In:
Key Engineering Materials, Trans Tech Publications, Ltd., Vol. 353-358 ( 2007-09-10), p. 2143-2146
Abstract:
Constant current plus pulse current electrical sintering was introduced into the sintering
of a ball-milled nanocrystalline Fe-2Cu-2Ni-1Mo-0.8C mixed powder. Effect of pulse current charging time on the properties of sintered products was studied. Constant electric current sintering
was also used for comparison. A nanostructured iron-based material was obtained within 4 minutes of sintering. It has a density of 7.7 g/cm3 (relative density of 98.7 %) with an average grain size
(iron-matrix) of 58 nm and carbide particle size of less than 100 nm, a hardness of HRC 64 and transverse rupture strength of 2004 MPa. When only pulsed electric current sintering was used with
a sintering time of 5 min, a fine grained iron-base material with density of 7.74 g/cm3 (relative density of 99.2%), a hardness of HRC 65 and transverse rupture strength of 2045 MPa was obtained.
Type of Medium:
Online Resource
ISSN:
1662-9795
DOI:
10.4028/www.scientific.net/KEM.353-358
DOI:
10.4028/www.scientific.net/KEM
DOI:
10.4028/www.scientific.net/KEM.353-358.2143
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2007
detail.hit.zdb_id:
2073306-9
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