Nonnegligible Temperature Drop Induced by Thermocouple on Samples in Gleeble Tests

doi:10.3390/met13091573

IMR OpenIR

	Nonnegligible Temperature Drop Induced by Thermocouple on Samples in Gleeble Tests
	Zhao, Xiuhong 1; Ma, Yuting 2; Gao, Shuailong 2; Li, Xuexiong 3; Yu, Dejun 1; Wang, Hao 2
通讯作者	Wang, Hao(haowang7@usst.edu.cn)
	2023-09-01
发表期刊	METALS
卷号	13 期号:9 页码:12
摘要	High-temperature plastic deformation is one of the main methods for the fabrication of titanium-based alloys. Accurate determination of the mechanical constitutive relation is pivotal for the design, optimization, as well as the prediction of the mechanical behavior of materials. In this study, finite element simulations were carried out to simulate the Gleeble thermal compression experiment of titanium alloy samples, focusing on different thermocouple design parameters, including thermocouple material and wire diameter, etc. The results show that the heat dissipation of the thermocouple distorted the local temperature field of the contact point between the sample and the thermocouple, resulting in a deviation of the measured temperature. Through finite element method (FEM) simulation and analysis of the changes caused by various factors and comparison with the metallographic morphology of titanium alloy samples from relevant heat treatment experiments, it was shown that the material and wire diameter of the thermocouple, the thermal conductivity coefficient of sample, and the testing temperature of the sample all affected the measurement results. The thermal conductivity of sample had the largest influence on the measurement accuracy. Based on the finite element simulation and experimental comparison, the corresponding correction method and correction formula are proposed.
关键词	thermal compression Gleeble FEM temperature measurement error correction
资助者	National Natural Science Foundation of China ; Guiding Plan of Natural Science Foundation of Liaoning Province ; Shanghai Engineering Research Center of High-Performance Medical Device Materials
DOI	10.3390/met13091573
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[U2241245] ; National Natural Science Foundation of China[91960202] ; Guiding Plan of Natural Science Foundation of Liaoning Province[2019-zd-0357] ; Shanghai Engineering Research Center of High-Performance Medical Device Materials[20DZ2255500]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001079124700001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/179416
专题	中国科学院金属研究所
通讯作者	Wang, Hao
作者单位	1.Anshan Normal Univ, Sch Phys Sci & Technol, Anshan 114005, Peoples R China 2.Univ Shanghai Sci & Technol, Interdisciplinary Ctr Addit Mfg ICAM, Sch Mat & Chem, Shanghai 200093, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Xiuhong,Ma, Yuting,Gao, Shuailong,et al. Nonnegligible Temperature Drop Induced by Thermocouple on Samples in Gleeble Tests[J]. METALS,2023,13(9):12.
APA	Zhao, Xiuhong,Ma, Yuting,Gao, Shuailong,Li, Xuexiong,Yu, Dejun,&Wang, Hao.(2023).Nonnegligible Temperature Drop Induced by Thermocouple on Samples in Gleeble Tests.METALS,13(9),12.
MLA	Zhao, Xiuhong,et al."Nonnegligible Temperature Drop Induced by Thermocouple on Samples in Gleeble Tests".METALS 13.9(2023):12.