The modification of Surface of Barrels by Gas Nitriding

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F23%3A00537203" target="_blank" >RIV/60162694:G43__/23:00537203 - isvavai.cz</a>
Result on the web
<a href="http://journalmt.com/artkey/mft-202006-0016_the-modification-of-surface-of-barrels-by-gas-nitriding.php" target="_blank" >http://journalmt.com/artkey/mft-202006-0016_the-modification-of-surface-of-barrels-by-gas-nitriding.php</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.21062/mft.2020.118" target="_blank" >10.21062/mft.2020.118</a>

Result language
angličtina
Original language name
The modification of Surface of Barrels by Gas Nitriding
Original language description
The article deals with a chemical composition of saturated layers. Experiments are focused on using of gas nitriding processes for surface treatment due to increasing of surface hardness with low influence on the dimensional accuracy. Gas nitriding processes were applied to steels 42CrMo4 and 32CrMoV12-10 used for weapon manufacturing, which were subsequently evaluated by electron microscopy due to documentation of surface morphology; GDOES and microhardness methods due to check of the fundamental mechanical prop-erties significant for requiring function of barrel [1, 2]. The measurements of depth of diffusion layer were performed by destructive and non-destructive methods. The measurements showed the influences of chemi-cal composition of alloying elements in core of material after chemical-heat treatment process on depth of diffusion and influence of technology on development of porosity. Nevertheless, the main task was the de-scription of the porosity development in compound layer after gas nitriding and the increasing of surface hardness and the depth of diffusion layer according to chemical composition. Nitriding process was applied for increasing of surface hardness of material in depth and improving of mechanical properties. Mechanical properties of tested material were significantly increased.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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