Nature of phases in boronized H11 hot work tool steel

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F12%3A00239389" target="_blank" >RIV/68407700:21220/12:00239389 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4149/km_2012_3_177" target="_blank" >http://dx.doi.org/10.4149/km_2012_3_177</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4149/km_2012_3_177" target="_blank" >10.4149/km_2012_3_177</a>

Result language
angličtina
Original language name
Nature of phases in boronized H11 hot work tool steel
Original language description
The H11 hot work tool steel was short-time boronized, austenitized, quenched and tempered to a standard core hardness of 47-48 HRC. Microstructure, phase constitution and microhardness of boronized layers were investigated. It was found that the boronizing begins with the formation of α-solid solution, enriched with boron, and continues with the development of firstly the Fe2B-boride compound and finally with the FeB-phase. During the boronizing, carbon atoms are transported from the surface towards the parent material. They are accumulated in a narrow intermediate region beneath the borides, where they develop new carbides. These carbides were identified as M 23C 6. Their portion probably increases with prolonged boronizing time, which is reflected in higher hardness of intermediate region. Also the hardness of boron compounds was found to be increased slightly with longer processing time
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
JG - Metallurgy, metal materials
OECD FORD branch
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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