Hardening and coating technologies

Description: The discipline studies: the Problem of increasing the durability of machines and mechanisms and ways to solve it. Working conditions of machine parts and mechanisms. Mechanical methods of surface hardening. Surface heat treatment. Chemical and heat treatment. Protective and strengthening coatings .Classification of coating methods. Surface preparation before coating. Adhesion.

Amount of credits: 6

Пререквизиты:

• Physical Methods of Research

Course Workload:

Component: Component by selection

Cycle: Base disciplines

Goal

• The purpose of the discipline is to form an idea of methods of metal hardening and methods of gas-thermal and ion-plasma application of strengthening coatings.

Objective

• study of modern methods of metal hardening and application of hardening coatings; study of equipment for surface hardening and coating; design of specific technological processes

Learning outcome: knowledge and understanding

• know the mechanism of surface hardening of various materials;

Learning outcome: applying knowledge and understanding

• be able to choose the coating material and surface treatment methods to obtain a surface with the specified characteristics, design technological processes for surface hardening; possess (methods, techniques) methods of comparative evaluation of various technological methods of surface hardening and coating, information about the current level of surface hardening technologies based on the analysis of periodical printing data and Internet technologies.

Learning outcome: formation of judgments

• about traditional methods of surface hardening and coating and modern high-tech methods of surface treatment, the possibilities of modern technologies of surface hardening and their applications;

Learning outcome: communicative abilities

• After studying this discipline, undergraduates acquire knowledge, skills and experience that correspond to the results of the main educational program.

Learning outcome: learning skills or learning abilities

• when studying the discipline, undergraduates should learn how to independently choose the optimal technology for a given part that works in certain environmental conditions, plan the experiment, choose the optimal methods and equipment for experimental research, rationally determine the conditions of experiments, and process the results obtained

Teaching methods

When mastering the discipline, the following combinations of types of educational work with methods and forms of activating the cognitive activity of undergraduates are used to achieve the planned learning outcomes and develop competencies. 1. IT methods 2. Teamwork 3. Case-study 4. Learning from experience 5. Advanced independent work 6. Project method 7. Search method 8. Research method

Topics of lectures

• Mechanical methods of surface hardening of machine parts
• Formation and propagation of dislocations
• Methods of laser, electron beam, plasma and detonation hardening of machine parts
• Methods of detonation and plasma coating
• Technological options for plasma hardening of parts
• Ion deposition of coatings
• Magnetic hardening of machine parts
• Hardening of parts by surfacing
• Chemical and heat treatment
• Simultaneous saturation of the steel surface with nitrogen and carbon
• Laser heat treatment
• Technological methods for improving the wear resistance of parts
• Classification of methods of finishing and strengthening processing of machine parts
• Nanotechnology

Key reading

• 1. Технология конструкционных материалов. /Под ред. Даль-ского А.М. 2005. 2. Слосман А.И., Зенин Б.С. Современные технологии по-верхностного упрочнения и нанесения покрытий: Учебное пособие.-Томск: Изд. ТПУ, 2002.- 118 с. 3. Гаркунов Д.Н. Триботехника. 1989. 4 Порошковая металлургия и напыленные покрытия. / Под ред. Митина Б.С. 1987. 5. Кудинов В.В., Бобров Г.В. Нанесение покрытий напылением. Теория, технология и оборудование. 1992.

Further reading

• 7. Лахтин Ю.М., Леонтьева В.П. Материаловедение. 1990. 8. Колесников К.С. Технологические основы обеспечения качества машин. 1990. 9. Сулима А.М. Поверхностный слой и эксплуатационные свойства деталей машин. 1988. 10. Васильев В.В. Композиционные материалы: Справочник. 1990.