진공브레이징에 의한 SUS304 스테인리스강과 BNi-2계 삽입금속의 접합특성 : Ni기 삽입금속에 의한 브레이징 접합성의 기초적 검토(I)

이용원; 김종훈; Yung-Won Lee; Jong-Hoon Kim

Korean Journal of Materials Research, Vol.17, No.3, 142-146, March, 2007

DOI10.3740/MRSK.2007.17.3.142 Export Citation

진공브레이징에 의한 SUS304 스테인리스강과 BNi-2계 삽입금속의 접합특성 : Ni기 삽입금속에 의한 브레이징 접합성의 기초적 검토(I)

Brazing Property of SUS304 Stainless Steel and BNi-2 Filler Metal with Vacuum Brazing : Fundamental Study on Brazeability with Ni-Based Filler Metal(I)

이용원^†, 김종훈¹

ASE Korea INC. Packaging Engineering
¹한국생산기술연구원 환경 · 에너지본부 신재생에너지팀

Yung-Won Lee^†, and Jong-Hoon Kim¹

Packagin Engineering, ASE Korea INC., Paju, Korea
¹Environmental Energy Division, Korea Intitute of Industrial Technology, Chonan, Korea

E-mail:

Vacuum brazing method has been coming to an important process as one of the new fabricating techniques of metals and alloys. In this study, a vacuum brazing of SUS304 stainless steel with BNi-2 filler metal was carried out in Torr of vacuum atmosphere. The formation of brittle intermetallic compounds in brazed joints between SUS304 stainless steel and BNi-2 filler metal is a major concern, since they considerably degrade the mechanical properties of joints. To obtain enough stable joining strength, it is necessary to understand the unique properties of brazing process with Ni-based filler metals containing boron. So, in this research we investigated the performance of SUS304/BNi-2 brazed system and the brazed joint properties were evaluated at room temperature by using tensile test. Metallurgical and fractographic analysis were used to characterize the microstructure, the mechanisms of brazing, and joint failure modes.

Keywords:Vacuum brazing;BNi-2 filler metal;intermetallic compound;brazing tensile strength

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