Process Optimization of High Entropy Alloys by Laser Additive Manufacturing

A study by Modupeola Dada of Tshwane University of Technology investigates laser additive manufacturing of AlCoCrFeNiCu and AlTiCrFeCoNi high entropy alloy coatings. The research examines the influence of laser power (1200-1600 W) and scan speed (8-12 mm/s) on microstructure, hardness, and coating geometry. Results indicate defect-free structures with homogeneous adhesion to a mild steel substrate at a preheat temperature of 400 °C.

Use Cases

• Optimizing laser additive manufacturing parameters based on laser power and scan speed.
• Analyzing the relationship between processing conditions and resulting microstructure and hardness.
• Developing predictive models for coating geometry (height, width, depth) based on input parameters.
• Evaluating the performance of high entropy alloys for potential aerospace coatings and structural applications.

Strengths

• Study investigates two specific high entropy alloy compositions (AlCoCrFeNiCu and AlTiCrFeCoNi).
• Examines a defined range of laser parameters (1200-1600 W power, 8-12 mm/s scan speed).
• Reports on multiple output properties: microstructure, hardness, and coating geometry.

Limitations

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Provenance

Source

paperswithcode

Collection Method

Experimental research involving laser additive manufacturing and materials characterization.