This book collects peer reviewed and selected papers presented at 4th International Conference on Materials Engineering and Functional Materials, held in Da Nang, Vietnam, during February 21-23, 2025. The conference provides an international forum for researchers and practitioners to report most recent innovations and developments, summarize state-of-the-art, and exchange ideas and advances in all aspects of material engineering and functional materials. The topics discussed in the book include functional materials, metallic alloys, tool materials, superplastic materials, ceramics and glasses, optoelectronic materials, smart materials, engineering polymers, nuclear fuel materials, sensors, and surfaces. This book will prove to be a useful reference for researchers and practitioners working in the field of materials' engineering and functional materials.

Presents selected papers from the 4th International Conference on Materials Engineering and Functional Materials Summarizes the state-of-the-art technology in all aspects of material engineering and functional materials Provides a useful reference for researchers and practitioners working in the field of advancements of novel materials

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1. The Effect of Post Weld Heat Treatment and Its Efficiency on the Axle Housing of 440 Steel Automotive Press Hot.- 2. Application of Shot Blasting on Bronze Alloy to Enhance Surface Integrity.- 3. Numerical Simulation of Mandrel Cold Extrusion Pro-cess for Damaged Holes in TC4 Plates Under Stress Wave Loading.- 4. Experimental Investigations to Evaluate Surface Fatigue Wear in Journal Bearing by Using Vibration Signal Analysis.- 5. Adsorption Capability of Magnetic Biochar Derived from Longan Peel for Diesel Oil Removal from Water.- 6. Variation of Fracture Features with Storage Aging of Carbon Black Filled Natural Rubber/Butadiene Rubber Composites.- 7. Synthesis of Hydrogel Beads of Poly (vinyl alcohol)-sodium Alginate-chitosan-activated Carbon-FeO for Methylene Blue Removal from Water.- 8. Fracture and Fatigue Behavior of Indentation Prefabricated Crack in Monocrystal Silicon.