The volume acquaints readers with the research results on the properties of additively created alloys and special steel, analyses their heat treatment processes, and studies some laser processing technologies from micro hole drilling to laser ablation of nanoparticles. This issue also presents the results of properties research for materials used in photovoltaics, electronics and energy storage devices. The edition will be helpful to specialists in machinery, materials processing technologies, electronics, photovoltaic technologies and energy storage design.