Processing and Characterization of In-Situ Intermetallic and Ceramic Particles Reinforced Magnesium Matrix Composites

The present study aims to investigate the microstructure and mechanical properties of magnesium matrix composites reinforced with in-situ formed Al₃Ti intermetallic and Al 2 O 3 ceramic particles. A novel two-step stir casting technique is used to fabricate a magnesium composite by dissolving a pre-prepared aluminium composite into a magnesium melt. XRD, optical microscopy, and FE-SEM with EDS are used to analyze the in situ-formed particles in the composite. Al 3 Ti, Al 2 O 3 , and other ceramic particles are identified in the composite. Al 3 Ti particles are needle-like, and Al 2 O 3 particles are nearly spherical. Improved hardness but reduced tensile properties are observed in the magnesium composite compared to the cast Mg-9 wt% Al matrix alloy. Fractographic analysis of tensile-tested specimens reveals a mixed-mode failure, predominantly brittle with minor ductile fracture.

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Publication Details

Journal
Journal of Alloys and Metallurgical Systems
Published
2026-03-01
DOI
https://doi.org/10.1016/j.jalmes.2026.100245
Primary Topic
Aluminum Alloys Composites Properties
Type
article
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article

Processing and Characterization of In-Situ Intermetallic and Ceramic Particles Reinforced Magnesium Matrix Composites

Subramanya R B Prabhu, C.Durga Prasad, K Shekar, B S Smitha et al.
Journal of Alloys and Metallurgical Systems
Aluminum Alloys Composites Properties
article

Processing and Characterization of In-Situ Intermetallic and Ceramic Particles Reinforced Magnesium Matrix Composites

Subramanya R B Prabhu, C.Durga Prasad, K Shekar, B S Smitha, R Suresh Kumar, B P Dileep, N. Raghavendra, Harish, M K Venkatesh, D. Shivalingappa
article en

Abstract

The present study aims to investigate the microstructure and mechanical properties of magnesium matrix composites reinforced with in-situ formed Al₃Ti intermetallic and Al 2 O 3 ceramic particles. A novel two-step stir casting technique is used to fabricate a magnesium composite by dissolving a pre-prepared aluminium composite into a magnesium melt. XRD, optical microscopy, and FE-SEM with EDS are used to analyze the in situ-formed particles in the composite. Al 3 Ti, Al 2 O 3 , and other ceramic particles are identified in the composite. Al 3 Ti particles are needle-like, and Al 2 O 3 particles are nearly spherical. Improved hardness but reduced tensile properties are observed in the magnesium composite compared to the cast Mg-9 wt% Al matrix alloy. Fractographic analysis of tensile-tested specimens reveals a mixed-mode failure, predominantly brittle with minor ductile fracture.

Journal of Alloys and Metallurgical Systems
Birla Institute of Technology, Mesra (IN), Indian Institute of Technology Roorkee (IN), Manipal Academy of Higher Education (IN), Narsee Monjee Institute of Management Studies (IN), Nightingales Medical Trust (IN), Bristol-Myers Squibb (India) (IN), Mahindra University (IN), Amrita Vishwa Vidyapeetham (IN)
Sustainable cities and communities
Openalex Percentile: Top 6%
Aluminum Alloys Composites Properties
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Processing and Characterization of In-Situ Intermetallic and Ceramic Particles Reinforced Magnesium Matrix Composites — Subramanya R B Prabhu, C.Durga Prasad, et al. · Journal of Alloys and Metallurgical Systems (2026) | TGRS Research Map | TGRS