CAJ | 학술논문

通过浸泡法测量了镀镍冲孔钢带在Ni(NO 3)2溶液中的腐蚀速率，采用动电位极化曲线、电化学阻抗谱(EIS)和 XPS 分析进行了镍沉积层在5％ NaCl 溶液中的电化学腐蚀行为和机理研究，结果表明，冲孔钢带基体沉积镍层显著改善了抗腐蚀性能，镍沉积层的固有性质和钝化膜的形成是提高镀镍冲孔钢带防腐性能的主要因素，相比于 Watts镀液，从柠檬酸钠溶液中制备的镀镍冲孔钢带极化电阻高、腐蚀电流小、电极转移电阻大和腐蚀速率小。
통과침포법측량료도얼충공강대재Ni(NO 3)2용액중적부식속솔，채용동전위겁화곡선、전화학조항보(EIS)화 XPS 분석진행료얼침적층재5％ NaCl 용액중적전화학부식행위화궤리연구，결과표명，충공강대기체침적얼층현저개선료항부식성능，얼침적층적고유성질화둔화막적형성시제고도얼충공강대방부성능적주요인소，상비우 Watts도액，종저몽산납용액중제비적도얼충공강대겁화전조고、부식전류소、전겁전이전조대화부식속솔소。
The corrosion rate of nickel plated punched steel strip was measured by immersion corrosion test.The electrochemical corrosion behavior and mechanism of these Ni deposits in 5% NaCl media were investigated by using potentiodynamic polarization test,electrochemical impedance spectroscopy (EIS),and X-ray photoelec-tron spectroscopy (XPS).The results showed that the Ni deposit exhibits remarkably improved corrosion resist-ance.The higher corrosion resistance of nickel plated punched steel strip may be ascribed to the inherent nature of Ni and the more rapid formation of stable and continuous protective passive film.The results also revealed that the Ni deposited from citrate bath has higher polarization resistance,smaller corrosion current,higher charge transfer resistance and smaller corrosion rate,compared with that from Watts bath.