| Autor: |
DARVISHI, Alireza, DANESHMAYEH, Aria, SALEHI, Alihosein, AHMADI, Mahdi |
| Předmět: |
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| Zdroj: |
Acta Technica Corviniensis - Bulletin of Engineering; Jan-Mar2022, Vol. 15 Issue 1, p13-16, 4p |
| Abstrakt: |
In this study, the effect of double austenitization (DA) and single austenitization (SA) on the microstructure and hardness of FMU-11 steel, which is used to make the cement mill, was investigated. To obtained maximum hardness; FMU-11 steels are used in a quenched and tempered condition. This involves heating the material to the austenitizing temperature (850-1100°C), quenching at a suitable rate to form martensite, and tempering to increase the toughness and reduce the retained austenite content. In this investigation, four samples as SA and four other samples as DA was heat-treated at 900, 950, 1000, and 1050 °C, respectively. The microstructure of the samples was studied using an optical microscope and then scanning electron microscopy (SEM) was applied for higher magnification studies. The hardness measuring for the samples heat-treated in different cycles. The results showed that the DA compared to SA heat treatment will reduce the size of the carbides but will increase retained austenite. However, the hardness decreases as the quenching temperature is increased from 900 to 1050 °C [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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