China Foundry
Title: Improvement in oxidation resistance of Cantor alloy through microstructure tailoring
Author: Bao-lin Pang1 , Man Wang1, 3, Yue-gang Shen1, *Xiao-li Xi1, 2, and Zuo-ren Nie1, 2, 3
Address: 1. Collaborative Innovation Center of Capital Resource-Recycling Material Technology, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; 2. Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100124, China; 3. National Engineering Laboratory for Industrial Big-data Application Technology, Beijing University of Technology, Beijing 100124, China
Key words: Cantor alloy; annealing temperature; grain size; twins; oxidation behavior
CLC Nmuber: TG146.1+ 6
Document Code: A
Article ID: 1672-6421(2022)06-503-08
Abstract:
A method of improving the oxidation resistance of Cantor alloy through microstructure tailoring was revealed. Samples with distinctive microstructures were achieved by different annealing treatments on the cold-rolled Cantor alloy. Oxidation test was then carried out on the various annealed samples at 800 °C for 24 h in air. The oxidation behavior was evaluated in terms of oxidation rate, surface and cross-section microstructure characterization. Although stratified oxide layers including outer Mn2O3 and inner Cr2O3 were observed in all the annealed samples, the thickness of Mn2O3 and Cr2O3 layers was different. Also, the samples exhibited different oxidation rates. The results indicate that the oxidation resistance of various annealed samples is closely related with grain size as well as twin density.