3D morphology characterization of graphite and its effect on the thermal conductivity of vermicular graphite iron

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	3D morphology characterization of graphite and its effect on the thermal conductivity of vermicular graphite iron
	Ma, Zhijun; Yang, Zhong; Guo, Yongchun; Tao, Dong; Li, Jianping; Wang, Shaogang
	2019-07-01
Source Publication	INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
ISSN	1862-5282
Volume	110 Issue:7 Pages:591-599
Abstract	It is important to establish the quantitative effect of graphite's 3D morphology on the thermal conductivity of vermicular graphite iron. In the present study, X-ray tomography is utilized to investigate the 3D morphology of graphite in vermicular graphite iron with different vermicularity. A 3D finite element model was built on the basis of graphite's 3D morphology and the equivalent thermal conductivity of vermicular graphite iron can be calculated. The results show that the volume of graphite clusters in vermicular graphite iron is distributed according to y = a (1 - e(-bx))(c) exponential function. The higher the vermicularity, the more obvious the polarization of graphite volume. Compared with vermicularity, 3D connectivity of graphite is a more appropriate characteristic parameter to investigate the thermal conductivity of vermicular graphite iron from the 3D morphology point of view.
Keyword	Vermicular graphite iron Thermal conductivity 3D connectivity X-ray tomography
Indexed By	SCI
Language	英语
WOS ID	WOS:000475500300001
Publisher	CARL HANSER VERLAG
Citation statistics
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/80938
Collection	中国科学院金属研究所
Recommended Citation GB/T 7714	Ma, Zhijun,Yang, Zhong,Guo, Yongchun,et al. 3D morphology characterization of graphite and its effect on the thermal conductivity of vermicular graphite iron[J]. INTERNATIONAL JOURNAL OF MATERIALS RESEARCH,2019,110(7):591-599.
APA	Ma, Zhijun,Yang, Zhong,Guo, Yongchun,Tao, Dong,Li, Jianping,&Wang, Shaogang.(2019).3D morphology characterization of graphite and its effect on the thermal conductivity of vermicular graphite iron.INTERNATIONAL JOURNAL OF MATERIALS RESEARCH,110(7),591-599.
MLA	Ma, Zhijun,et al."3D morphology characterization of graphite and its effect on the thermal conductivity of vermicular graphite iron".INTERNATIONAL JOURNAL OF MATERIALS RESEARCH 110.7(2019):591-599.

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