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纳米晶Ni-CeO_2复合镀层低温渗铬后的氧化行为
OXIDATION BEHAVIOR OF A LOW-TEMPERATURE CHROMIZED NANO-STRUCTURED Ni-CeO_2 COMPOOSITE COATING ON CARBON STEEL
查看参考文献7篇
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文摘
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利用Ni与CeO_2纳米颗粒共电沉积制备了纳米结构的Ni-CeO_2复合镀层,Ni平均晶粒尺寸为(56±38)nm;对比研究了该复合镀层与粗晶Ni(平均晶粒尺寸约为30 μm)在700℃扩散渗铬5 h后的渗层结构.结果表明,纳米复合镀层上的渗层厚度和渗入Cr浓度都远高于粗晶Ni;800℃下20 h的恒温氧化实验结果表明,纳米复合镀层上渗铬层的抗氧化性能与粗晶Ni相比显著提高. |
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其他语种文摘
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A nanostructured Ni-CeO_2 composite film was fabricated on A3 carbon steel by co-electroplating Ni with nanoparticles of CeO_2. The mean grain size of the deposited Ni was about 56 ±38 nm. Then the Ni-CeO_2 composite and a coarse-grained Ni (mean grain size 30 m) were chromized by pack cementation at 700℃ for 5 h. The results showed that the chromium content and thickness of the chromized layer were greatly increased on the composite compared to those on the coarse-grained Ni. Oxidation at 800℃ for 20 h indicated that the chromized Ni-CeO_2 composite film showed a better oxidation resistance compared to the chromized coarse-grained Ni. |
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来源
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腐蚀科学与防护技术
,2007,19(3):164-166 【核心库】
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关键词
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低温渗铬
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复合镀层
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纳米晶
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高温氧化
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地址
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中国科学院金属研究所, 金属腐蚀与防护国家重点实验室, 沈阳, 110016
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1002-6495 |
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学科
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金属学与金属工艺 |
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基金
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中国科学院“百人计划”项目
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文献收藏号
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CSCD:2820827
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参考文献 共
7
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