Latent Heat of TB18 Titanium Alloy during &beta; to a Phase Transition by DSC and First-Principles Methods

doi:10.1007/s40195-023-01589-6

IMR OpenIR

	Latent Heat of TB18 Titanium Alloy during β to a Phase Transition by DSC and First-Principles Methods
	Jia, Yan-Di 1,2; Cao, Shuo 1,2; Ma, Ying-Jie 1,2; Huang, Sen-Sen 2; Qin, Feng-Ying 3; Li, Shao-Qiang 4; Xiang, Wei 5; Wang, Qian 2; Hu, Qing-Miao 2; Li, Bo 3; Lei, Jia-Feng 1,2; Xie, Jing 5; Liu, Xiang-Hong 4; Yang, Rui 1,2
通讯作者	Ma, Ying-Jie(yjma@imr.ac.cn)
	2023-09-15
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	13
摘要	The phase transition of titanium alloys is sensitive to the heat-treatment procedure, accompanied with the latent heat induced by phase transition. However, the latent heat during phase transition of titanium alloy has not been systematically studied, which may result in the gap between designed and actual temperature of the sample and affect the final mechanical properties. In this work, DSC (differential scanning calorimetry) and first-principles simulate methods were used to study the beta -> alpha phase transition process of TB18 (Ti-Al-Mo-V-Cr-Nb-Fe system) metastable beta titanium alloy, especially to reveal the influence of the heating rate on latent heat. The ratio of latent heat to endothermic heat of the sample during temperature rising was introduced to interpret the effect of latent heat to actual temperature. The ratio of latent heat to endothermic heat at 1 celcius/min is about 15 to 20 times higher than that at 10 celcius/min. The higher ratio indicates that the latent heat of phase transition has a more significant effect on the temperature, which is related to the temperature range of phase transition and the alpha volume fraction. Compared with the heating rate of 1 celcius/min, the beta -> alpha phase transition takes place at higher temperature and the volume fraction of alpha is smaller at 10 celcius/min. Meanwhile, there is a precipitation free zone between grain boundary alpha and intragranular alpha and the distribution of alpha lamellae is heterogeneous when the heating rate is 10 celcius/min. Both of the experimental and theoretical results suggest that the latent heat of phase transition is the main cause of the temperature fluctuation during heat-treatment process. This work has guiding significance for microstructure optimization affected by temperature, to achieve the desired mechanical properties.
关键词	High-strength titanium alloys Latent heat Phase transition Differential scanning calorimetry (DSC) First-principles calculation
资助者	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; CAS Project for Young Scientists in Basic Research ; Natural Science Foundation of China ; Youth Innovation Promotion Association CAS and Liaoning Revitalization Talents Program
DOI	10.1007/s40195-023-01589-6
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[YSBR-025] ; National Key Research and Development Program of China[51871225] ; CAS Project for Young Scientists in Basic Research[XLYC1907005] ; Natural Science Foundation of China ; Youth Innovation Promotion Association CAS and Liaoning Revitalization Talents Program ; [XDA22010101]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001066006700001
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：2[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/321006/179323
专题	中国科学院金属研究所
通讯作者	Ma, Ying-Jie
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.First Aircraft Inst, AVIC, Xian 710089, Peoples R China 4.Western Superconducting Technol Co Ltd, Xian 710018, Peoples R China 5.China Natl Erzhong Grp Wanhang Die Forging Co Ltd, Deyang 618000, Peoples R China
推荐引用方式 GB/T 7714	Jia, Yan-Di,Cao, Shuo,Ma, Ying-Jie,et al. Latent Heat of TB18 Titanium Alloy during β to a Phase Transition by DSC and First-Principles Methods[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2023:13.
APA	Jia, Yan-Di.,Cao, Shuo.,Ma, Ying-Jie.,Huang, Sen-Sen.,Qin, Feng-Ying.,...&Yang, Rui.(2023).Latent Heat of TB18 Titanium Alloy during β to a Phase Transition by DSC and First-Principles Methods.ACTA METALLURGICA SINICA-ENGLISH LETTERS,13.
MLA	Jia, Yan-Di,et al."Latent Heat of TB18 Titanium Alloy during β to a Phase Transition by DSC and First-Principles Methods".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2023):13.