Persons at STU
This page displays all publicly accessible information about the desired person. Some information about the person's occupation and offices may be hidden.
Basic information about a final thesisAdditional informationAdditional information about the final thesis follows. Click on the language link to display the information in the desired language.
|Language of final thesis:||Slovak|
|Title of the thesis:||Study of heat treatment influence to the structure and properties of high speed steel type STN 41 9830 for cast cutting tools|
|Summary:||BOHÁČIK, Michal: Study of heat treatment influence to the structure and properties of high speed steel type STN 41 9830 for cast cutting tools. [Dissertation Thessis]- Slovak university of technology in Bratislava. Faculty of materials science and technology in Trnava; Institute of production technology. Supervisor: professor Ing. Alexander Čaus, DrSc.- Trnava, Mtf STU, 2011. The aim of this PhD. thesis is improvment of microstructure and properties of selected STN 41 9830 high sped steels (HSS) by optimalization of heat treatment methods or changing of austenitization temperatures. The theoretical part of PhD. thesis consists from two chapters, which describe chemical and phase composition, structure and properties of HSS, and also methods of heat treatment of cutting tools from HSS as hardening, annealing and tempering in detail. The first part of experimental deals with metallographic, RTG phase and EDX analysis of solidification mikrostructure of basic and inoculated STN 41 9830 HSS for cast cutting tools. The second part of experimental describes the study of austenitization temperature (1180, 1200, 1220, 1240 and 1260 °C) influence on character of mikrostructural changes of tempered STN 41 9830 cast basic and inoculated steels and wrought steels. The third part of experimental consists from study of austenitization temperature influence on mechanical properties of selected heat treated HSS. Thesis contains: Pages: 170 Figures: 88 Tables: 18 Appendices: 1 References: 124|
|Key words:||High sped steel, heat treatment, carbide, microstrusture, austenitizing|
Display and download files
|Current level of public release|
|access to digital copies of seminar papers and theses on-line via Internet with no restrictions, incl. the right to provide sub-lincence to a third person for study, scientific, educational and information purposes.|
To display the final thesis assignment form click on the Display the final thesis assignment form icon. The following icons - Final thesis, Thesis appendices, Supervisor's review, Opponent's review - relate to the final thesis and can be downloaded. They could be displayed on condition they have been inserted and are available publicly.Parts of thesis with postponed release:
|–||Reviews for final thesis unlimited|