Processing and characterization of in-situ intermetallic and ceramic particles reinforced magnesium matrix composites

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

doi:10.1016/j.jalmes.2026.100245

Processing and characterization of in-situ intermetallic and ceramic particles reinforced magnesium matrix composites

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

^*Corresponding author for this work

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The present study aims to investigate the microstructure and mechanical properties of magnesium matrix composites reinforced with in-situ formed Al₃Ti intermetallic and Al₂O₃ 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. Al₃Ti, Al₂O₃, and other ceramic particles are identified in the composite. Al₃Ti particles are needle-like, and Al₂O₃ 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.

Original language	English
Article number	100245
Journal	Journal of Alloys and Metallurgical Systems
Volume	14
DOIs	https://doi.org/10.1016/j.jalmes.2026.100245
Publication status	Published - 06-2026

All Science Journal Classification (ASJC) codes

Materials Science (miscellaneous)
Surfaces, Coatings and Films
Metals and Alloys

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10.1016/j.jalmes.2026.100245

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Shivalingappa, D., Harish, Kumar, R. S., Raghavendra, N., Shekar, K., Venkatesh, M. K., Prasad, C. D., Dileep, B. P., Smitha, B. S., & Prabhu, S. R. (2026). Processing and characterization of in-situ intermetallic and ceramic particles reinforced magnesium matrix composites. Journal of Alloys and Metallurgical Systems, 14, Article 100245. https://doi.org/10.1016/j.jalmes.2026.100245

@article{8e304c626ca1497e96d142d268f9b864,

title = "Processing and characterization of in-situ intermetallic and ceramic particles reinforced magnesium matrix composites",

abstract = "The present study aims to investigate the microstructure and mechanical properties of magnesium matrix composites reinforced with in-situ formed Al₃Ti intermetallic and Al2O3 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. Al3Ti, Al2O3, and other ceramic particles are identified in the composite. Al3Ti particles are needle-like, and Al2O3 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.",

author = "D. Shivalingappa and Harish and Kumar, \{R. Suresh\} and N. Raghavendra and K. Shekar and Venkatesh, \{M. K.\} and Prasad, \{C. Durga\} and Dileep, \{B. P.\} and Smitha, \{B. S.\} and Prabhu, \{Subramanya R.\}",

note = "Publisher Copyright: {\textcopyright} 2026 The Authors.",

year = "2026",

month = jun,

doi = "10.1016/j.jalmes.2026.100245",

language = "English",

volume = "14",

journal = "Journal of Alloys and Metallurgical Systems",

issn = "2949-9178",

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T1 - Processing and characterization of in-situ intermetallic and ceramic particles reinforced magnesium matrix composites

AU - Shivalingappa, D.

AU - Harish,

AU - Kumar, R. Suresh

AU - Raghavendra, N.

AU - Shekar, K.

AU - Venkatesh, M. K.

AU - Prasad, C. Durga

AU - Dileep, B. P.

AU - Smitha, B. S.

AU - Prabhu, Subramanya R.

PY - 2026/6

Y1 - 2026/6

N2 - The present study aims to investigate the microstructure and mechanical properties of magnesium matrix composites reinforced with in-situ formed Al₃Ti intermetallic and Al2O3 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. Al3Ti, Al2O3, and other ceramic particles are identified in the composite. Al3Ti particles are needle-like, and Al2O3 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.

AB - The present study aims to investigate the microstructure and mechanical properties of magnesium matrix composites reinforced with in-situ formed Al₃Ti intermetallic and Al2O3 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. Al3Ti, Al2O3, and other ceramic particles are identified in the composite. Al3Ti particles are needle-like, and Al2O3 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.

UR - https://www.scopus.com/pages/publications/105035257827

UR - https://www.scopus.com/pages/publications/105035257827#tab=citedBy

U2 - 10.1016/j.jalmes.2026.100245

DO - 10.1016/j.jalmes.2026.100245

M3 - Article

AN - SCOPUS:105035257827

SN - 2949-9178

VL - 14

JO - Journal of Alloys and Metallurgical Systems

JF - Journal of Alloys and Metallurgical Systems

M1 - 100245

ER -

Processing and characterization of in-situ intermetallic and ceramic particles reinforced magnesium matrix composites

Abstract

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