| Ni-Cr-Mo-Cu-Mx合金耐晶间腐蚀及点蚀性能 |
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| 引用本文： | 杨瑞成, 牛绍蕊, 李智, 靳塞特. Ni-Cr-Mo-Cu-Mx合金耐晶间腐蚀及点蚀性能[J]. 工程科学学报, 2010, 32(4): 461-465. DOI: 10.13374/j.issn1001-053x.2010.04.009 |
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| 作者姓名： | 杨瑞成 牛绍蕊 李智 靳塞特 |
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| 作者单位： | 兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,兰州,730050;兰州理工大学有色金属合金及加工教育部重点实验室,兰州,730050;兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,兰州,730050 |
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| 摘 要： | 向镍基耐蚀合金中添加Ti、Fe元素,采用手工电弧炉熔炼制备新型Ni-Cr-Mo-Cu-Mx耐蚀合金,用化学浸泡法、电化学法(极化曲线法、循环伏安法)对其耐晶间腐蚀和耐点蚀能力进行研究.结果表明:在Ni-Cr-Mo-Cu合金中加入Ti元素可以增强其耐晶间腐蚀能力,减弱其耐点蚀的能力;加入Fe元素会降低Ni-Cr-Mo-Cu合金耐晶间腐蚀的能力,但提高该合金耐点蚀的能力;实验合金晶间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.
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| 关 键 词： | 镍基合金 化学浸泡腐蚀 电化学腐蚀 晶间腐蚀 点蚀 |
| 收稿时间： | 2009-07-17 |
Intergranular corrosion and pitting corrosion resistances of Ni-Cr-Mo-Cu-Mx alloys |
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| YANG Rui-cheng, NIU Shao-rui, LI Zhi, JIN Sai-te. Intergranular corrosion and pitting corrosion resistances of Ni-Cr-Mo-Cu-Mx alloys[J]. Chinese Journal of Engineering, 2010, 32(4): 461-465. DOI: 10.13374/j.issn1001-053x.2010.04.009 |
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| Authors: | YANG Rui-cheng NIU Shao-rui LI Zhi JIN Sai-te |
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| Abstract: | Ni-Cr-Mo-Cu-Mx nickel-base corrosion-resistant alloys were prepared by adding Ti and Fe with a manual electro-arc furnace.Intergranular corrosion and pitting corrosion resistances of these alloys were investigated by chemical erosion and electrochemical corrosion techniques(polarization curve methods and cyclic voltammetry).The results showed that the intergranular corrosion resistance of the alloys added Ti increased and the pitting corrosion resistance decreased.Fe addition deteriorated the intergranular corrosion resistance of Ni-Cr-Mo-Cu alloys but improved the pitting corrosion resistance.The electrochemical behaviors and characteristics of intergranular corrosion and pitting corrosion coincided with the results of chemical erosion. |
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| Keywords: | nickel-base alloy chemical erosion electrochemical corrosion intergranular corrosion pitting corrosion |
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