Course detail

Practical Metallography

FSI-0PMAcad. year: 2019/2020

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.

Learning outcomes of the course unit

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.

Co-requisites

Not applicable.

Recommended optional programme components

Not applicable.

Recommended or required reading

Not applicable.

Planned learning activities and teaching methods

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.

Language of instruction

Czech

Work placements

Not applicable.

Aims

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.

Classification of course in study plans

  • Programme B3A-P Bachelor's

    branch B-FIN , 3. year of study, winter semester, 2 credits, optional (voluntary)

  • Programme B3S-P Bachelor's

    branch B-STI , 3. year of study, winter semester, 2 credits, optional (voluntary)

Type of course unit

 

Lecture

13 hours, optionally

Teacher / Lecturer

Syllabus

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.

labs and studios

26 hours, optionally

Teacher / Lecturer

Syllabus

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).

eLearning