This book consists of papers presented during the 6th International Conference on Metallurgy Technology and Materials (ICMTM2018) which was held on 30-31 May 2018 in Xi'an, China. This collection contains the research results in the area of the structural materials, metallurgical technologies, polymers and modern composites, functional ceramics, technologies of coatings and surface engineering, nanomaterials for the various applications, chemical technologies in the ore processing and bio-production, building materials. We hope that this volume will be useful and interesting for the wide range of academics, engineers and students.