التفاصيل البيبلوغرافية
| العنوان: |
Segregace při tuhnutí v austeniticko-feritických korozivzdorných ocelích |
| Alternate Title: |
Segregation during solidification in austenitic-ferritic stainless steels |
| المؤلفون: |
Kejha, Richard |
| Thesis Advisors: |
Čech, Jan, Pernica, Vítězslav |
| بيانات النشر: |
Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. |
| سنة النشر: |
2019 |
| المجموعة: |
Czech ETDs |
| مصطلحات موضوعية: |
Segregace, tuhnutí, stainless steels, austeniticko-feritické oceli, solidification, cast, odlitek, austenitic-ferritic steels, Segregation, korozivzdorné oceli |
| الوصف: |
The master thesis deals with processes of segregation in austenitic-ferritic stainless steels. The introductory part consists of characteristics features of austenitic-ferritic steels and theoretical analysis of segregation processes. The second part shows practical measurements of segregation in experimental casting. Macrosegregation was measured on a spectrometric analyzer and simultaneously solved in the simulation program MAGMA. The aim of this thesis is to verify the effect of solidification time and dwell time between liquidus and solidus temperature on the chemical heterogeneity of duplex stainless steel casting of about 500 [mm]. Chemical heterogeneity was solved for selected alloying and accompanying elements such as C, Mo, Ni, Mn, Cr. The microsegregation was not addressed. Comparison of the mechanical properties of cast and heat treated duplex steel was done by tensile testing of samples cut from the center of the casting. |
| Original Identifier: |
oai:invenio.nusl.cz:401533 |
| نوع الوثيقة: |
masterThesis |
| اللغة: |
Czech |
| الاتاحة: |
http://www.nusl.cz/ntk/nusl-401533 |
| Rights: |
info:eu-repo/semantics/restrictedAccess |
| رقم الانضمام: |
edsndl.nusl.cz.oai.invenio.nusl.cz.401533 |
| قاعدة البيانات: |
Networked Digital Library of Theses & Dissertations |