Practical Metallography (FSI-0PM)

Academic year 2021/2022
Supervisor: Ing. Lenka Klakurková, Ph.D.  
Supervising institute: ÚMVI all courses guaranted by this institute
Teaching language: Czech
Aims of the course unit:
Getting acquainted with the methodology of evaluating real production problems.
Acquiring basic methods of preparation, observation and evaluation of macro and micro structure of metallic and non-metallic materials using modern methods of light and electron microscopy.
Implementation of theoretical knowledge from the field of material sciences into real analysis of causes of damage.
Assessment of real manufacturing problems related to component damage after operational stress, eventually during technology of its production.
Learning outcomes and competences:
Mastering the methodology of assessment of the real problems of practice relating to the material and the quality and technology of its processing.
Prerequisites:
General knowledge and basic knowledge of mathematics, physics and chemistry from secondary school. Knowledge of material science corresponding to the level of subjects BUM, 3SV, etc.
Course contents:
Real manufacturing problems and specific damage (failure) components case studies based on a complex structural and phase material analysis.
Getting acquainted with material analysis related to the use of unsuitable material, microstructure, chemical composition, thermal or chemical-heat treatment or non-optimal technological process of production. The material confusion or the supplier / customer conflicts solution with the specification of the material characteristics.
Confronting acquired knowledge from the field of material sciences with the real needs of technical practice.
The quantity and variety of solved problems and materials is based on more than 20 years of intensive cooperation of the subject's guarantor with industry.
Teaching methods and criteria:
The subject is led by an iterative form of discussion on specific issues and completing the necessary theoretical knowledge necessary for its successful solution.
In case of interest, the preparation of metallographic specimens and microscopic observation, or other additional analytical methods necessary for solving the given problems, are carried out.
Assesment methods and criteria linked to learning outcomes:
Evaluation based on active approach during lectures.
Controlled participation in lessons:
 
Type of course unit:
    Lecture  13 × 1 hrs. optionally                  
    Laboratory exercise  13 × 2 hrs. optionally                  
Course curriculum:
    Lecture Real manufacturing problems and specific damage (failure) components case studies based on a complex structural and phase material analysis.
Getting acquainted with material analysis related to the use of unsuitable material, microstructure, chemical composition, thermal or chemical-heat treatment or non-optimal technological process of production. The material confusion or the supplier / customer conflicts solution with the specification of the material characteristics.
    Laboratory exercise 1. Work safety in a metallographic laboratory. Prediction of mechanical properties on the basis of structure characteristics.
2. Metallographic sampling for metallographic analysis. Selection of a metallographic sample position. Metallographic cut sample orientation, metallographic sample surface. Technological aspects of suitability of the sample selection. Influence of the sampling method on the structure.
3. Grinding, polishing of samples for light microscopy observation. Mechanical polishing, electrolytic polishing, chemical polishing. Laboratory techniques of semi-automatic and automatic preparation of metallographic samples. Etching, colour etching.
4. Structure observation of non-etching samples. Steel purity determination. Baumann printing. Etching samples observation (selection). Macroscopic etching and observation.
5. Replicas preparation. Foils preparation. Samples for scanning electron microscopy.
6. The most frequent types of steels selection and cast iron their structure valuation in terms of standards ČSN.
7. Individual work. Sample preparation and evaluation of the structure (method selection) of the given ferroalloy material.
8. Specific features of copper alloy samples preparation (Cu, Bronze cast and wrought, Brass cast and wrought)
9. Aluminium alloy (cast, wrought, hardenable and non-hardenable) sample preparation.
10. Study of corrosion (outlines). Study of cavitations. Possibilities of studying fatigue processes. Liquation, segregation and study of other non-homogeneities.
11. Bimetal and sandwich composites metallography. Basic aspects of ceramic-metallic materials, SAPs and sintered carbides preparation.
12. Systemization and classification of fractures. Fracture area evaluation methods.
13. Methods of the quantitative evaluation of the structure. Spatial arrangement of structure components (stereo-logical models).
Literature - fundamental:
1. ASM INTERNATIONAL. ASM handbook. Volume 12, Fractography. 2nd ed. Materials Park: ASM International, 1992, xiii, 517 s. : il., čb. fot., tabulky. ISBN 0-87170-018-2.
2. ASM INTERNATIONAL. ASM handbook. Volume 9, Metallography and microstructures. Materials Park, Ohio: ASM International, 2004, xiii, 1184 s. : il., čb. a bar. fot., tabulky, grafy. ISBN 0-87170-706-3.
3. Metals Handbook 10: Failure Analysis and Prevention. Ohio: American Society for Metals-Metals Park, 1975, 604 s.
4. JONES, David R.H. Engineers Materials 3: Materials Failure Analysis. Oxford: Pergamon Press, 1993, 464 s. ISBN 0-08-041905-4.
5. AFRICAN INTERQUADRENNIAL ICF CONFERENCE ON DAMAGE AND FRACTURE MECHANICS AIQ-ICF2008 ALGERIA, Algiers) June 1-5, Taoufik BOUKHAROUBA, Mimoun ELBOUJDAINI a Guy PLUVINAGE. Damage and fracture mechanics: failure analysis of engineering materials and structures. New York]: Springer, 2009, xxv, 611 s. : il. ISBN 978-90-481-2668-2.
6. JONES, D. R. H. Failure analysis case studies II: a sourcebook of case studies selected from the pages of engineering failure analysis 1997-1999. Amsterdam: Pergamon, 2001, ix, 444 s. : il. ISBN 0-08-043959-4.
7. JONES, D. R. H. Failure analysis case studies III: a sourcebook of case studies selected from the pages of engineering failure analysis2000-2002. Amsterdam: Elsevier, 2004, 460 s. : il. ISBN 0-08-044447-4.
The study programmes with the given course:
Programme Study form Branch Spec. Final classification   Course-unit credits     Obligation     Level     Year     Semester  
B-FIN-P full-time study --- no specialisation -- Cr 2 Elective 1 3 W
B-VTE-P full-time study --- no specialisation -- Cr 2 Elective 1 3 W
B3S-P full-time study B-STI Fundamentals of Mechanical Engineering -- Cr 2 Elective 1 3 W