비정질 Co_(82)M_(12)B_(6)(M=Nb, Ti, Hf)합금의 전기화학적 부식 특성 = Electrochemical Corrosion Behavior of Amorphous Co_(82)M_(12)B_(6)(M=Nb, Ti, Hf) Alloys

다국어 초록 (Multilingual Abstract)

Co_(82)M_(12)B_(6)(M=Nb, Ti, Hf) alloys were grown by a quenching method. Corrosion potential, corrosion current density, corrosion rate, and corrosion resistance on polarization curves at various temperatures of the amorphous Co_(82)M_(12)B_(6)(M=Nb, Ti, Hf) alloys were studied. The results were particularly examined to identify the influences of various factors including various conditions such as temperature, solutions, pH, etc. With increasing temperature, the corrosion current density and the corrosion rate increased. The corrosion resistance was inversely proportional to the corrosion rate. also, the resistance was advanced by Co_(82)Nb_(12)B_(6) alloy in H_(2)SO_(4), NaOH solutions, and advanced by Co_(82)Hf_(12)B_(6) alloy in HCl solution. The potentiodynamics parameters of the corrosion were obtained using the Tafel plot. The value of I_(r)/I_(f) was used in measuring the corrosion sensitivity of the amorphous Co_(82)Ti_(12)B_(6) alloy in a 8×10^(-2) M H_(2)SO_(4) solution, and the value of I_(r)/I_(f) was 0.95.

목차 (Table of Contents)

• 목차 = i
• Abstract = vi
• 제1장 서론 = 1
• 제2장 이론 = 3
• 제1절 부식의 일반적인 이론 = 3
• 제2절 분극특성 = 5
• 제3장 실험방법 = 7
• 제1절 시료제작 및 X-선 회절실험 = 7
• 제2절 분극실험 = 8
• 제4장 실험결과 및 고찰 = 10
• 제1절 X-선 회절실험 = 10
• 제2절 분극실험 = 11
• 1. CO_(82)Ti_(12)B_(6) = 11
• 2. CO_(82)M_(12)B_(6)(M＝Ti, Nb, Hf) = 22
• 제5장 결론 = 33
• 참고문헌 = 34