Journal Article

PUBDB-2025-03639

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Effect of Zn and Al alloying on slip system activation and strengthening mechanisms in magnesium alloys

Zhu, G. (Corresponding author)Extern* ; Kim, Y. M.Extern* ; Lienert, U.DESY* ; Letzig, D.Extern* ; Yi, S. (Corresponding author)Extern*

2025
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.scriptamat.2025.116862  doi:10.3204/PUBDB-2025-03639

Abstract: The deformation mechanisms of Zn- and Al-alloyed Mg were investigated using in-situ three-dimensional synchrotron X-ray diffraction (3DXRD). The activation of basal and prismatic slip was quantified in Mg-1Al (A1), Mg-1 Zn (Z1), and Mg-1Al-1 Zn (ZA11) alloys in order to assess the influence of solute alloying on slip system competition. The results reveal that the combined addition of Zn and Al facilitates prismatic slip activation by reducing its critical resolved shear stress (CRSS), and leads to the lowest RSS$_{prism}$/RSS$_{basal}$ ratio of 5.44, compared to 6.25 in A1 and 6.23 in Z1. This indicates a more balanced activation of basal and non-basal slip systems. Grain rotation analysis further suggests that ZA11 accommodates deformation more effectively through non-basal slip, reducing stress localization. These findings provide direct insights into how solute interactions influence slip system activity and offer guidelines for optimizing Mg alloys for improved ductility and mechanical performance.

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Contributing Institute(s):

1. FS DOOR-User (FS DOOR-User)
2. Experimentebetreuung PETRA III (FS-PET-D)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)

Experiment(s):

1. PETRA Beamline P21.2 (PETRA III)

Appears in the scientific report 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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