publication . Article . 2010

The changes of ADI structure during high temperature annealing

A. Krzyńska; M. Kaczorowski;
Open Access English
  • Published: 01 Jan 2010 Journal: Archives of Foundry Engineering (issn: 1897-3310, Copyright policy)
  • Publisher: Sciendo
Abstract
The results of structure investigations of ADI during it was annealing at elevated temperature are presented. Ductile iron austempered at temperature 325oC was then isothermally annealed 360 minutes at temperature 400, 450, 500 and 550oC. The structure investigations showed that annealing at these temperatures caused substantial structure changes and thus essential hardness decrease, which is most useful property of ADI from point of view its practical application. Degradation advance of the structure depends mainly on annealing temperature, less on the time of the heat treatment. It was concluded that high temperature annealing caused precipitation of Fe3C type...
Subjects
free text keywords: ADI, structure, mechanical properties, Materials of engineering and construction. Mechanics of materials, TA401-492
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