Subscribe to the EPMA Mailing List

High Strength Sintered Steels Fabrication By In-situ Solid Solution Strengthening And Grain Growth During Sintering Prevention

  • : Radu Liviu Orban1, Magdalena Orban1, Luiza Dihoru2, Niculina Sechel1
  • : 1Technical University of Cluj-Napoca Romania, 2Bristol University
  • : PDF Download
  • : 2016

Abstract

Due to the known Powder Metallurgy advantages of sintered structural steel parts fabrication, intensive researches are performed to overcome its known limitations concerning realizable mechanical properties. Both solid solution dispersion strengthening and crystal grain refining are known methods of mechanical properties of alloys enhancing. They are successfully applied to HSLA wrought steels elaboration by microalloying with interstitial carbide/nitide/carbonitride forming elements (Nb, V, Ti). Unfortunately, this method was not extended yet to sintered steels, probably due to difficulties to prevent oxidation of microalloying elements - with high affinity for oxygen, and also to assure their good homogenization with the iron base powder at the required small proportions. Only few information are published on this matter. This paper presents a synthesis of results obtained by authors concerning possibilities of Nb, V and Ti carbides/nitrides formation in the Fe matrix at sintering, of their oxidation prevention and good homogenization to overcome the above mentioned difficulties, appropriate technological routes being proposed.

€25.00

Non-EPMA member price shown. If you are an EPMA member please log in for your discount.
If you are logged in as a member but are still seeing this message, please contact us at website@epma.com.
If you would like to find out about becoming an EPMA member, click here.
This product is currently only available to purchase via this website to companies with a valid EU VAT Number. If you are an individual or company without an EU VAT number wishing to purchase this, please contact EPMA directly at publications@epma.com. Alternatively, past Euro PM papers are available via ProQuest and Elsevier.
*
* This field is required

Other publications you may be interested in:

Go To Top