- Tytuł:
- Using the Principles of Image Analysis in the Assessment of the Proportion of Retained Austenite in the Case Hardened Layers
- Autorzy:
-
Váňová, P.
Sojka, J.
Kulová, T.
Jokešová, K.
Purtátor, P.
Spinu, A. - Powiązania:
- https://bibliotekanauki.pl/articles/355652.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
retained austenite
carburized layers
image analysis - Opis:
- 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.
- Źródło:
-
Archives of Metallurgy and Materials; 2017, 62, 2A; 577-580
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł