کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1663348 | 1008465 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Degradation behaviour of ZrO2-Ni/Al gradient coatings in molten Zn
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In order to improve the corrosion resistance of metallic materials in molten zinc, ZrO2-Ni/Al gradient coatings were sprayed on the surface of the Fe-0.35-0.44 wt.% C steel. The corrosion behaviour and corrosion mechanism of the ZrO2-Ni/Al gradient coatings in molten zinc were studied. The ZrO2-Ni/Al gradient coatings on the surface of steels prolonged the lifetime of samples and changed the corrosion behaviour of the samples in molten zinc. The lifetime of the ZrO2-Ni/Al gradient coatings immersed in molten zinc at 620 °C is 28 days, which is 4 times as long as that of the general ZrO2 coatings. The ZrO2-Ni/Al gradient coatings were corroded in molten zinc at 620 °C, which was caused by zinc atom diffusing along the crystal boundary and pores of the ZrO2-Ni/Al gradient coatings, and reacting with Ni/Al particle in the ZrO2-Ni/Al gradient coatings. The corrosion mechanism of the coatings in molten zinc at 620 °C was crystal boundary corrosion, pitting corrosion and reaction corrosion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 201, Issue 6, 4 December 2006, Pages 2455-2459
Journal: Surface and Coatings Technology - Volume 201, Issue 6, 4 December 2006, Pages 2455-2459
نویسندگان
Yanchun Dong, Dianran Yan, Jining He, Jianxin Zhang, Xiangzhi Li,