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[74120] Artykuł:

MICROSTRUCTURE OF AISi17/Mg JOINTS FABRICATED BY DIFFUSION BONDING AT DIFFERENT TEMPERATURES

Czasopismo: 26th International Conference on Metallurgy and Materials   Strony: 1887-1892
ISBN:  978-80-87294-79-6
Wydawca:  TANGER LTD, KELTICKOVA 62, SLEZSKA, OSTRAVA 710 00, CZECH REPUBLIC
Opublikowano: 2017
Miejsce wydania:  Ostrava
 
  Autorzy / Redaktorzy / Twórcy
Imię i nazwisko Wydział Katedra Do oświadczenia
nr 3		 Grupa
przynależności		 Dyscyplina
naukowa		 Procent
udziału		 Liczba
punktów
do oceny pracownika		 Liczba
punktów wg
kryteriów ewaluacji
Renata Mola orcid logo WMiBMKatedra Technik Komputerowych i Uzbrojenia**Niezaliczony do "N"Inżynieria mechaniczna10015.0015.00  

Grupa MNiSW:  Materiały z konferencji międzynarodowej (zarejestrowane w Web of Science)
Punkty MNiSW: 15
Klasyfikacja Web of Science: Proceedings Paper

Web of Science Logo Web of Science    
Keywords:

Magnesium  aluminum alloy  diffusion bonding  intermetallic phases  microstructure 


Abstract:

The AISi17/Mg joints under analysis were produced by diffusion bonding. They contained intermetallic phases, which were a result of diffusion occurring at the AISi17/Mg reactive interface. The microstructure and thickness of the bonding zone were dependent on the heating temperature. Two temperatures were analyzed: 420 degrees C and 440 degrees C. The bonding zone produced at the lower temperature was thinner (50 pm). It was composed of an AI(3)Mg(2) intermetallic phase (observed on the AISi17 side), an Mg17Al12 intermetallic phase (observed on the Mg side) and an Mg2Si phase. In this case the Mg2Si was irregularly distributed over the Al-Mg intermetallic phase matrix. Fine particles of Mg2Si phase were observed in the region adjacent to the AISi17 and large areas of this phase were visible locally near large Si particles. When the temperature of the diffusion bonding process was higher, a much thicker bonding zone (about 400 pm) formed. The structural constituents detected there were: AI(3)Mg(2) (on the AISi17 side), Mg17Al12 and a solid solution of Al and Si in Mg (on the AZ91 side) and an Mg2Si phase. The distribution of the Mg2Si phase in the bonding zone was more regular; fine particles of this phase were visible all over the bonding zone.


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