Ni기 삽입금속에 의해 진공 브레이징된 STS303-Cu의 특성평가 = Evaluation of the STS303-Cu vacuum-brazed by Ni-based alloy

다국어 초록 (Multilingual Abstract)

Microstructure and tensile strength of the vacuum brazed stainless steel(STS303) and Cu were investigated. For brazing, the BNi-2, 3, 4, 6 and 7 (A.W.S standard) were used as filler metals. The Oxides such as $Cr_2O_3$ and $SiO_2$ were observed at brazed layers between STS303 and Cu matrix. Also, the intermetallic compounds of Cr-B and Ni-P were observed at brazed layers. Brazed STS303-Cu specimens with BNi-2, 3, 4 filler metals showed almost elastic deformation followed by plastic yielding and strain hardening up to a peak stress. On the other hand, it is likely that the fracture of the brazed specimens with BNi-6 and 7 was occurred in elastic range without plastic yielding up to a peak stress. Among these filler metals, the BNi-2 brazed at $1050^{\circ}C$ showed excellent wettability and the highest tensile strength (101.6MPa).

참고문헌 (Reference)

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9 이용원, "BNi-2계 삽입금속에 의한 SUS304 스테인리스강 접합체의강도와 조직에 미치는 브레이징 온도의 영향: Ni기 삽입금속에 의한 브레이징 접합성의 기초적 검토(II)" 한국재료학회 17 (17): 179-183, 2007