INFLUENCE OF GEOMETRY AND COOLING RATE ON PROPERTIES OF SINTER-HARDENED STEELS
The aim of this paper is to deepen the understanding of the influence of the cooling step on the final properties of sinter-hardened components, mainly focusing on part geometry (through the definition of an A/M ratio) and cooling rate. A commercial Distaloy DH powder has been uniaxially pressed in...
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doaj-96e2eb5a66d74a099625f44d3b17f7072020-11-25T01:46:42ZengSciCell s.r.o.Acta Metallurgica Slovaca1335-15321338-11562013-12-0119410.12776/ams.v19i4.181INFLUENCE OF GEOMETRY AND COOLING RATE ON PROPERTIES OF SINTER-HARDENED STEELSIlaria FornoMarco Actis Grande The aim of this paper is to deepen the understanding of the influence of the cooling step on the final properties of sinter-hardened components, mainly focusing on part geometry (through the definition of an A/M ratio) and cooling rate. A commercial Distaloy DH powder has been uniaxially pressed in different shapes, identified in terms of area/mass index, at three different compacting pressures (500, 600 and 800 MPa). During the sinter-hardening process, conducted in a belt-furnace, temperature profiles and atmosphere have been sampled and analysed. Particular attention has been paid to the cooling step, carried out at different furnace settings (10 to 80% of the maximum cooling capability in terms of fan speed). Sintered samples have been analysed in terms of carbon and oxygen content, hardness and microstructure. The considered properties have then been compared with dilatometer data, derived from literature. Matching these properties, a correlation between furnace setting, shape and microstructure has been drawn. https://journals.scicell.org/index.php/AMS/article/view/60powder metallurgysteelsinter-hardeninggeometry index |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ilaria Forno Marco Actis Grande |
spellingShingle |
Ilaria Forno Marco Actis Grande INFLUENCE OF GEOMETRY AND COOLING RATE ON PROPERTIES OF SINTER-HARDENED STEELS Acta Metallurgica Slovaca powder metallurgy steel sinter-hardening geometry index |
author_facet |
Ilaria Forno Marco Actis Grande |
author_sort |
Ilaria Forno |
title |
INFLUENCE OF GEOMETRY AND COOLING RATE ON PROPERTIES OF SINTER-HARDENED STEELS |
title_short |
INFLUENCE OF GEOMETRY AND COOLING RATE ON PROPERTIES OF SINTER-HARDENED STEELS |
title_full |
INFLUENCE OF GEOMETRY AND COOLING RATE ON PROPERTIES OF SINTER-HARDENED STEELS |
title_fullStr |
INFLUENCE OF GEOMETRY AND COOLING RATE ON PROPERTIES OF SINTER-HARDENED STEELS |
title_full_unstemmed |
INFLUENCE OF GEOMETRY AND COOLING RATE ON PROPERTIES OF SINTER-HARDENED STEELS |
title_sort |
influence of geometry and cooling rate on properties of sinter-hardened steels |
publisher |
SciCell s.r.o. |
series |
Acta Metallurgica Slovaca |
issn |
1335-1532 1338-1156 |
publishDate |
2013-12-01 |
description |
The aim of this paper is to deepen the understanding of the influence of the cooling step on the final properties of sinter-hardened components, mainly focusing on part geometry (through the definition of an A/M ratio) and cooling rate. A commercial Distaloy DH powder has been uniaxially pressed in different shapes, identified in terms of area/mass index, at three different compacting pressures (500, 600 and 800 MPa). During the sinter-hardening process, conducted in a belt-furnace, temperature profiles and atmosphere have been sampled and analysed. Particular attention has been paid to the cooling step, carried out at different furnace settings (10 to 80% of the maximum cooling capability in terms of fan speed). Sintered samples have been analysed in terms of carbon and oxygen content, hardness and microstructure. The considered properties have then been compared with dilatometer data, derived from literature. Matching these properties, a correlation between furnace setting, shape and microstructure has been drawn.
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topic |
powder metallurgy steel sinter-hardening geometry index |
url |
https://journals.scicell.org/index.php/AMS/article/view/60 |
work_keys_str_mv |
AT ilariaforno influenceofgeometryandcoolingrateonpropertiesofsinterhardenedsteels AT marcoactisgrande influenceofgeometryandcoolingrateonpropertiesofsinterhardenedsteels |
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1725017687701061632 |