Journal ArticleDOI
Effect of microstructure on properties of ADI and low alloyed ductile iron
A. Refaey,N. Fatahalla +1 more
TLDR
In this article, a detailed analysis of the fracture mode for the three types of ductile iron, which failed under tensile and impact testing, were presented using the SEM and wear properties were determined using pin-on-ring machine, under dry sliding conditions.Abstract:
Microstructure, tensile, impact, hardness, fractography and wear characteristics were investigated for: (1) Austempered ductile iron (ADI); and (2) low alloyed ductile iron. Comparison has been made between the properties of these two types and that of conventional ductile iron. Detailed analysis, of the fracture mode for the 3 types of ductile iron, which failed under tensile and impact testing, were presented using the SEM. The wear properties were determined using pin-on-ring machine, under dry sliding conditions. The variation of mass loss and coefficient of friction with sliding distance, at different loads and speeds were presented and discussed. The wear mechanisms were investigated by means of subsurface observations. Microhardness test was used to study the change in the matrix strength with distance from the worn surface due to plastic deformation.read more
Citations
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Journal ArticleDOI
The effects of austempering temperature and time onto the machinability of austempered ductile iron
TL;DR: In this paper, the machinability of ADI was evaluated by comparing tool life, tool wear rate, cutting forces, and surface finish produced on a job as general criteria.
Journal ArticleDOI
C, Si and Ni as alloying elements to vary carbon equivalent of austenitic ductile cast iron: Microstructure and mechanical properties
TL;DR: In this paper, three groups of austenitic ductile irons were achieved covering a carbon equivalent (CE) range from 3.51% to 5.04% with different degrees owing to the alloying element (C, Si or Ni).
Journal ArticleDOI
Tribological behaviour of shot peened Cu–Ni austempered ductile iron
TL;DR: In this paper, the authors investigated whether shot peening actually increases the sliding wear resistance of austempered ductile iron (ADI) pins and found that shot peened does not improve the wear resistance, which is attributed to the potential advantages resulting from the higher hardness at the surface, stress-induced austenite to martensite transformation and the residual compressive stresses of the shot-peened specimens are counteracted by the induced surface roughness.
Journal ArticleDOI
Tribological behavior of shot peened/austempered AISI 5160 steel
TL;DR: In this paper, the effect of shot peening and bainite morphologies on the wear and friction behavior of AISI 5160 steel specimens was studied by optical microscopy, scanning electron microscopy and X-ray diffraction.
Journal ArticleDOI
Study of wear behaviour of austempered ductile iron
U. Ritha Kumari,P. Prasad Rao +1 more
TL;DR: In this article, an investigation was carried out to examine the influence of austempering temperature on microstructural parameters and the wear behaviour of ductile iron, and the results showed that the wear rate was dependent on the yield strength, austenite content and its carbon content.
References
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Book
Cast Iron: Physical and Engineering Properties
TL;DR: Cast iron: physical and engineering properties as discussed by the authors, Cast iron properties, physical and structural properties, cast iron properties: physical properties, Cast iron: structural properties and properties, etc.
Journal ArticleDOI
Influence of heat treatments on microstructure of austempered ductile iron
TL;DR: In this article, the influence of temperature and time of austempering on a nodular cast iron austenitised for 30 min at 900°C has been investigated using optical and transmission electron microscopy.
Journal ArticleDOI
Fracture Toughness of Unalloyed Austempered Ductile Cast Iron (ADI)
Susil K. Putatunda,Iqbal Singh +1 more
TL;DR: In this paper, the fracture toughness of unalloyed ADI increases with increase in volume fraction of ferrite in the matrix and reaches a peak when the ferrite content of the matrix is around 65%.
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