Microstructure of Al-Mn-Be melt-spun ribbons
Povzetek
Microstructures of two alloys with the nominal compositions of Al92Mn3Be5 and Al89Mn6Be5 were characterized in the initial as-cast condition (after vacuum induction melting and casting) and after melt spinning. In the initial conditions, both alloys consisted of an aluminum-rich solid solution and two metastable intermetallic phases: Be4AlMn and Al10Mn3(Be). Both alloys melted over a rather large temperature range (between 230 °C and 310 °C). This was the main reason for the presence of unmelted particles in the melt-spun ribbons. Nonetheless, with the use of optimized melt-spinning parameters a microstructure composed of the Al-rich solid solution and finely dispersed quasicrystalline particles in ribbons with thicknesses ranging from 30-200 m was achieved. The dispersion of quasicrystalline particles was finest on the wheel side of the thinnest ribbons, attaining microhardness values between 250HV and 300 HV.
Ključne besede
preiskava materialov;litje na vrteče kovinsko kolo;metalografija;mikrostruktura;aluminijeve zlitine;trakovi;kvazikristali;
Podatki
| Jezik: | Angleški jezik |
|---|---|
| Leto izida: | 2008 |
| Tipologija: | 1.01 - Izvirni znanstveni članek |
| Organizacija: | UL NTF - Naravoslovnotehniška fakulteta |
| UDK: | 620.18:669.715 |
| COBISS: |
11868950
|
| ISSN: | 1044-5803 |
| Št. ogledov: | 1507 |
| Št. prenosov: | 104 |
| Ocena: | 0 (0 glasov) |
| Metapodatki: |
|
Ostali podatki
| Sekundarni jezik: | Angleški jezik |
|---|---|
| Sekundarne ključne besede: | melt spinning;metallography;microstructure;aluminium alloys;melt-spun ribbons;quasicrystalls; |
| URN: | URN:SI:UM: |
| Strani: | str. 1245-1251 |
| Letnik: | ǂVol. ǂ59 |
| Zvezek: | ǂno ǂ9 |
| Čas izdaje: | Sep. 2008 |
| DOI: | 10.1016/j.matchar.2007.10.007 |
| ID: | 8718590 |
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