The textbook "Material Science in Mechanical Engineering" offers a comprehensive introduction to materials science in the field of mechanical engineering. It is aimed at students and professionals who wish to develop a deeper understanding of the structure and properties of engineering materials. The course is designed for one semester and includes 14 thematic sections, covering topics from metal structure and crystallization to special steels and alloys. The innovative presentation format combines typographical elements with a computer-based presentation, enabling learners to efficiently grasp the content. Each unit consists of 25 to 30 slides focused on practical applications and can be learned in two academic hours. The use of unique methods for creating phase diagrams and supporting memory makes this book a valuable tool for Russian-speaking students, doctoral candidates, and engineers.