方信贤,巴志新,甄睿,王章忠

• 1:南京工程学院材料工程学院

摘要(Abstract)：

采用质量损失法研究了化学镀Ni-P镀层及对比材料316L在单相流(20%H2SO4)和两相流(20%H2SO4+20 g/L黄砂)中冲刷腐蚀行为,以及电化学方法研究了介质温度对Ni-P镀层及316L电化学行为的影响。结果表明,介质温度升高(20~80℃),Ni-P镀层腐蚀速率、冲刷腐蚀速率和冲刷腐蚀交互作用增大,但与316L和300℃热处理的晶态镍磷镀层相比,介质温度对镀态和200℃热处理的非晶镍磷镀层影响较小。镀态镍磷和316L的腐蚀电流密度随介质温度升高而增大,容抗弧半径则随介质温度升高而减小。Ni-P镀层腐蚀和单相流冲刷腐蚀机制是均匀腐蚀,而两相流中则为均匀腐蚀+犁削机制。

关键词(KeyWords)： Ni-P镀层;316L;腐蚀;冲刷腐蚀;阻抗谱

Abstract:

Keywords:

基金项目(Foundation): 南京工程学院重大科技创新基金项目(CKJA201202);; 江苏省高校自然科学研究课题(12KJB430007)

作者(Author): 方信贤,巴志新,甄睿,王章忠

DOI: 10.13289/j.issn.1009-6264.2014.06.033

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