Ni基复合镀层静态腐蚀实验研究

陈晓磊; 谢凤宽; 庄书娟

引用本文:	陈晓磊，谢凤宽，庄书娟.Ni基复合镀层静态腐蚀实验研究[J].中国表面工程,2006,(7):237~240
	CHEN Xiao-Lei，XIE Feng-Kuan，ZHUANG Shu-Juan.Study on Static Corrosion Experiment of Nickel-Base Composite Coatings[J].China Surface Engineering,2006,(7):237~240

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Ni基复合镀层静态腐蚀实验研究
陈晓磊，谢凤宽，庄书娟
装备再制造技术国防科技重点实验室，北京 100072

摘要:

介绍了Ni、n-SiC∕Ni、n-Al₂O₃∕Ni 3种镀层在5%H₂SO₄、5% H₂SO₄+3.5%NaCl腐蚀96 h的失重情况，用SEM和X射线衍射仪分别观测了腐蚀形貌及成分分析。深入对腐蚀镀层进行了理论分析，表明在腐蚀过程中由于镀层组织结构不均匀产生了微观腐蚀电池。

关键词: 腐蚀晶界微电池

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Study on Static Corrosion Experiment of Nickel-Base Composite Coatings

CHEN Xiao-Lei，XIE Feng-Kuan，ZHUANG Shu-Juan

National Key Lab for Remanufaction, Beijing 100072

Abstract:

Weight loss of Ni、n-Sic/Ni and n-Al₂O₃/Ni coatings after 96 hours corrosion in 5%H₂SO₄、5%H₂SO₄+3.5%NaCl are introduced，corrosion morphology and components are analyzed by SEM and X-Ray diffraction. The theories of corrosion coatings are discussed as well. The results show that micro-corrosion batteries are generated due to non-uniform coating structure．

Key words: corrosion crystal boundary micro battery