• Journal of Welding and Joining
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• 제13권1호
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• pp.62-72
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• 1995

• Journal of Welding and Joining
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• 제22권5호
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• pp.18-25
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• 2004

• Journal of Welding and Joining
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• 제18권3호
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• pp.1-4
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• 2000

• Journal of Welding and Joining
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• 제18권4호
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• pp.1-3
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• 2000

• Journal of Welding and Joining
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• 제18권5호
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• pp.1-2
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• 2000

• Journal of Welding and Joining
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• 제17권2호
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• pp.1-8
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• 1999

• Journal of Welding and Joining
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• 제17권2호
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• pp.9-17
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• 1999

• Journal of Welding and Joining
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• 제17권2호
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• pp.18-24
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• 1999

• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2004년도 추계학술발표대회 개요집
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• pp.43-45
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• 2004

Brazing between cemented carbides and steel for tool investigated by copper alloy brazing filler. Copper alloy filler was high liquidus temperature($990^{\circ}C$), therefor the shank(steel) occurred softening. Because brazing sample was necessary to heat treatment after brazing process. This experiment, influence of austenite time and purge temperature on heat treatment were investigated. As a result, these treatments obtained to high deflective strength In case of austenite time was short and purge temperature was low. Especially, nitride precipitated brazing layers was strongly influenced by the deflective strength.

• Journal of Welding and Joining
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• 제30권6호
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• pp.106-112
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• 2012

This study was carried out to investigate the effect of bonding temperature and holding time on microstructure and mechanical properties in brazing joints of Ni-base superalloy using MBF-30 (Ni-4.5Si-3.2B [wt.%]). The heating rate was $20^{\circ}C$/min to the bonding temperatures $1050^{\circ}C$, $1070^{\circ}C$, $1090^{\circ}C$ under high vacuum condition. The holding times were 100s, 400s, 900s and 1600s. $Ni_3B$ phases and proeutectic Ni were observed in the interlayer of Ni-201. Then, Ni3B and Ni3Si were found in the middle region of brazing joint. Cr-boride phase appeared in the interlayer of Inconel-625. Tensile strength and elongation were decreased at $1050^{\circ}C$-1600s, $1070^{\circ}C$-900s and $1090^{\circ}C$-400s. After observation the fracture specimens, There was Ni3B which is very brittle phase in the grain boundary of Ni201.