摘要
在Cr、Mo成分一定的情况下，通过改变铜的质量分数（1％～5％），制备新型Ni-Cr-Mo-Cu耐蚀合金。利用化学浸泡法、电化学法（极化曲线法、循环伏安法）对其耐晶间腐蚀以及耐点蚀能力进行分析研究。实验结果表明，加（cu）=1％～5％的Ni—Cr—Mo—Cu合金具有优良的耐晶间腐蚀以及点蚀性能，相对而言w（cu）=2％的镍基合金耐晶间腐蚀以及点蚀性能较差，因此说明合适的铜含量可以提高镍基合金的耐晶问腐蚀和点蚀性能；并且试验合金晶问腐蚀与点蚀的电化学行为和特征与其浸泡腐蚀的结果是吻合的。
In circumstances of the Cr, Mo elements with certain amount, by changing the mass fraction of copper （1%-5%）, a new Ni-Cr-Mo-Cu corrosion resistant alloy has been prepared of which the resistance ability to intergranular corrosion and pitting corrosion has been then analysed by using chemical immersion, electrochemical （ polarization curve, cyclic voltammetry）. Experimental results have shown that the Ni-Cr-Mo-Cu alloy with w（Cu）= 1%-5% had excellent resistance to intergranular corrosion and pitting corrosion performance, relatively speaking the resistant to intergranular corrosion and pitting corrosion performance of nickel-base alloy with w （Cu）=2% was poor while the nickel-base alloy with w（Cu）=5% had better resistance performance to intergranular corrosion and pitting; and the behavior and characteristics of the test alloy intergranular electrochemical corrosion and pitting corrosion has met exactly with that of their immersion.
出处
《中国铸造装备与技术》
CAS
2013年第5期39-43,共5页
China Foundry Machinery & Technology
关键词
镍基耐蚀合金
化学浸泡腐蚀
电化学腐蚀
晶间腐蚀
点蚀
Nickel-base corrosion-resistant alloy
Chemical erosion
Electrochemical corrosion
Intergranularcorrosion
Pitting corrosion
