Loading...

On the comparison of microstructural characteristics and mechanical properties of high-vanadium austenitic manganese steels with the Hadfield steel

Moghaddam, E. G ; Sharif University of Technology

1306 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.msea.2011.10.089
  3. Abstract:
  4. In this study, high-vanadium austenitic manganese steel (HV-AMS) alloys and the standard Hadfield steel were investigated. The microstructure of these high-vanadium alloyed Hadfield steels was studied thoroughly using optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffraction (XRD) and was compared to the Hadfield steel. The hardness and unnotched Charpy impact strength of HV-AMS alloys and Hadfield steel were examined at ambient temperature in the as-cast and heat-treated conditions. A pin-on-disk wear test at linear speed of 10. m/min and a 55. N normal load was employed to evaluate the wear behavior of both steel samples. Microstructural results showed that varying the carbon content in HV-AMS alloys can affect the vanadium carbide morphology and its distribution in the austenite matrix which leads to considerable changes of the mechanical properties. Abrasion test revealed that HV-AMS alloys have superior wear resistance, about 5 times of the standard Hadfield steel
  5. Keywords:
  6. Abrasion tests ; As-cast ; Austenite matrix ; Austenitic manganese steels ; Carbon content ; Hadfield steel ; High-vanadium austenitic manganese steel ; Linear speed ; Micro-structural ; Microstructural characteristics ; Normal loads ; Pin-on-disk wear test ; Steel samples ; Vanadium carbides ; Wear behaviors ; Alloys ; Austenite ; Carbides ; Impact strength ; Manganese ; Mechanical properties ; Microstructure ; Optical microscopy ; Scanning electron microscopy ; Steel ; Vanadium ; X ray diffraction ; Wear resistance
  7. Source: Materials Science and Engineering A ; Volume 532 , 2012 , Pages 260-266 ; 09215093 (ISSN)
  8. URL: http://www.sciencedirect.com/science/article/pii/S0921509311011919