RT Journal Article
SR Electronic
A1 Ovsik, Martin
A1 Stanek, Michal
A1 Bednarik, Martin
T1 Heat Treatment of Steel 1.3520: Influence of Temperature and Austenitization Time
JF Manufacturing Technology Journal
YR 2024
VO 24
IS 1
SP 110
OP 116
DO 10.21062/mft.2024.017
UL https://journalmt.com/artkey/mft-202401-0015.php
AB This study deals with influence of temperature and time of austenitization on final mechanical proper-ties, especially hardness, obtained after heat treatment of steel 1.3520. Following process parameters of heat treatment were varied: time of austenitization and type of cooling medium, which has a significant effect on final structure, thus mechanical properties. These parameters were varied according to reccomended range given in material sheet. As can be seen from results, different temperature and time of austenitization influenced final hardness after quenching and tempering. Lower temperature and shorter time of austenitization led to insufficient homogenization of austenite and incomplete transformation to martensite and bainite, which resulted in lower hardness. On the other hand, higher temperature and longer time of austenitization can lead to coarser austenite grain, which can also result in lower hardness.