In-plane Compression and Evolution Texture to Improve Drawability of Rolled AZ31B Magnesium-Alloy Sheets

Article Sidebar

PDF
Published: Sep 16, 2025
Keywords:
Magnesium alloy sheet Sheet metal Forming Drawing In-plane compression test

Main Article Content

M. Okawa
Unit of Plastic Forming Engineering, Polytechnic University of Japan, Tokyo, 1870035, Japan
T. Murakami
Unit of Principles of Vocational Skills Development, Polytechnic University of Japan, Tokyo, 1870035, Japan
T. Kuroki
Unit of Plastic Forming Engineering, Polytechnic University of Japan, Tokyo, 1870035, Japan 2 Unit of Principles of Vocational Skills Development, Polytechnic University of Japan, Tokyo, 1870035, Japan
A. Takasaki
Department of Engineering Science and Mechanics, Shibaura Institute of Technology, Tokyo, 1358548, Japan

Abstract

Room-temperature forming of Mg alloy sheets is desirable over warm forming to mitigate machining hazards, lubricant degradation, and energy consumption. This study enhances the drawability of rolled Mg–3Al–1Zn (AZ31B) alloys at room temperature through in-plane compaction. Due to a limiting drawing ratio (LDR) below ~1.3, typical deep drawability parameters (n-value, r-value, tensile strength) could not be used. Instead, the activation of prism texture in surface sheets and the suppression of basal texture effectively accommodated thickness strain, improving drawability. In-plane pre-compression along angles relative to the rolling direction (RD) — 0° (RD), 30°, 45°, 60° and 90° (transverse directions, TDs) — with strains of 0.06 or 0.08 further enhanced formability. This process increased circumferential strain from 0.010 in as-received material to 0.227 in 6.0% pre-compressed specimens, demonstrating a significant improvement in room-temperature formability for AZ31B magnesium-alloy sheets.

Article Details

How to Cite
Okawa, M., Murakami, T., Kuroki, T., & Takasaki, A. (2025). In-plane Compression and Evolution Texture to Improve Drawability of Rolled AZ31B Magnesium-Alloy Sheets. Journal of Research and Applications in Mechanical Engineering, 13(3), JRAME–25. retrieved from https://ph01.tci-thaijo.org/index.php/jrame/article/view/258144
Issue
Vol. 13 No. 3 (2025)
Section
RESEARCH ARTICLES
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

by-nc-sa

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

References

Chino Y, Huang X, Saito N, Nishiwaki T, Mohri T, Matsuda M. Effects of process parameters on room-temperature deep drawability of AZ31B magnesium alloy sheets with suppressed basal texture. Journal of the Japan Society for Technology of Plasticity (JSTP). 2023;64(744):13–18.

Chino Y, Mabuchi M, Kishihara R, Hosokawa H, Yamada Y, Wen C, Shimojima K, Iwasaki H. Mechanical properties and press formability at room temperature of AZ31 Mg alloy processed by single roller drive rolling. Materials Transactions. 2002;43(10):2554–2560.

Sunaga Y, Tanaka Y, Asakawa M, Katoh M, Kobayashi M. Effect of twin formation by repetitive bending on texture of AZ61 magnesium alloy sheet and improvement of formability. Journal of the Japan Institute of Light Metals (Keikinzoku). 2009;59(12):655–658.

Nishino S. Press forming technology of magnesium alloy sheets. Journal of the Japan Institute of Light Metals (Keikinzoku). 2011;61(6):269–273.

Kim S-J, Lee C, Koo J, Lee J, Lee Y-S, Kim D. Improving the room-temperature formability of a magnesium alloy sheet by texture control. Materials Science and Engineering A. 2018;724:156–163.

Park SH, Lee JH, Huh Y-H, Hong S-G. Enhancing the effect of texture control using {10-12} twins by retarding detwinning activity in rolled Mg–3Al–1Zn alloy. Scripta Materialia. 2013;69(11):797–800.

Kohzu M, Kii K, Nagata Y, Nishio H, Higashi K, Inoue H. Texture randomization of AZ31 magnesium alloy sheet for improvement of cold formability by combination of rolling and high temperature annealing. Journal of the Japan Institute of Light Metals (Keikinzoku). 2010;60(5):237–243.

Yamamoto A, Terashita M, Tsubakino H. Textures in AMCa602 and AZ31B magnesium alloys formed by wavy bend pressing. Journal of the Japan Institute of Light Metals (Keikinzoku). 2007;57(3):99–104.

Okawa M, Mori S, Hiyokawa K, Fujii N, Murakami T, Takasaki A. Improvement of room-temperature formability of rolled AZ31B magnesium alloy sheets by in-plane compression and subsequent heat treatment. Journal of the Japan Society for Technology of Plasticity (JSTP). 2019;60(706):315–320.

Noguchi T, Suzuki K, Huang X, Saito N, Tsukada Y, Koyama T, Chino Y. Effects of bending and tension deformation on texture evolution and room temperature formability of AZ31B alloy sheets. Journal of the Japan Institute of Metals and Materials. 2019;83(6):212–220.

Okawa M, Mori S, Murakami T, Takasaki A. Relation between flange fracture and blankholder force in the process of cylindrical deep drawing of AZ31B rolled magnesium alloy sheets. Journal of the Japan Institute of Light Metals (Keikinzoku). 2019;69(2):113–119.

Wang L, Cao M, Cheng W, Zhang H, Cao X, Mostaed E. Improved stretch formability of AZ31 magnesium thin sheet by induced {10-12} tension twins. JOM. 2018;70(10):2321–2326.

Park SH, Hong S-G, Lee CS. Enhanced stretch formability of rolled Mg–3Al–1Zn alloy at room temperature by initial {10-12} twins. Materials Science and Engineering A. 2013;578:271–276.

Hama T, Suzuki T, Hatakeyama S, Fujimoto H, Takuda H. Role of twinning on the stress and strain behaviors during reverse loading in rolled magnesium alloy sheets. Materials Science and Engineering A. 2018;725:8–18.

Kuwabara T, Kumano Y, Ziegelheim J, Kurosaki I. Tension–compression asymmetry of phosphor bronze for electronic parts and its effect on bending behavior. International Journal of Plasticity. 2009;25(9):1759–1776.

Katahira T, Hosokawa S, Naka T, Kohzu M, Adachi H, Yoshida F. Effect of temperature on cyclic plastic deformation of AZ31 Mg alloy sheet. Journal of the Japan Society for Technology of Plasticity. 2016;57(661):135–139.

Kelley EW, Hosford W. Plane-strain compression of magnesium and magnesium alloy crystals. Transactions of the Metallurgical Society of AIME. 1968;242(1):5–13.

Partridge PG. The crystallography and deformation modes of hexagonal close-packed metals. Metallurgical Reviews. 1967;12(1):169–194.