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Aluminium-alloy transfer to a CrN coating and a hot-work tool steel at room and elevated temperatures
ID
Jerina, Jure
(
Avtor
),
ID
Kalin, Mitjan
(
Avtor
)
PDF - Predstavitvena datoteka,
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(1,61 MB)
MD5: 3F0F75C17A17CCE0848DE8E8A3A683BE
URL - Izvorni URL, za dostop obiščite
https://www.sciencedirect.com/science/article/pii/S0043164815003592?via%3Dihub
Galerija slik
Izvleček
During the processes of forming aluminium alloys, adhesion, and in particular the formation of the aluminium-alloy transfer on the bearing surface of the die, is one of the main reasons for the failure of tools and the poor surface quality of products. The present work was focused on the transfer initiation of an aluminium alloy (EN AW-6060) and its evolution on a coated (CrN) and an uncoated, nitrided hot-work tool steel (AISI H13) at temperatures from room temperature to 500 °C. The contact was investigated in terms of the transferred aluminium alloy surface area size on the uncoated and coated tool-steel surfaces, the topography of the wear trace and the corresponding change in the coefficient of friction. The results show the strong dependence of the tribological properties of the hot-work tool steel and the CrN coating with respect to the aluminium alloy for the temperature together with a limited dependence on the sliding distance. At 20 °C the surface roughness was found to be the main initial cause of the aluminium alloy%s transfer via mechanical interlocking. At higher temperatures (400 °C), this transfer occurred predominantly due to strong adhesion. However, at the highest tested temperature (500 °C) the CrN coating showed a notable decrease of the adhesion with a consequent reduction in the transfer of the aluminium alloy and limited transfer-film formation.
Jezik:
Angleški jezik
Ključne besede:
elevated temperatures
,
friction
,
material transfer
,
aluminium alloy
,
CrN coating
,
hot-work tool steel
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FS - Fakulteta za strojništvo
Status publikacije:
Objavljeno
Različica publikacije:
Recenzirani rokopis
Leto izida:
2015
Št. strani:
Str. 82-89
Številčenje:
Vol. 340/341
PID:
20.500.12556/RUL-106741
UDK:
620.1:669.715(045)
ISSN pri članku:
0043-1648
DOI:
10.1016/j.wear.2015.07.005
COBISS.SI-ID:
14218267
Datum objave v RUL:
14.03.2019
Število ogledov:
2870
Število prenosov:
689
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Objavi na:
Gradivo je del revije
Naslov:
Wear
Skrajšan naslov:
Wear
Založnik:
Elsevier
ISSN:
0043-1648
COBISS.SI-ID:
5374213
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
orodna jekla za delo v vročem
,
povišane temperature
,
trenje
,
prenos materiala
,
aluminijeve zlitine
,
CrN premazi
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0231
Naslov:
Tribologija
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