Effect of laser-assisted irradiation on the characteristics and corrosion behavior of plasma electrolytic oxidation ceramic coating on AZ31B magnesium alloy

被引：4
|
作者：
Li, Lin [1 ,2 ,3 ]
Yin, Yanyi [1 ,2 ,3 ]
Wu, Guolong [1 ,2 ,3 ]
Wang, Ye [1 ,2 ,3 ]
Yang, Zhenzhen [1 ,2 ,3 ]
Wen, Chen [4 ]
Yao, Jianhua [1 ,2 ,3 ]
机构：
[1] Zhejiang Univ Technol, Coll Mech Engn, Hangzhou 310014, Peoples R China
[2] Minist Educ, Zhejiang Prov Key Lab Special Equipment Mfg & Adv, Hangzhou, Peoples R China
[3] Zhejiang Univ Technol, Inst Laser Adv Mfg, Hangzhou 310014, Peoples R China
[4] Beijing Spacecrafts Mfg Factory Co Ltd, Beijing 100094, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2024年 / 50卷 / 21期
基金：
中国国家自然科学基金;
关键词：
AZ31B magnesium alloy; Laser; Plasma electrolytic oxidation; Composite process; Ceramic coating; Corrosion mechanism; CURRENT-DENSITY; PEO COATINGS; RESISTANCE; PHOSPHATE; LAYER; FILMS; AZ91D; MICROSTRUCTURE; NANOPARTICLES; PERFORMANCE;
D O I：
10.1016/j.ceramint.2024.07.447
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The Laser/PEO ceramic coating was successfully prepared in situ on AZ31B magnesium alloy by laser-assisted PEO (Laser/PEO) composite process. SEM, EDS, CLSM, XRD, XPS and M - S tests were used to observe the effects of different laser power densities on the morphology, chemical composition and electronic properties of PEO ceramic coating. The corrosion behavior of PEO ceramic coating (S0) and Laser/PEO ceramic coating (S1) was systematically observed by PDP test, EIS test, SEM, EDS, XRD and XPS by long-term immersion experiments (24, 96, 168 h) in 3.5 % NaCl solution. Moreover, the effect of laser-assisted irradiation on the corrosion mechanism of PEO ceramic coating was discussed. The Laser/PEO coating (S1) possessed better long-term corrosion resistance than PEO coating (S0), which was attributed to the improvement of laser-assisted irradiation on the density, crystallinity, thickness, and corrosion-resistant phase proportion and distribution of PEO coating.
引用
收藏
页码：41364 / 41378
页数：15
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