| 添加碳化钨和石墨改善真空熔覆Ni-Co基合金涂层的极化行为 |
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| 引用本文： | 杨贵荣,宋文明,王建儒,张玉福,王富强,马颖.添加碳化钨和石墨改善真空熔覆Ni-Co基合金涂层的极化行为[J].材料导报,2018,32(6):924-929. |
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| 作者姓名： | 杨贵荣 宋文明 王建儒 张玉福 王富强 马颖 |
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| 作者单位： | 兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室;甘肃蓝科高新石化装备股份有限公司 |
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| 基金项目： | 国家自然科学基金(51765035；51205178)；甘肃省高等学校科研项目(2017A-015) |
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| 摘 要： | 采用真空熔覆技术在45#钢表面制备了不同Co含量的Ni-Co基合金熔覆层及Ni-Co+WC、Ni-Co+WC+Graphite复合熔覆层,研究了涂层在3.5%NaCl溶液中的电化学行为。结果表明,在ZG45表面制备的Ni-Co基合金熔覆层的自腐蚀电位随Co含量的增加而升高,其自腐蚀电位相比ZG45至少提高了4.98%,腐蚀电流则降低了74.93%。在Ni-Co基合金熔覆层中添加WC和石墨(G)后其自腐蚀电位提高:同时添加WC和G时的自腐蚀电位相比只添加WC时提高了32.39%,腐蚀电流则降低了19.37%;且同时添加WC和G试样的自腐蚀电位比Ni-40%Co提高33.86%,耐腐蚀性能相比Ni-Co基合金得到了增强和改善。另外,在同时添加WC和G的试样的极化曲线上出现了钝化区,且其钝化区腐蚀电位宽度大于只添加WC的试样,说明前者的耐腐蚀性优于后者。
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| 关 键 词： | 碳化钨 石墨 镍钴基复合涂层 真空熔覆 极化曲线 |
The Addition of WC and Graphite Improves Polarization Behavior of Ni-Co-based Alloy Coatings Fabricated by Vacuum Fusion Sintering |
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| YANG Guirong,SONG Wenming,WANG Jianru,ZHANG Yufu,WANG Fuqiang and MA Ying.The Addition of WC and Graphite Improves Polarization Behavior of Ni-Co-based Alloy Coatings Fabricated by Vacuum Fusion Sintering[J].Materials Review,2018,32(6):924-929. |
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| Authors: | YANG Guirong SONG Wenming WANG Jianru ZHANG Yufu WANG Fuqiang and MA Ying |
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| Affiliation: | State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050,State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050;Lanpec Technologies Limited, Lanzhou 730070,State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050,State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050;Lanpec Technologies Limited, Lanzhou 730070,State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050 and State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050 |
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| Abstract: | |
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| Keywords: | tungsten carbide graphite Ni-Co-based alloy composite coating vacuum fusion sintering polarization curve |
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