Course detail
Theory of Fusion Weldeability of Metals
FSI-9TTSAcad. year: 2020/2021
The course deals with the following topics: Influence of heat – deformation cyklus for a properties of HAZ of welding materials. The mechanism of heat, cold, lamela and annealing cracs rise. Influence of weld metal attenuation and of specific inserted heat. The metallurgical aspects of fusion welding. Stress and deformation. Welding of steels, the methods for determination of preheat temperature tests of weldeability. Weldeability of irons Al, Cu, Ni and its alloys.
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Assesment methods and criteria linked to learning outcomes
Course curriculum
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Aims
Specification of controlled education, way of implementation and compensation for absences
Recommended optional programme components
Prerequisites and corequisites
Basic literature
HRIVŇÁK, Ivan. Teória zvaritel´nosti kovov a zliatin. 1. vyd. Bratislava: Veda 1989. 343 s. ISBN 80-224-0016-5.
KOUKAL,J., D.SCHWARZ a J. HAJDÍK Materiály a jejich svařitelnost. 1. vyd. Ostrava: Český svářečský ústav s.r.o. Ostrava, VŠB-Technická univerzita Ostrava. 2009. 241 s. ISBN 978-80-248-2025-5.
Recommended reading
Classification of course in study plans
- Programme D-STG-P Doctoral 1 year of study, winter semester, recommended course
Type of course unit
Lecture
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Syllabus
2. Metallurgical aspects of fuse welding. Reaction of liquid metal with gases.
3. Crystallization and defects of liquid metal. Heat transfer zone.
4. Weldeability of steels - structure and properties HAZ, degradation of HAZ properties. Influence of components on the weldeability. Carbon equivalent, ARA diagrams, determination of preheat temperature.
5. Weldeability of separate of steel types.
6. Heterogeneous welds. Schaeffler´s diagram.
7. Deformation during the welding. Types of deformation and theirs elimination. Straightening.
8. Weldeability of irons.
9. Weldeability of Al and their alloys
10.Weldeability Cu, Ni and their alloys.