| J4不锈钢及化学镀Ni-P和Ni-Cu-P镀层在液-固两相流中的冲刷腐蚀行为 |
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| 引用本文： | 方信贤,白允强,王章忠. J4不锈钢及化学镀Ni-P和Ni-Cu-P镀层在液-固两相流中的冲刷腐蚀行为[J]. 金属学报, 2010, 0(2) |
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| 作者姓名： | 方信贤 白允强 王章忠 |
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| 作者单位： | 南京工程学院材料工程学院; |
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| 基金项目： | 南京工程学院重大科研基金资助项目KXJ07073 |
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| 摘 要： | 用质量损失法系统研究了不同温度(25和50℃)和不同冲刷速率(0.63—1.88 m/s)下,J4不锈钢、Ni-P和Ni-Cu-P合金镀层,及对比材料316L不锈钢在液-固两相流(20%H_2SO_4+20 g/L Al_2O_3)中的冲刷腐蚀行为,结果表明:不锈钢和镀层的抗冲刷腐蚀性能由高到低依次为镀态Ni-Cu-P,镀态Ni-P,热处理态Ni-Cu P,316 L,J4,提高两相流介质温度均使它们的冲刷腐蚀速率增大。316L不锈钢在25℃液-固两相流介质中的冲刷腐蚀速率分别为镀态Ni-Cu P,镀态Ni-P和热处理态Ni-Cu-P镀层的8.5倍,8倍和2.6倍以上,而在50℃下分别为392倍,80倍和14.8倍以上;J4不锈钢在25和50℃液-固两相流介质中的冲刷腐蚀速率分别为316L不锈钢的28倍和13倍以上,在25和50℃,J4不锈钢分别为选择性腐蚀和均匀腐蚀,而316L不锈钢均为轻微选择性腐蚀,Ni-P和Ni-Cu-P合金镀层均为均匀腐蚀。
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| 关 键 词： | Ni-Cu-P Ni-P J4不锈钢 316L不锈钢 液-固两相流 冲刷腐蚀 |
EROSION CORROSION BEHAVIOUR OF J4 STAINLESS STEEL AND ELECTROLESS PLATING COATINGS OF Ni-P AND Ni-Cu-P IN LIQUID-SOLID TWO-PHASE FLOW |
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| FANG Xinxian,BAI Yunqiang,WANG Zhangzhong School of Materials Science , Engineering,Nanjing Institute of Technology,Nanjing. EROSION CORROSION BEHAVIOUR OF J4 STAINLESS STEEL AND ELECTROLESS PLATING COATINGS OF Ni-P AND Ni-Cu-P IN LIQUID-SOLID TWO-PHASE FLOW[J]. Acta Metallurgica Sinica, 2010, 0(2) |
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| Authors: | FANG Xinxian BAI Yunqiang WANG Zhangzhong School of Materials Science Engineering Nanjing Institute of Technology Nanjing |
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| Affiliation: | FANG Xinxian,BAI Yunqiang,WANG Zhangzhong School of Materials Science , Engineering,Nanjing Institute of Technology,Nanjing 211167 |
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| Abstract: | Components used really in industries such as mechanical,chemical,mining and petroleum industries,are often exposed to corrosive and erosive liquid-solid two phase flow environments. These environments lead not only to high costs maintaining these components but also to shortening their service life.The behaviors of metal materials under corrosive and erosive conditions as well as the related mechanisms have been researched for several years.For reducing material failure caused by erosion-corrosion at surfac... |
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| Keywords: | Ni-Cu-P Ni-P J4 stainless steel 316L stainless steel liquid-solid two-phase flow erosion and corrosion |
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