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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 PublicationINTERNATIONAL JOURNAL OF MATERIALS RESEARCH
ISSN1862-5282
Volume110Issue:7Pages:591-599
AbstractIt 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.
KeywordVermicular graphite iron Thermal conductivity 3D connectivity X-ray tomography
Indexed BySCI
Language英语
WOS IDWOS:000475500300001
PublisherCARL HANSER VERLAG
Citation statistics
Document Type期刊论文
Identifierhttp://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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