THE INFLUENCE OF Cr, Mn AND Mo ELEMENTS ON CRACKS OCCURENCE

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F10%3A86077674" target="_blank" >RIV/61989100:27350/10:86077674 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
THE INFLUENCE OF Cr, Mn AND Mo ELEMENTS ON CRACKS OCCURENCE
Original language description
The low - alloyed Cr-Mo based steels are very sensitive to internal crack occurence especially in cases when they are hot rolled from round continuously cast blooms. The scope of the paper is therefore dedicated to the study of microscopic crack mechanism of 25CrMo4 steel variant. We have demonstrated that the crack presence after hot rolling strongly depends on the microstructure composition as well as on the segregation of chromium, manganese and molybdenum content. The main conclusions are supportedby the metallographic analysis that was performed on the surface and in the center of the investigated billet and also the microchemical line analysis carried out with the energy - dispersive X - ray spectroscopy (EDX) to precisely determine the internalsegregation behavior of above mentioned elements. Moreover we have also utilised the microhardness determination of Cr-Mo steels.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JL - Fatigue and fracture mechanics
OECD FORD branch
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Project
<a href="/en/project/ED0040%2F01%2F01" target="_blank" >ED0040/01/01: Regional materials science and technology centre</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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