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Fatigue properties of machinable austempered ductile iron

Tadayon Saidi, M ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. Publisher: TANGER spol. s r.o , 2007
  3. Abstract:
  4. MADI is new engineering material with very desirable properties such as higher strength at the same hardness compared to regular ductile iron, significantly better fatigue performance than regular ductile iron or austempered ductile iron, better machinability than regular austempered ductile iron and similar to as cast ductile iron. In this study,fatigue properties of Machinable Austempering Ductile was investigated using rotary -bend fatigue testing device. Chemical composition of sample was selected on the base of previous work which results in good mechanical properties and low hardness after austempering process. The results of this study,indicates that for an austempered ductile iron with 753 (N/mm2) Ultimate Tensile Strength,541 (N/mm2) Yield Strength with 14% elongation and hardness of 240 (BHN),fatigue limit is the range of 367 Mpa. © METAL 2007
  5. Keywords:
  6. Cast iron ; Ductility ; Fatigue testing ; Hardness ; Metallurgy ; Metals ; Tensile strength ; Austempered ductile irons ; Austempering process ; Chemical compositions ; Engineering materials ; Fatigue Limit ; Fatigue performance ; Fatigue properties ; Ultimate tensile strength ; Fatigue of materials
  7. Source: 16th International Metallurgical and Materials Conference, METAL 2007, 22 May 2007 through 24 May 2007 ; 2007
  8. URL: http://metal2014.tanger.cz/files/proceedings/metal_07/Lists/Papers/030.pdf