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Fatigue of sintered steels (Fe - 1.5 Mo - 3 Mn - 0.7 C)

Khorsand, H ; Sharif University of Technology | 2004

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  1. Type of Document: Article
  2. DOI: 10.1617/13967
  3. Publisher: RILEM Publications , 2004
  4. Abstract:
  5. The powder metallurgy process is ideally suited to the mass production of structural parts of complicated shape and with tight tolerances without appreciable loss of material. Because of its unique attributes such as reducing weight and production cost, powder metallurgy has made very significant in roads as a substitution technology in automotive parts, such as cams and gears in this process, we can improve the mechanical properties such as fatigue resistance of PM materials by changing of manufacturing parameters, for example, density, sintering temperature, sintering time, etc. In this research, the fatigue behaviour of sintered steel (Fe - 1.5 Mo - 3 Mn - 0.7 C) was investigated with varying of density and sintering temperature. The results showed that in this steel, increase of porosity plays an important role in the fatigue limit of specimens also with sintering at high temperature which results in more spherical pores, the fatigue strength was improved. In this research, SEM fractography was also used to determine the mechanism of fatigue fracture
  6. Keywords:
  8. Source: Materials and Structures/Materiaux et Constructions ; Volume 37, Issue 269 , 2004 , Pages 335-341 ; 13595997 (ISSN)
  9. URL: https://link.springer.com/article/10.1007/BF02481680