Study of Thermal Diffusion on Oxidation Resistance of ZG40Cr24

Hai Tao Wang; Shen Jie Zhou; Hua Shun Yu

doi:10.4028/www.scientific.net/AMM.488-489.14

Paper Titles

Research on the Effective Rules for the Impact Toughness and Hardness of Austempered Ductile Iron (ADI) by Austempering Parameters
p.3

The Structure and Thermal Properties of ZrAlYN Films Deposited by Magnetron Sputtering
p.9

Study of Thermal Diffusion on Oxidation Resistance of ZG40Cr24
p.14

Effect of Melamine / Urea Modified Phenol Formaldehyde Resin Binder on the Mechanical Properties of Glass-Fiber Felt
p.18

Stopping Power and Self-Energy for a Fast Proton in Carbon Nanotubes
p.22

Wake Potential for Dust Grains in a Flowing Plasma
p.26

The Effect of Aluminum Content on TiO₂ Coated Carbon Fiber Reinforced Magnesium Alloy Composites
p.30

Performance Test and Research of Ceramic Fiberboard
p.36

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 488-489Study of Thermal Diffusion on Oxidation Resistance...

Study of Thermal Diffusion on Oxidation Resistance of ZG40Cr24

Abstract:

Based on heat resistant steel ZG40Cr24, test alloys were cast by intermediate frequency induction furnace with non-oxidation method by alloying of aluminium and silicon. The oxidation resistance at 1100°C for 500 hours of test alloys was carried out according to oxidation weight gain method. The thermal diffusion were tested by Laser Heat Conductivity. The thickness of oxide scale was detected by Coating Thickness Meter. Experimental results showed that the thermal diffusion of oxide scale affected its oxidation resistance exactly, the lower thermal diffusion coefficient matched the higher oxidation resistance. The oxide scale thermal diffusion coefficient of ZG40Cr24+2%wt.Si+4%wt.Al was only 0.00092cm².s^-1, endowing itself 0.0633g.m^-2.h^-1 oxidation weight gain rate, reaching the complete oxidation resistance. The mechanism of the effect of thermal diffusion on oxidation resistance lay in that the lower thermal diffusion represented the inert inner particles of materials, the few quantity of diffusion particles, and lower transporting and moving rate. So the oxidation rate slowed down, realizing higher oxidation resistant property for oxide scales.

You might also be interested in these eBooks

Materials Science, Civil Engineering and Architecture Science, Mechanical Engineering and Manufacturing Technology

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 488-489)

Pages:

14-17

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.488-489.14

Citation:

Cite this paper

Online since:

January 2014

Authors:

Hai Tao Wang*, Shen Jie Zhou, Hua Shun Yu

Keywords:

Heat Resistant Steel, Oxidation Resistance, Oxide Scale, Thermal Diffusion

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] C. X. Shi, Z. Y. Zhong: Acta Metallurgica Sinica, Vol. 33 (1997), p.1 (in Chinese).

Google Scholar

[2] A. R. Salehi, S. Serajzadeh, N. Yazdipour: Materials Chemistry and Physics, Vol. 101 (2007), p.153.

Google Scholar

[3] Ministry of Metallurgical Industry of China: GB/T13303-1991, Steels-Determination Method of Oxidation (Standard Press of China, Beijing 1991) (In Chinese).

Google Scholar

[4] A. M. Mansanares, A. C. Bento, N. Vargas: Physical review B, Vol. 42 (1990), p.4477.

Google Scholar

[5] T. Tominaga, K. Ito: Journal of applied physics, Vol. 27 (1988), p.2392.

Google Scholar