Computational Assessment of Thermal Conductivity of Compacted Graphite Cast Iron

Yue Wu; Jianping Li; Zhong Yang; Zhijun Ma; Yongchun Guo; Dong Tao; Tong Yang; Minxian Liang

doi:10.1155/2019/8562102

Advances in Materials Science and Engineering (Jan 2019)

Computational Assessment of Thermal Conductivity of Compacted Graphite Cast Iron

Yue Wu,
Jianping Li,
Zhong Yang,
Zhijun Ma,
Yongchun Guo,
Dong Tao,
Tong Yang,
Minxian Liang

Affiliations

Yue Wu: Shaanxi Province Engineering Research Centre for Aluminium/Magniesum Light Alloy and Composites, School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
Jianping Li: Shaanxi Province Engineering Research Centre for Aluminium/Magniesum Light Alloy and Composites, School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
Zhong Yang: Shaanxi Province Engineering Research Centre for Aluminium/Magniesum Light Alloy and Composites, School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
Zhijun Ma: Shaanxi Province Engineering Research Centre for Aluminium/Magniesum Light Alloy and Composites, School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
Yongchun Guo: Shaanxi Province Engineering Research Centre for Aluminium/Magniesum Light Alloy and Composites, School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
Dong Tao: Shaanxi Province Engineering Research Centre for Aluminium/Magniesum Light Alloy and Composites, School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
Tong Yang: Shaanxi Province Engineering Research Centre for Aluminium/Magniesum Light Alloy and Composites, School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
Minxian Liang: Shaanxi Province Engineering Research Centre for Aluminium/Magniesum Light Alloy and Composites, School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China

DOI: https://doi.org/10.1155/2019/8562102
Journal volume & issue: Vol. 2019

Abstract

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Two-dimensional FE models of CGI with different pearlite contents for thermal conductivity analysis were established according to the real metallographic images obtained by Pro/E and ANSYS. Meanwhile, thermal conductivity of CGI with different pearlite contents was tested through the laser flash method. It is indicated that the thermal conductivity of CGI declines with the increase of pearlite. When pearlite is increased from 10% to 80%, the experimental values decline from 46.63 W/m·K to 36.86 W/m·K, reducing by 21%. However, this declining tendency becomes gentle and slight when pearlite is more than 40%. In addition, the calculation results with the consideration of interfacial contact thermal conductance (ICTC) and pearlite are much close to experimental values; especially when pearlite is 80%, the difference between them is only about 2%. It can be concluded that the FE models are convenient and reasonable to analyze thermal conductivity of CGI.

Published in Advances in Materials Science and Engineering

ISSN: 1687-8434 (Print); 1687-8442 (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://onlinelibrary.wiley.com/journal/5928

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