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| 测量镀铬层界面韧性的激光屈曲法 | |
| 引用本文： | 张国祥,张坤,罗耕星,陈光南,李怀学.测量镀铬层界面韧性的激光屈曲法[J].吉林大学学报(工学版),2008,38(1):57-60. |
| 作者姓名： | 张国祥 张坤 罗耕星 陈光南 李怀学 |
| 作者单位： | 1. 中国科学院,力学研究所,北京,100080;山东理工大学,材料科学与工程学院,山东,淄博,255000;中国科学院,研究生院,北京,100080 2. 中国科学院,力学研究所,北京,100080 3. 中国科学院,力学研究所,北京,100080;中国科学院,研究生院,北京,100080 |
| 摘 要： | 为了测量强界面电镀铬层的界面韧性,利用连续CO2激光器对钢基体上的电镀铬层表面进行循环扫描实验。结果表明:该种加热方式能够诱发铬层沿激光扫描方向呈周期性分布的屈曲变形。在此基础上,结合涂层屈曲变形理论,提出测量镀铬层界面韧性的激光屈曲法。该方法只需对一个屈曲单元的最大屈曲高度和屈曲半长进行测量,就可给出界面韧性。作为应用举例,利用该方法对上述镀铬层/钢基体结构界面韧性进行了测量。 |
| 关 键 词： | 材料的表面与界面 实验力学 界面韧性 镀铬层 激光屈服法 连续CO2激光器 |
| 文章编号： | 1671-5497（2008）01-0057-04 |
| 收稿时间： | 2006-12-21 |
| 修稿时间： | 2006年12月21 |
Laser buckling method to measure interfacial toughness of chromium-plating coating |
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| Zhang Guo-xiang,Zhang Kun,Luo Geng-xing,Chen Guang-nan,Li Huai-xue.Laser buckling method to measure interfacial toughness of chromium-plating coating[J].Journal of Jilin University:Eng and Technol Ed,2008,38(1):57-60. | |
| Authors: | Zhang Guo-xiang Zhang Kun Luo Geng-xing Chen Guang-nan Li Huai-xue |
| Affiliation: | 1.Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080,China; 2.School of Material Science and Engineering, Shandong University of Technology, Zibo 255000,China; 3.Graduate School of China Academy of Sciences, Beijing 100080, China |
| Abstract: | To measure the interracial toughness of strong Cr-plating coating on substrate, experiment of laser periodical scanning into the surface of Cr-plating coating on steel substrate is carried out using CO2 continuous laser. It is observed that this mode of heating can induce chromium coating to periodically buckle along the laser scanning direction. Based on this observation, incorporating the theory of coating buckling deformation, the laser buckling method is presented. This method can be used to measure the interracial toughness of Cr-plating coating with the help of just one buckling unit. As a case study, the interracial toughness of the chromium coating on steel substrate is measured by this method. |
| Keywords: | surface and interface of materials experimental mechanics interracial toughness chromium-plating coating laser buckling method CO2 continuous laser |
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