USING THE PRINCIPLES OF IMAGE ANALYSIS IN THE ASSESSMENT OF THE PROPORTION OF RETAINED AUSTENITE IN THE CASE HARDENED LAYERS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A10237758" target="_blank" >RIV/61989100:27360/17:10237758 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.imim.pl/files/archiwum/Vol2A_2017/17.pdf" target="_blank" >http://www.imim.pl/files/archiwum/Vol2A_2017/17.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/amm-2017-0085" target="_blank" >10.1515/amm-2017-0085</a>

Jazyk výsledku

angličtina

Název v původním jazyce

USING THE PRINCIPLES OF IMAGE ANALYSIS IN THE ASSESSMENT OF THE PROPORTION OF RETAINED AUSTENITE IN THE CASE HARDENED LAYERS

Popis výsledku v původním jazyce

Structures of carburized layers after the surface saturation process in gaseous, liquid or solid medium and after subsequent heat treatment (hardening and low-temperature tempering) consist mainly of high carbon plate martensite with a certain portion of retained austenite. The presence of retained austenite (RA) in carburized layers is mostly considered as undesirable because it decreases hardness of the hardened layer and furthermore, a spontaneous conversion to a ferritic-carbide mixture of a bainitic type, accompanied by a change of properties, dimensional instability and the local increase in internal stress with the possible formation of cracks, can occur. The proportion of retained austenite is, therefore, a significant characteristics of the quality of hardened layers. This work deals with the evaluation of the volume fraction of retained austenite in carburized layers using image analysis on metallographic images.

Název v anglickém jazyce

USING THE PRINCIPLES OF IMAGE ANALYSIS IN THE ASSESSMENT OF THE PROPORTION OF RETAINED AUSTENITE IN THE CASE HARDENED LAYERS

Popis výsledku anglicky

Structures of carburized layers after the surface saturation process in gaseous, liquid or solid medium and after subsequent heat treatment (hardening and low-temperature tempering) consist mainly of high carbon plate martensite with a certain portion of retained austenite. The presence of retained austenite (RA) in carburized layers is mostly considered as undesirable because it decreases hardness of the hardened layer and furthermore, a spontaneous conversion to a ferritic-carbide mixture of a bainitic type, accompanied by a change of properties, dimensional instability and the local increase in internal stress with the possible formation of cracks, can occur. The proportion of retained austenite is, therefore, a significant characteristics of the quality of hardened layers. This work deals with the evaluation of the volume fraction of retained austenite in carburized layers using image analysis on metallographic images.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LO1203" target="_blank" >LO1203: Regionální materiálově technologické výzkumné centrum - Program udržitelnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Archives of Metallurgy and Materials

ISSN

1733-3490

e-ISSN

—

Svazek periodika

62

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

4

Strana od-do

577-580

Kód UT WoS článku

000406180900017

EID výsledku v databázi Scopus

2-s2.0-85026780040