High-temperature oxidation resistance behavior of porous Ni-16Cr-9Al materials-Reference-Cited by-同舟云学术

High-temperature oxidation resistance behavior of porous Ni-16Cr-9Al materials

Published:2019-10-16 Issue:10 Volume:110 Page:969-978
ISSN:2195-8556
Container-title:International Journal of Materials Research
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Author:

Wu Liang¹²,Yang Ge¹²,Xu Yang¹²,Xiao Yifeng¹²³,Li Xi⁴⁵,Xu Yanfei¹²,Qian Jinwen¹²³,Ou Yan¹²,Zhang Minghua¹²,Zhang Qiankun¹²,He Yuehui⁶

Affiliation:

1. aSchool of Mechanical Engineering, Xiangtan University, Xiangtan, P.R. China

2. bKey Laboratory of welding robot and application technology of Hunan Province, Xiangtan University, Xiangtan, P.R. China

3. cEngineering Research Center of Complex Trajectory Processing Technology and Equipment of Ministry of Education, Xiangtan University, Xiangtan, P.R. China

4. dSchool of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, NSW, Australia

5. eAustralian Nuclear Science and Technology Organization, Lucas Heights, NSW, Australia

6. fState Key Laboratory of Powder Metallurgy, Central South University, Changsha, P.R. China

Abstract

AbstractThe oxidation behavior of porous Ni-16Cr-9Al alloys at 800 and 1 000 °C was studied using the isothermal temperature oxidation method. The differences in surface morphology, phase and pore structure between oxidized and non-oxidized materials were characterized by means of scanning electron microscopy, X-ray diffraction analysis and mercury intrusion porosimetry. The results revealed that the oxidation rate of the samples which were oxidized for 420 h at 800 °C was 0.012%2 h−1 and the oxidation products were Al2O3 and Cr2O3. The oxidation rate of the samples which were oxidized for 390 h at 1 000 °C was 0.415%2 h−1 and the oxidation products were Al2O3, Cr2O3 and Ni(Cr, Al)2O4. All the oxidation kinetics curves obeyed the parabolic law, exhibiting excellent high temperature oxidation resistance.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics

Link

https://www.degruyter.com/document/doi/10.3139/146.111822/pdf

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