MICROSTRUCTURE AND MECHANICAL PROPERTIES OF Fe-Cr-Mo-[Cu-Ni]-C SINTERED STEELS
Artikel i vetenskaplig tidskrift, 2010

The effect of high-temperature vacuum sintering (11800C) integrated with high (6K/s), medium (3K/s) and slow (0.1K/s) cooling rates and conventional sintering at 11800C with cooling rate of ~0.17K/s on shifting the microstructural composition to significant portion of martensite-bainite and thus effective improvement of mechanical properties of Fe-Cr-Mo-[Cu-Ni]-C sintered steels (Astaloy Cr+1 and 2% Cu and/or 50% Distaloy AB powder was investigated. In dependence on chemical composition the yield and tensile strengths of 890-1150 MPa and 913-1230 MPa and impact energy of 10-15 J were achieved by sinter-hardening. The yield and tensile strengths were approximately double than those resulting from conventional sintering.

sinter-hardening

microstructure

sintered steels

mechanical properties

Författare

Eva Dudrova

M Actis Grande

M Rosso

M Kabatova

Robert Bidulsky

Eduard Hryha

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

Acta Metallurgica Slovaca - Conference

1338-1660 (ISSN)

Vol. 1 580-585

Ämneskategorier

Bearbetnings-, yt- och fogningsteknik

Annan materialteknik