Theory: 50 %

Practice: 50 %

Recommended semester: 1

Study mode: full-time

Prerequisites:

Evaluation type: term mark

Course category:

Language: english

Responsible instructor: Dr. Farkas Attila Ferenc

Instructor(s): Kis Dávid István, Johanyák Edit, - nincs

Course objectives:
The aim of the Materials Engineering course is for mechanical engineering students to understand the internal structure and characteristic properties of materials, laying the groundwork for the knowledge necessary for related material production and processing technologies.

Course content - lectures:

Classification of materials. Relationship between internal structure, characteristic properties, and application areas. The main physical and mechanical properties of metals. Tensile testing. Hardness measurements. Charpy impact testing. Basic concepts of materials science. Miller indices, direction and plane Miller indices. Characterization of cubic lattices (relationship between lattice parameter and atomic radius, coordination number, atomic number, planar and spatial density). Lattice defects. Characterization of lattice imperfections. Elastic and plastic deformation of crystalline materials. Relationship between dislocations and plastic deformation. Description of diffusion. Concept of alloys. Gibbs' phase rule. Equilibrium cooling, determination of two-component equilibrium phase diagrams, types, and handling rules. Types and characterization of solid solutions and metallic compounds. Eutectic, eutectoid. Calculation of phases and microstructures in two-component equilibrium systems. Characterization of phases and microstructural elements of steels and cast irons in the Fe-C metastable alloy system. Non-equilibrium cooling of steels, modes of austenite transformation, interpretation of the theoretical "TTT" diagrams. Isothermal and continuous cooling "TTT" diagrams of unalloyed steels and their use.

Course content - labs:

Safety education. Laboratory report requirements. Tensile Testing - Laboratory Report. Hardness Testing (Brinell, Vickers, Rockwell) - Laboratory Report Impact Testing - Laboratory Report Crystallographic calculations (Miller indices, plane packing factor, volume packing factor, maximum interstices in the lattice). Solidification of metals. Determination and study of phase diagrams. Study of the Lead-Tin alloy system. Determination of the cooling curves. Fe-C metastable equilibrium alloys and its phases. Fe-C alloys and its microstructures. Microscopic examination of metal's microstructures. Perlitic, bainitic and martensitic transformation mechanisms. TTT diagrams: theory and practice

Acquired competences:
Knowledge:

Comprehensively understands the basic facts, directions, and limits of the technical field. Knows the general and specific mathematical, natural, and social science principles, rules, relationships, and procedures necessary for practicing the technical field. At the applied level, knows the requirements and expectations of work and fire safety, security technology, and occupational health in relation to their field, as well as relevant environmental regulations. Comprehensive understanding of the fundamentals, limits, and requirements of logistical, management, environmental, quality assurance, information technology, legal, and economic areas associated with mechanical engineering.

Skills:

Capable of identifying routine professional problems, uncovering the theoretical and practical background necessary to solve them, formulating and solving them (with the practical application of standard operations). Able to understand and use characteristic literature, computational, and library resources of their field. Capable of directing and controlling technical manufacturing processes while keeping elements of quality assurance and quality control in mind. Able to diagnose mechanical failures, select corrective operations, and solve repair tasks. Capable of applying and enforcing safety, fire safety, and hygiene rules and regulations during work.

Attitude:

In complex or unexpected decision-making situations, makes decisions taking into full account legal regulations and ethical norms. Possesses appropriate perseverance and monotony tolerance for performing practical activities. Open and receptive to new, modern, and innovative procedures and methods related to ecological management and health awareness. Adheres to and enforces relevant safety, health, environmental, quality assurance, and control requirements during work.

Autonomy and responsibilities:

Identifies shortcomings in applied technologies, risks in processes, and initiates measures to reduce them. Keeps track of legal, technical, technological, and administrative changes related to the field. Under the guidance of workplace leaders, directs the work of assigned personnel, supervises the operation of machinery and equipment. Shares experiences with colleagues, thereby assisting in their development. Takes responsibility for technical analyses and proposals formulated based on them.

Additional professional competences:

Requirements, evaluation, grading:
Mid-term study requirements:
During the semester students should attend lectures and perform laboratories. The semester mark is determined from a written exam, should be achieved a minimum of 50%.
Exam requirements:

Generative AI usage:

Not specified

Study aids, laboratory background:

Compulsory readings:

Recommended readings:

1. William D. Callister: Materials Science and Engineering, An Introduction. 7th Ed., John Wiley, 2007. ISBN10:0-471-73696-1 2. Nestor Perez: Materials Science: Theory and Engineering, Springer, 2024, ISBN978-3-031-57151-0