| Naslov: | DSC/TG of Al-based alloyed powders for p/m applications |
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| Avtorji: | ID Šuštaršič, Borivoj (Avtor)
ID Medved, Jože (Avtor)
ID Glodež, Srečko (Avtor)
ID Šori, Marko (Avtor)
ID Korošec, Albert (Avtor)
ID Inštitut za kovinske materiale in tehnologije (Lastnik avtorskih pravic) |
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| Datoteke: |  Materiali_in_Tehnologije_2014_Sustarsic_et_al._DSCTG_OF_Al-BASED_ALLOYED_POWDERS_FOR_PM_APPLICATIONS.pdf (319,52 KB)
MD5: 66FE70852AB300A099894C5B32E83963
 http://mit.imt.si/Revija/izvodi/mit144/sustarsic.pdf
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Znanstveno delo |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | FNM - Fakulteta za naravoslovje in matematiko
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| Opis: | Al-based alloyed powders, appropriate for the sintering procedure (powder metallurgy, P/M) contain the alloying elements with a high solid solubility in Al, enabling reaction and liquid-phase sintering. They are surface oxidised because of a high affinity of Al to oxygen. Besides, this type of powders contains a polymeric lubricant (wax), which reduces the friction on die walls during automatic die compaction into the final compact shape of a product. This lubricant has to be removed slowly during the first stage of sintering in order to prevent deformations and cracking of the product. Consequently, its sintering is very complex. Generally, these powders are sintered in pure nitrogen with a low dew point. The optimum sintering conditions are generally determined on the basis of light and scanning electron microscopy. The investigation can also be completed very successively with differential scanning calorimetry and thermo gravimetry. The first one allows an insight into the endo- and exothermic reactions, taking place during the heating and cooling of a compacted metal powder, and the second one allows an insight into the processes, connected with the mass loss (a reduction, a lubricant removal, etc.) or mass increase (an oxidation). The DSC/TG of three commercial Al-based alloyed powders was performed in the frame of our investigations. The results were compared with the theoretical thermodynamic-based calculations and the optimum sintering conditions were proposed. |
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| Ključne besede: | aluminium powders, sintering, differential scanning calorimetry and thermo gravimetry |
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| Status objave pri reviji: | Objavljeno |
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| Verzija članka: | Založnikova različica članka |
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| Leto izida: | 2014 |
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| Št. strani: | str. 531-536 |
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| Številčenje: | Letn. 48, št. 4 |
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| PID: | 20.500.12556/DKUM-65178  |
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| ISSN: | 1580-2949 |
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| UDK: | 621.762.5:669.71 |
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| COBISS.SI-ID: | 18068246 |
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| ISSN pri članku: | 1580-2949 |
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| NUK URN: | URN:SI:UM:DK:LVTZOKOK |
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| Datum objave v DKUM: | 15.03.2017 |
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| Število ogledov: | 1033 |
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| Število prenosov: | 113 |
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| Metapodatki: |     |
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| Področja: | Ostalo
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