Physical Materials Science: The IX International School with Elements of a Scientific School for Youth . Actual problems of strength: LXI International Conference”, prepared by the team of authors under the guidance of the responsible editor D. L. Merson represents a unique and comprehensive source of knowledge for those seeking to deepen their knowledge in materials science and material mechanics. This publication is not just a collection of scientific articles, but a real window into modern achievements and current challenges faced by engineers, researchers and students interested in studying the physical properties of materials and their behavior under stress. This book covers a wide range of topics related to physical materials science, ranging from fundamental principles to practical aspects of assessing the strength and durability of materials. It deals in detail with structural changes, fracture mechanics, test methods and modeling of materials behavior in extreme conditions. Particular attention is paid to new approaches to the analysis and prediction of strength characteristics, which makes this publication especially valuable for those who are engaged in the development of new materials, engineering solutions and technologies. The book "Physical Materials Science" is intended for a wide audience - from students of technical universities and young scientists to experienced engineers and specialists in the field of materials science. Its content is interesting to those who are looking for up-to-date information about modern methods of materials research, about new trends in the field of strength and reliability of structural elements. It will be especially useful for those involved in the design and operation of complex technical systems, where safety and durability play a key role. The author’s team, including leading experts in the field of physical materials science and mechanics, created a work that combines theoretical foundations and practical recommendations. The presentation style is distinguished by clarity and logical consistency, which facilitates the perception of even complex concepts. A special place is occupied by the analysis of modern problems, such as the influence of microstructural changes on mechanical properties, methods of increasing the strength and stability of materials, as well as innovative approaches to modeling their behavior. This edition is the result of the IX International School with elements of a scientific school for young people, which emphasizes its focus on the development of young specialists and stimulating their interest in scientific activities. Within the framework of the conference, topical problems related to the strength of materials are discussed, which makes the book not only a collection of scientific articles, but also a platform for the exchange of experience, ideas and new research. It raises issues of importance to modern engineering, the construction industry, energy and other industries where the safety and reliability of materials are paramount. Special attention is paid to new experimental methods, modeling and computer technologies that allow predicting the behavior of materials in difficult operating conditions. This makes the book a valuable tool for those who want to be aware of the latest scientific advances and practical solutions in the field of strength and materials science. Thanks to the rich illustrative material and relevant examples, the book helps the reader not only to understand complex concepts, but also to apply the knowledge gained in practice. If you are a student, young scientist or engineer looking for modern and authoritative literature on physical materials science and strength, “Physical Materials Science: IX International School with elements of a scientific school for youth” will become an indispensable assistant for you. This book is not just a textbook, but a source of inspiration and new ideas that can stimulate career development and scientific research. Its content, saturated with current problems and innovative approaches, makes it a worthy addition to any library of specialists seeking professional growth and improvement of their knowledge in the field of materials science.