrees C and analyzed the corresponding solute field. The findings reveal that interface energy anisotropy considerably affects the morphology of alpha lamellae. When the anisotropy of the interface energy increased from 0.4:0.1:1.0 to 0.8:0.1:1.0, the alpha lamellae transformed from a thick rod shape to a slender needle shape. Higher anisotropy levels lead to accelerated growth rates of alpha lamellae. Variation in interface anisotropy, primarily affect the density and growth rate of alpha lamellae, while their growth direction remains consistent. Additionally, the width of individual lamellae progressively widens under different inter-face anisotropies. The phase-field simulation results align closely with experimental findings. Notably, the 3D simulation results of alpha lamellae organization offer more detailed insights into the side branches of alpha lamel-lae than two-dimensional (2D) SEM images. In 3D simulation, it can be observed the growth morphology of side branches at different positions of grains. The results indicate that the angle between the main lamellae and the side branches includes experimental observations of 30 degrees and random angles.
关键词	Ti-6Al-4V phase-field alpha lamellae interfacial energy solute field
DOI	10.11900/0412.1961.2023.00392
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001320333900010
出版者	SCIENCE PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/191532
专题	中国科学院金属研究所
通讯作者	Wang, Hao
作者单位	1.Univ Shanghai Sci & Technol, Interdisciplinary Ctr Addit Mfg, Sch Mat & Chem, Shanghai 200093, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Yunnan Tin New Mat Co Ltd, Kunming 650217, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yao,Qi, Min,Sun, Jia,et al. 3D Phase Field Simulation of Factors Influencing the Microstructure Morphology of Lamellar Ti-6Al-4V Alloy[J]. ACTA METALLURGICA SINICA,2024,60(9):1265-1278.
APA	Zhang, Yao.,Qi, Min.,Sun, Jia.,Wu, Ting.,Ma, Yingjie.,...&Yang, Rui.(2024).3D Phase Field Simulation of Factors Influencing the Microstructure Morphology of Lamellar Ti-6Al-4V Alloy.ACTA METALLURGICA SINICA,60(9),1265-1278.
MLA	Zhang, Yao,et al."3D Phase Field Simulation of Factors Influencing the Microstructure Morphology of Lamellar Ti-6Al-4V Alloy".ACTA METALLURGICA SINICA 60.9(2024):1265-1278.