14DMI19 - Weldability and safety of weldments

Course specification
Course titleWeldability and safety of weldments
Study programme
Lecturer (for classes)
Lecturer/Associate (for practice)
Lecturer/Associate (for OTC)
    Condition-Облик условљености
    The goalUnderstanding the ability of material to form weld joint with required properties is based on susceptibility to formation of cracks, resistivity to transition and preseto brittle behaviour and ина, отпорности споја ка прелазу у крто стање и оцене сигурности завареног споја са присутном прскотино
    The outcomeStudent will be trained to properly estimate the susceptibility for crack initiation and therefore, abilitity of material to be welded without defects.
    Contents of lecturesConcept of presence of defects in weld joints. Basic groups of cracks. HOT cracks. Solidification and liquation types. Role of impurities. COLD cracks. Role of hidrogen, martensite and residual stresses. LAMELLAR tearring. Role of inclusions. Post welding heat treatment cracks. Influence of welding parameters on cracking. Specific tests designed for determination of different crack susceptibilities. Measures of prevention.
    Contents of exercisesCase studies on weldability of different steels, irons, aluminium alloys and titanium alloys.
    1. I.Hrivnjak, Zavarljivost čelika, Gradjevinska knjiga, Beograd (1982)
    2. A.Radović, Interni materijal, TMF Beograd (1995)
    3. R.D Stout at all, Weldability of Steels, 4th edition, Welding Research Council, New York, USA 1987
    4. Documents and Standards, International Institute of Welding 1995-2006
    Number of hours per week during the semester/trimester/year
    LecturesExercisesOTCStudy and ResearchOther classes
    Methods of teachingLectures, problems and laboratory
    Knowledge score (maximum points 100)
    Pre obligationsPointsFinal examPoints
    Activites during lecturesTest paper
    Practical lessonsOral examination60