The modification of Surface of Barrels by Gas Nitriding

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

The modification of Surface of Barrels by Gas Nitriding

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

The modification of Surface of Barrels by Gas Nitriding

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Manufacturing technology

ISSN

1213-2489

e-ISSN

2787-9402

Svazek periodika

20

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

802-808

Kód UT WoS článku

000859946100014

EID výsledku v databázi Scopus

2-s2.0-85126641765