采用数值模拟与实验测量相结合的方法,以钢基镀铬层为对象,研究了侧面压入法评价涂层界面结合性能的影响因素,包括压头形状、压入点距离和涂层厚度等。结果表明：侧面压入导致涂层扇形脱落,脱落尺寸随压入点距离增大而增大,与有限元计算结果符合较好。经综合分析,推荐实验规范为：压头为90°圆锥,压入点距离为涂层厚度的2～3倍。
Factors influencing cross-sectional indentation to evaluate coating adhesion were investigated by numerical simulation and experiments.For the model of chromium-plated steel substrate,indenter geormetry,indentation location and coating thickness were considered.The results show that the coating detaches from the substrate with the shape of fan,its size increases with intereasing the indentation distance and agrees well with computation.Generally,the tip angle of a conical indenter and the ratio of indentation distance to coating thickness are recommended to be 90° and 2 to 3,respectively.
参考文献
| [1] | 蔡珣;顾剑锋;周平南 等.离子束增强沉积TiN薄膜界面结合强度的研究[J].金属热处理学报,1997,18(02):30-35. |
| [2] | Kun ZHANG;Qing PENG;Guang-Nan Chen .A Special Method to Evaluate the Strong Adhesion between Brittle Coating and Ductile Substrate[J].Key engineering materials,2007(3):1749-1752. |
| [3] | 张国祥,张坤,陈光南,罗耕星,肖京华.评价强界面涂层界面结合能力的横截面压入法[J].表面技术,2006(06):1-4. |
| [4] | J. M. SANCHEZ;S. EL-MANSY;B. SUN .CROSS-SECTIONAL NANOINDENTATION: A NEW TECHNIQUE FOR THIN FILM INTERFACIAL ADHESION CHARACTERIZATION[J].Acta materialia,1999(17):4405-4413. |
| [5] | M. R. Elizalde;J. M. Sanchez;J. M. Martinez-Esnaola;D. Pantuso;T. Scherban;B. Sun;G. Xu .Interfacial fracture induced by cross-sectional nanoindentation in metal-ceramic thin film structures[J].Acta materialia,2003(14):4295-4305. |
| [6] | X.J. Zheng;Y.C. Zhou .Investigation of an anisotropic plate model to evaluate the interface adhesion of thin film with cross-sectional nanoindentation method[J].Composites science and technology,2005(9):1382-1390. |
| [7] | H. Zhang;Q. Chen;D. Y. Li .Development of a novel lateral force-sensing microindentation technique for determination of interfacial bond strength[J].Acta materialia,2004(7):2037-2046. |
| [8] | 张祖贤.兵器黑色金属材料手册[M].北京:兵器工业出版社,1989 |
| [9] | 杨班权,陈光南,张坤,罗耕星,肖京华.涂层/基体材料界面结合强度测量方法的现状与展望[J].力学进展,2007(01):67-79. |
| [10] | 李国英.表面工程手册[M].北京:机械工业出版社,1997 |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%