中国激光, 2020, 47 (10): 1002001, 网络出版: 2020-10-09
激光熔覆制备铁基复合涂层及其耐热耐蚀性能 
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Fe-Based Composite Coating Prepared by Laser Cladding and Its Heat and Corrosion Resistance
图 & 表
图 1. 试验用粉末的SEM照片。(a) 316L不锈钢粉末;(b) ZrO2-8%Y2O3粉末
Fig. 1. SEM morphology of experimental powders. (a) 316L stainless steel powders; (d) ZrO2-8%Y2O3 powders
图 2. 涂层表面的SEM图像。(a)单层涂层;(b)双层复合涂层
Fig. 2. SEM images of the coatings surface. (a) Single-layer coating; (b) double-layer composite coating
图 3. 基体和涂层试样横截面抛光刻蚀后的金相照片。(a)基体;(b)双层复合涂层
Fig. 3. Cross-section morphology of substrate and double layer composite coating samples after polishing and etching. (a) Substrate; (b) double-layer composite coating
图 4. 不同温度下单层涂层试样的SEM图像。(a) 200 ℃;(b) 400 ℃;(c) 1000 ℃
Fig. 4. SEM images of single-layer coating sample at different temperatures. (a) 200 ℃; (b) 400 ℃; (c) 1000 ℃
图 5. 单层涂层试样的SEM照片及其表面的元素分布。(a) SEM照片;(b)元素分布
Fig. 5. SEM image and element distributions of single-layer coating sample. (a) SEM image; (b) element surface
图 6. 单层涂层试样在海水中浸泡不同时间后的电化学阻抗谱。(a) Nyquist图;(b) Bode图
Fig. 6. Electrochemical impedance spectroscopy of single-layer coating sample immersed in seawater for different time. (a) Nyquist diagram; (b) Bode plots
图 7. 单层涂层试样浸泡不同时间后的电荷转移电阻Rct
Fig. 7. Charge transfer resistance Rct of single-layer coating sample immersed in seawater for different time
图 8. 基体和涂层试样在海水中浸泡24 h后的动电位极化曲线
Fig. 8. Potentiodynamic polarization curves of substrate and coating samples immersed in seawater for 24 h
图 9. 单层涂层试样在海水中浸泡720 h后表面的SEM照片
Fig. 9. SEM images s of corroded surface of single-layer coating sample immersed in seawater for 720 h
白杨, 王振华, 左娟娟, 姜秀杰, 张学卿. 激光熔覆制备铁基复合涂层及其耐热耐蚀性能[J]. 中国激光, 2020, 47(10): 1002001. Bai Yang, Wang Zhenhua, Zuo Juanjuan, Jiang Xiujie, Zhang Xueqing. Fe-Based Composite Coating Prepared by Laser Cladding and Its Heat and Corrosion Resistance[J]. Chinese Journal of Lasers, 2020, 47(10): 1002001.
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