Paper Titles
Electrochemical Synthesis of Ni-Co-W-Zr(P) Quinary Medium Entropy Alloy for Enhanced Hydrogen Evolution Reaction
p.17
Copper-Nickel Alloy Coating on Cast Iron by Cold Spray: Microstructure and Thermal Analysis
p.25
Effects of Changes in Crystal Structure by Plastic Deformation on Corrosion Resistance of Magnesium Alloys
p.33
Effect of Grain Size on the Behavior of Exfoliation Corrosion in Cold-Rolled Mg-14Mass%Li-3Mass%Al Alloy
p.39
Neutralization of Impurity Elements of Cu and Ni in Mg-Zn Alloy by Dissolution into MgZn2 Phase
p.45
Relationship between Maximum Bending Stress and Surface Roughness of AZ31 Magnesium Alloy Fully Corroded in Salt-Water Environment
p.51
Multi-Scale Investigation of Oxygen-Induced Damage in Nickel-Based Superalloy Alloy 718
p.57
Effects of Alloying Elements on Marine Corrosion Resistance of Structural Steel
p.63
Corrosion Fatigue Property of Steel\Aluminum Alloy Weld-Bonded Lap Joint in High Temperature and High Humidity
p.71

Relationship between Maximum Bending Stress and Surface Roughness of AZ31 Magnesium Alloy Fully Corroded in Salt-Water Environment

Article Preview

Abstract:

AZ31 magnesium alloy is a representative magnesium alloy with well-balanced mechanical properties and castability. However, AZ31 magnesium alloy also has the disadvantage of poor corrosion resistance due to its low aluminium content. In previous research, it is known that the corrosion mechanism is such that filamentous corrosion is generated and then changes to full-scale corrosion. However, the relationship between corrosion and bending properties has not been revealed. In this study, AZ31 magnesium alloy was immersed in salt water with a concentration of 5%, and three-point bending tests were conducted to confirm changes in bending stress and strain due to strength loss caused by corrosion. Then, investigated which parameters Ra and Rz, which are indicators of surface roughness, are related to the maximum bending stress of the fully corroded AZ31 magnesium alloy. As a result, when evaluating the relationship between maximum bending stress and corrosion, it was found that it is better to evaluate by Ra of the corroded surface rather than by Rz.

You might also be interested in these eBooks
Coatings and Corrosion Behaviour of Structural Metals View Preview

Info:

Periodical:

Solid State Phenomena (Volume 384)

Pages:

51-56

DOI:

https://doi.org/10.4028/p-Cv4Hp6

Citation:

Cite this paper

Online since:

January 2026

Authors:

Keishi Iizuka*, Taro Kato, Kentaro Yamada, Mitsuaki Furui

Keywords:

AZ31 Magnesium Alloy, Corrosion, Saltwater-Immersion Test, Surface Roughness, Three-Point Bending Test

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2026 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] M. Minami, J. Zhu, M. Miura and Y. Mae, Finding and quantitative evaluation of minute bruise on metal surface using hairline, Transactions of the Japan Society of Mechanical Engineers C. 72 (2016) 2240-2247.

DOI: 10.1299/kikaic.72.2240

Google Scholar

[2] S. Maeda: Filiform corrosion, Corrosion Engineering. 30 (1981) 421-422.

Google Scholar

[3] N. Katsumata and S. Hoshino: Effect of corrosion on mechanical properties of aluminium alloys, Report of the Yamanashi Industrial Technology Centre. 27 (2013) 73-77.

Google Scholar

[4] G. Zhang, A. Nishi kata and T. Tsuru: Evaluation of Hot Corrosion Resistance of Ni. Base Alloys Using Immersion Test, Coating Test and Embedding Test, Journal of the Japan Institute of Metals. 61 (1997) 586-594.

DOI: 10.2320/jinstmet1952.61.7_586

Google Scholar

[5] Y. Sawada and S. Kubo: A proposal of an inverse analysis method for estimating nonlinear stress-strain relation from three-point bending test, Transactions of the Japan Society of Mechanical Engineers. 81 (2015) 1-15.

Google Scholar

[6] H. Mori, K. Fujino, K. Kurita, Y. Chino, N. Saito, M. Noda, H. Komai and H. Obara: Application of the Flame-Retardant Magnesium Alloy to High Speed Rail Vehicles, Materia Japan. 52 (2013) 484-490.

DOI: 10.2320/materia.52.484

Google Scholar