Investigating the influence of pressure on the ignition and oxidation behavior of EV33 alloy

Longbiao Feng; Lunyong Zhang; Hongxian Shen; Ziao Qiu; Guanyu Cao; Fuyang Cao; Zhiliang Ning; Yongjiang Huang; Jianfei Sun

Journal of Materials Research and Technology (Sep 2024)

Investigating the influence of pressure on the ignition and oxidation behavior of EV33 alloy

Longbiao Feng,
Lunyong Zhang,
Hongxian Shen,
Ziao Qiu,
Guanyu Cao,
Fuyang Cao,
Zhiliang Ning,
Yongjiang Huang,
Jianfei Sun

Affiliations

Longbiao Feng: National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
Lunyong Zhang: National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China; Corresponding author. National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China.
Hongxian Shen: National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China; Corresponding author. National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China.
Ziao Qiu: National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
Guanyu Cao: National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
Fuyang Cao: National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
Zhiliang Ning: National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
Yongjiang Huang: National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
Jianfei Sun: National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China; Corresponding author. National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China.

Journal volume & issue: Vol. 32
pp. 3640 – 3651

Abstract

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The study investigates ignition and oxidation behavior of Mg-3Nd-3Gd-0.2Zr-0.2Zn (wt.%) (EV33 alloy) in air and varying pressure. EV33 exhibits easy ignition in air but not under specific pressure conditions. Surface microstructure evolution and detailed discussion of ignition mechanisms using oxidation mechanism and residual stress of oxide film are presented. Findings suggest a correlation between alloy ignition and oxide film rupture. Surface oxidation film rupture is the direct cause of ignition in magnesium alloys, and this phenomenon has been observed and documented for the first time. The residual stresses calculated under atmospheric conditions and at pressures of 0.05 MPa, 0.1 MPa, and 0.15 MPa (with air as the pressure medium) are as follows: 0.282 GPa, 0.561 GPa, 2.271 GPa, and 5.242 GPa.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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