Selected, peer reviewed papers from the 2012 International Conference on Advances in Materials and Manufacturing Processes (ICAMMP 2012), December 22–23, 2012, Beihai, China. The 508 papers are grouped as follows: Chapter 1: Composites; Chapter 2: Micro/Nano Materials and Ceramic; Chapter 3: Polymers and Biomaterials; Chapter 4: Optical/Electronic/Magnetic Materials; Chapter 5: Chemical Materials and Technologies; Chapter 6: Energy Materials; Chapter 7: Iron and Steel; Chapter 8: Metal Alloy Materials; Chapter 9: Materials for Building and Structures; Chapter 10: Mechanics of Materials; Chapter 11: Environmental. Research, Friendly Materials and Recycling Waste Technologies; Chapter 12: Surface Engineering/Coatings; Chapter 13: Materials Forming; Chapter 14: Materials Machining; Chapter 15: Welding & Joining; Chapter 16: Laser Processing; Chapter 17: Casting and Solidification; Chapter 18: Geology and Mineral Processing.