The aim of this course is for students to become competent in the area of mechanical materials, materials science and engineering, engineering materials, mechanical properties crystal structure, and phase diagrmas, welding of materials and computer modeling of materials

After fulfilling all the course requirements, as prescribed by the course plan, the student is capable of applying the acquired knowledge to: • Understands the importance of materials, their selection, and application. • Determine the characteristic of mechanical and other properties when choosing a material. • Identify potential causes of certain types of materials damage. • Considers the problem of welding materials. • Recognizes differences in the crystal structure of materials and their properties. • Gains basic information on computer modeling of materials.

1. Introduction. Basic features of matter and materials. Engineering materials. Basic types of materials: metals, ceramics, and glass, polymers, composites, advanced materials. From structure (micro and macro levels) to properties. Properties of materials: chemical, physical, mechanical. Production of materials. Basic principles of material selection. Types of bonds: metallic, ionic, covalent. Van de Walls. Crystal and amorphous structures. Allotropy. Melting temperature. Softening. Crystal structure.Types of the crystal lattice. 2. Тhe basic mechanical properties of engineering materials and of their behavior under uniformly increasing static load under tension and pressure: strength and deformation properties and the importance of knowing their impact. Stress deformation under tension and compression. Flow stress. Tensile strength, compression strength, deformation characteristics. Elastic modulus.Mechanical properties of materials, hardness, impact strength, toughness. Creep, creep provoked fracture. Alternating stresses, types, amplitude stress, fatigue stress. Material behavior under alternating stresses, the fatigue of material, fatigue fracture. 3. Predicting the solid-state reaction between two chemical elements based on their atomic sizes. Basic element, alloying element. Phase diagrams of alloys with complete solid-state solubility, partial solubility, no solubility. Metastable and stable phase diagrams of Fe - C. Heat treatment of steel. 4. Introduction to welding. Electric arc. Arc welding. shielded metal arc welding (SMAW/MAG), gas tungsten arc welding (GTAW/TIG), submerged arc welding. Oxyfuel welding and cutting. Resistance welding. 5. Introduction. Contemporary computational modeling of materials. Multiscale modeling, Materials engineering, and materials science. Basics: macro, micro, and nano-atomistic modeling and behavior of materials. From structure (micro and macro levels) to properties.

1. Laboratorc Exercise, Mechanical testing of materials 2. Laboratory Exercise, Metastable and stable phase diagrams of Fe - C and heat treatment of steel 3. Laboratory Exercise, Welding 4. Consultation

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Mandatory resources 1. Engineering Materials 1, R.P. Cvetkovic, O. Popovic, University of Belgrade, Mechanical Faculty, Belgrade, 2022, ISBN: 978-86-6060-111-9 2. Engineering Materials 2, Radica Prokić Cvetković, Olivera Popović, Gordana Bakić, Miloš Đukić, University of Belgrade, Faculty of Mechanical Engineering, Belgrade, 2021, ISBN: 978-86-6060-087-7 3. Welding Procedures, O. Popović, R.P. Cvetković, University of Belgrade, Faculty of Mechanical Engineering, Belgrade, 2016, ISBN: 978-86-7083-909-0

Total assigned hours: 60

New material: 25
Elaboration and examples (recapitulation): 0

Auditory exercises: 20
Laboratory exercises: 0
Calculation tasks: 0
Seminar paper: 0
Project: 0
Consultations: 0
Discussion/workshop: 0
Research study work: 0

Review and grading of calculation tasks: 0
Review and grading of lab reports: 2
Review and grading of seminar papers: 2
Review and grading of the project: 0
Test: 3
Test: 3
Final exam: 5

Activity during lectures: 5
Test/test: 25
Laboratory practice: 10
Calculation tasks: 0
Seminar paper: 5
Project: 0
Final exam: 55
Requirement for taking the exam (required number of points): 15

Engineering Materials 1, R.P. Cvetkovic, О. Popovic, University of Belgrade, Faculty of Mechanical Engineering, Belgrade, 2012, ISBN: 978-86-6060-111-9; Engineering Materials 2, Radica Prokić Cvetković, Olivera Popović, Gordana Bakić, Miloš Đukić, University of Belgrade, Faculty of Mechanical Engineering, Belgrade, 2021, ISBN: 978-86-6060-087-7; Welding Procedures, O. Popovic, R.P. Cvetković, University of Belgrade, Faculty of Mechanical Engineering, Belgrade, 2016, ISBN: 978-86-7083-909-0