Urgent Problems of Material Science and Joining Technology

Description: This discipline allows you to acquire basic scientific and practical knowledge necessary to solve problems related to materials science. The discipline covers a wide range of materials from metals and polymers to composites and nanomaterials. The discipline is aimed at specialists who are able to solve complex problems in the field of materials science and apply advanced technologies to develop new materials and compounds. This course extensively examines the structure and properties of materials, structural steels, steels and alloys with special properties, problems of wear of machine parts and methods to combat it.

Amount of credits: 5

Пререквизиты:

• Physics of Condensed State

Course Workload:

Component: Component by selection

Cycle: Base disciplines

Goal

• Familiarization with the methods of obtaining modern materials, as well as with the main mechanisms of transformations in the solid state, the knowledge of which allows you to obtain materials with predetermined properties. The study of the basic physical laws of the formation of the structure and properties of crystalline materials in the process of their preparation and subsequent processing. The study of phase transformations in solids required for independent scientific research and laboratory practical training within the framework of the curriculum.

Objective

• To reveal the physical nature of the phenomena occurring in materials under the influence of various factors in the conditions of production and operation and their influence on the properties of materials. Establish the relationship between the composition, structure, and properties of materials. To study the theory and practice of thermal, chemical-thermal and other methods of strengthening materials. To study the main types of connecting technologies, groups of modern materials, their properties and applications.

Learning outcome: knowledge and understanding

• Have an understanding of elastic and plastic deformation, the theoretical and real shear strength of crystals, the temporal strength of solids, fatigue and fatigue failure, creep and internal friction of solids. Be able to apply the knowledge gained in their theoretical and practical work, analyze the relationship between structural features and composition with the mechanical strength and ductility of materials before and after destruction.

Learning outcome: applying knowledge and understanding

• Be able to conduct a targeted search for literature in a given direction in domestic and foreign scientific journals, electronic libraries and other Internet sources. Independently analyze the general problems of physical metal science and be able to promote them.

Learning outcome: formation of judgments

• formation of judgments about the technical aspects of the development of various energy systems; application of the fundamental laws of physics, methods of physical research and achievements of materials science in professional activities.

Learning outcome: communicative abilities

• The ability to correctly formulate the main tactical and technical and economic requirements for the studied technical objects and correctly use the existing scientific and technical means of their implementation.

Learning outcome: learning skills or learning abilities

• Master the skills of using traditional and new technological processes, operations, equipment, regulatory and methodological materials for technological preparation of production.

Teaching methods

When giving lectures on this discipline, such a non-imitative method of active learning as a "Problem lecture"is used. Before studying the module, a problem is identified, which will be addressed by all the subsequent material of the module. Multimedia presentations are used during the lecture. When performing practical work, the interactive learning method "Case-method" is used: a task is given to undergraduates to prepare for the work; the purpose of the work and the progress of its implementation are discussed with the teacher; the goal is analyzed from different points of view, hypotheses are put forward, conclusions are drawn, and the results obtained are analyzed. The following innovative control methods are used: intermediate and final testing

Assessment of the student's knowledge

Teacher oversees various tasks related to ongoing assessment and determines students' current performance twice during each academic period. Ratings 1 and 2 are formulated based on the outcomes of this ongoing assessment. The student's learning achievements are assessed using a 100-point scale, and the final grades P1 and P2 are calculated as the average of their ongoing performance evaluations. The teacher evaluates the student's work throughout the academic period in alignment with the assignment submission schedule for the discipline. The assessment system may incorporate a mix of written and oral, group and individual formats.

The evaluating policy of learning outcomes by work type

Evaluation form

The student's final grade in the course is calculated on a 100 point grading scale, it includes:

• 40% of the examination result;
• 60% of current control result.

The final grade is calculated by the formula:

 

Where Midterm 1, Midterm 2are digital equivalents of the grades of Midterm 1 and 2;

E is a digital equivalent of the exam grade.

Final alphabetical grade and its equivalent in points:

The letter grading system for students' academic achievements, corresponding to the numerical equivalent on a four-point scale:

Topics of lectures

• Mechanisms of strengthening of metal materials
• Modern technologies for the production of high-strength and cold-resistant steels of mass production by ensuring the optimal microstructure of rolled products with the maximum implementation of the effects of deformation hardening
• Modern achievements and trends in the development of high-strength steels
• Features of deformation of heavy-duty materials
• Materials for high temperature service
• Materials with special electromagnetic properties
• Production of materials with amorphous and microcrystalline structure
• New structural steels in the automotive industry
• Physical bases of nitrogenous steels: the influence of nitrogen and carbon on the interatomic interaction in iron; near atomic order; thermodynamic stability of solid solutions; hardening mechanisms and mechanical properties
• Metal conductor materials
• The concept of the amorphous state of a solid
• The concept and classification of nanomaterials
• Modern trends in the development of methods of intensive plastic deformation
• Ion implantation
• The purpose of creating coatings and thin films on the surface of the material

Key reading

• 1. Хокинг М., Васантасри В., СидкинП. Металлические и керамические по¬крытия: Получение, свойства и применение: Пер. с англ. - М.: Мир, 2000. -518с. 2. Самсонов Г.В., УманскийЯ.С. Твердые соединения тугоплавких метал¬лов.-М., 1957.-368 с. 3. Белый А.В., Кукареко В.А., Лободаева О.В. и др. - Минск: Физико-технический институт, 1998. - 220 с. 4. Комаров Ф.Ф. Ионная имплантация в металлы. - М.: Металлургия, 1990. -216с. 5. Диденко А.Н., Шаркеев Ю.П., Козлов Э.В., Рябчиков A.M. Эффекты даль¬нодействия в ионно-имплантированных металлических материалах: дис¬локационные структуры, свойства, напряжения, механизмы. - Томск: Изд-во НТЛ, 2004. - 328 с. 6. Huang Н.,WangX, Не J. II Mat. Lett. - 2003. - V. 57. - P. 3431 -3436. 7. Vera E., WolfG.K. II Nucl. Instrum.Phys. Res. B. - 1999. - V. 148. - P. 917-924. 8. Миркин Л.М. Справочник по рентгеноструктурному анализу поликристал¬лов / Под ред. проф. Я.С. Уманского. - М.: ГИФМЛ, 1961. - 863 с. 9. Утевский Л.М. Дифракционная электронная микроскопия в металловедении. - М.: Металлургия, 1973. - 584 с. Дополнительная литература