Research Progress on Synergistic Regulation of Strain Rate， Temperature， and Composition in High-Speed Extruded Magnesium Alloys

doi:10.19894/j.issn.1000-0518.250385

Chinese Journal of Applied Chemistry ›› 2026, Vol. 43 ›› Issue (2): 157-166.DOI: 10.19894/j.issn.1000-0518.250385

• Review •

Research Progress on Synergistic Regulation of Strain Rate， Temperature， and Composition in High-Speed Extruded Magnesium Alloys

Run-Ze LI¹^,²^,³, Li-Ren CHENG¹^,²(), Chao-Jie CHE¹^,², Xin-Lin LI³, VIACHASLAU-A TAMILA⁴, Hong-Jie ZHANG¹^,²^,⁵

^1.China-Belarus Belt and Road Joint Laboratory for Advanced Materials and Manufacturing，Changchun Institute of Apllied Chemistry，Chinese Academy of Sciences，Changchun 130022，China
^2.Key Laboratory of Rare Earth Resource Utilization，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun 130022，China
^3.College of Materials Science and Chemical Engineering，Harbin Engineering University，Harbin 150001，China
^4.Department of Engineering Technology，Belarusian National Technical University，Minsk 220013，Belarus
^5.Department of Chemistry，Tsinghua University，Beijing 100084，China

Received:2025-10-09 Accepted:2025-12-12 Published:2026-02-01 Online:2026-03-06
Contact: Li-Ren CHENG
About author:lrcheng@ciac.ac.cn
Supported by:
Jilin Provincial Science and Technology Development Plan(SK2202302038);the National Key R&D Program of China(2020YFE0204500)

Abstract

Abstract:

Extrusion forming is an important plastic processing method for magnesium alloys. However， the conventional extrusion speed of magnesium alloys is much lower than that of aluminum alloys， resulting in low production efficiency and high cost， which limits the large-scale application of extruded magnesium alloy profiles. High-speed extrusion technology provides a possibility for increasing the extrusion speed of magnesium alloys through effects such as adiabatic temperature rise， dynamic recrystallization （DRX） refinement， and supersaturated solid solution induced by high strain rates. Furthermore， the composition of magnesium alloys has a significant impact on their extrudability， and only some magnesium alloy systems are suitable for high-speed extrusion forming. This paper systematically reviews the synergistic regulation mechanisms of strain rate， temperature， and alloy composition on the microstructure and mechanical properties of high-speed extruded magnesium alloys， summarizes the current research progress， and prospects the future development directions， so as to promote the application of this technology in large-scale industry.

Key words: Magnesium alloys, High-speed extrusion, Strain rate, Temperature, Alloy composition, Microstructure, Mechanical properties

CLC Number:

O614

Run-Ze LI, Li-Ren CHENG, Chao-Jie CHE, Xin-Lin LI, VIACHASLAU-A TAMILA, Hong-Jie ZHANG. Research Progress on Synergistic Regulation of Strain Rate， Temperature， and Composition in High-Speed Extruded Magnesium Alloys[J]. Chinese Journal of Applied Chemistry, 2026, 43(2): 157-166.

Figures/Tables 5

Fig.1 TEM images of the studied WE43 alloy with a strain of 0.325 deformed at 2100 s-1 and 25 ℃：（A， B） Extrusion direction；（C， D） Extrusion radial direction［14］

Fig.2 The EBSD maps（A-D） of RS ZK60 magnesium alloy at different conditions. The OM （E， G， I） and SEM （F， H， J） fractures topography of RS ZK60 asextruded magnesium alloys［19］

Fig.3 TEM micrographs of LTSS-extruded AZ80：（A） dark field，（B） bright field （inset in （A）： Diffraction pattern of ［001］ Mg17Al12）［25］

Fig.4 Optical images of the extruded alloys at different temperatures［20］

Table 1 Function of adding alloying elements in high-speed extrusion

Element	Mechanism of action	Examples of effects
Sn	Reduce SFE， promote twins， and inhibit precipitation and coarsening	DRX score improvement and grain refinement
Ca	Grain boundary segregation inhibits grain boundary migratio	Ultrafine crystals+nano-precipitation， YS＞300 MPa
Bi	Regulating the precipitation size of Mg?Bi?， affects DRX	Fine precipitated phases inhibit DRX， while coarse precipitated phases promote it
Zn/Mn	Promote precipitation and activate non-fundamental plane slip	The synergy of strength and plasticity is enhanced
RE	Weaken texture， reduce CRSS， and inhibit high-temperature roughening	High-temperature strength remains， while anisotropy decreases

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Research Progress on Synergistic Regulation of Strain Rate， Temperature， and Composition in High-Speed Extruded Magnesium Alloys

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References 47

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