Paper Title:
Improvement of Mechanical Properties of Fe-Cr-Mo-[Cu-Ni]-C Sintered Sintered Steels by Sinter Hardening
  Abstract

The effect of high temperature sintering and high cooling rate on shifting the microstructural composition to the favourably of martensite-bainite structures and thus effective improvement of mechanical properties of sintered steels based on Astaloy CrL powder with an addition of 1 and 2% Cu or 50% Distaloy AB powder and 0.65% C was investigated. All the systems were processed by both sinter-hardening and conventional sintering. The vacuum sintering at high-temperature of 1240 0C and at common temperature of 1180 0C were integrated with high (6 0C/s), medium (3 0C/s) and slow (0.1 0C/s) cooling rates; conventional sintering at 1180 0C with cooling rate of ~0.17 0C/s was carried out in a N2+10%H2 atmosphere. In dependence on chemical composition, the yield and tensile strengths of 890-1150 MPa and 913-1230 MPa respectively and impact energy of 10-15 J were achieved by sinter-hardening. The yield and tensile strengths are approximately double than those resulting from conventional sintering.

  Info
Periodical
Edited by
Ionel Chicinaş and Liviu Brânduşan
Pages
31-38
DOI
10.4028/www.scientific.net/MSF.672.31
Citation
E. Dudrová, M. A. Grande, M. Rosso, M. Kabátová, R. Bidulský, E. Hryha, "Improvement of Mechanical Properties of Fe-Cr-Mo-[Cu-Ni]-C Sintered Sintered Steels by Sinter Hardening", Materials Science Forum, Vol. 672, pp. 31-38, 2011
Online since
January 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: J. Sicre-Artalejo, Mónica Campos, Teodora Marcu, José M. Torralba
Abstract:The efforts to increase the potential PM market [makes necessary to accept new challenges to develop new products. To address this question,...
697
Authors: Maciej Sulowski, Andrzej Cias, Marin Stoytchev, Tchavdar Andreev
Abstract:The effect of chemical composition of the sintering atmosphere on the density, microstructure and mechanical properties of...
753
Authors: Maciej Sulowski, Andrzej Cias, Hanna Frydrych, Jerzy Frydrych, Irena Olszewska, Ryszard Golen, Marek Sowa
Abstract:The effect of different cooling rate after sintering Mn steels at 1120°C and 1250°C by adding Cr and Mo was investigated. Pre-alloyed...
757
Authors: José M. Torralba, Elena Gordo, Antonia Jiménez-Morales, E.M. Ruiz-Navas, Mónica Campos, M.E. Rabanal, D. Ruiz-Amador
Abstract:In this paper we try to summarize the research activities of the PM group in the University Carlos III of Madrid. This research group is...
1
Authors: Maciej Sułowski, Piotr Matusiewicz
Abstract:The present work discussed the development of statistical analysis as a reproducibility assistance method for evaluation of advanced...
33