Effects of Austempering and Martempering Processes on Amount of Retained Austenite in Cr-Mo Steels (FMU-226) Used in Mill Liner
钢铁研究学报(英文版)
 
             Home | About Journal | Editorial Board | Instruction for Authors | Subscriptions | Advertisement | Contacts Us | Chinese
JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL  2010, Vol. 17 Issue (2): 53-53    DOI:
材料 Current Issue | Next Issue | Archive | Adv Search Previous Articles  |  Next Articles  
Effects of Austempering and Martempering Processes on Amount of Retained Austenite in Cr-Mo Steels (FMU-226) Used in Mill Liner
M.H. Shaeri
 Download: PDF (0 KB)   HTML (0 KB)   Export: BibTeX | EndNote (RIS)      Supporting Info
Abstract The presence of retained austenite gives rise to deterioration of the wear resistance and fracture strength of Cr-Mo steels in many cases. In this research, the effects of different heat treatments including direct quenching, martempering and austempering on the retained austenite present in the microstructure of these steels have been investigated. Samples were austenized at 950 oC followed by direct quenching using compressed and still air. The samples were also isothermally quenched in the salt bath at 200 and 300 oC for 2, 8, 30, and 120 minutes. Microstructures of the specimens were studied using optical microscope (traditional black and white etching as well as color etching), scanning electron microscope (SEM), microhardness tester, and X- ray diffraction (XRD). Results showed that the lowest amount of retained austenite in the microstructure was obtained in the specimens quenched isothermally at 300oC for 120 minutes.
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
M.H. Shaeri
Key wordsCr-Mo Steels   Austempering   Martempering   Retained Austenite   Microstructure     
Received: 2008-10-24;
 
No references of article
Copyright © JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 
Supported by: Beijing Magtech