Surface crack analysis in scratch test on Ni-P-Al2O3 complex coating surface

被引：1
作者：
Tan, Yuanqiang [1 ]
Hu, Binliang [1 ,2 ]
Feng, Jianjun [1 ]
机构：
[1] School of Mechanical Engineering, Xiangtan University
[2] School of Civil Engineering and Mechanics, Xiangtan University
来源：
Tan, Y. (tanyq@xtu.edu.cn) | 1600年 / Chinese Mechanical Engineering Society卷 / 49期
关键词：
Complex coating; Finite element method; Scratch test; Stress analysis; Surface crack;
D O I：
10.3901/JME.2013.20.055
中图分类号：
学科分类号：
摘要：
In order to reveal the failure mechanism of coating, both scratch test on Ni-P-Al2O3 complex coating surface and the simulation of scratch process with finite element method are carried out. Scratch test shows that transverse surface cracks in an interval between two neighboring cracks appear on the scratch groove surface of Ni-P-Al2O3 complex coating. Finite element simulation of scratch process indicates distributing rules of stress in the coating surface and interface at different stages of scratch process, and reveals coating surface cracks generating mode and forming mechanism. Scratch process is divided into three stages that are stylus tip indenting coating surface, slipping on coating surface and rising from coating surface. In former two stages the scratch groove is formed on the coating surface and the surface cracks are induced by stylus tip acting on coating surface. The stress analysis shows that there are two ways of forming coating surface cracks. One is that coating interface cracks are firstly induced, thus they are propagated to the coating surface, and finally the surface cracks are formed. Other is that cracks are directly formed in the coating surface. Because they are induced by maximum tensile stress, surface cracks are mode I. After stylus tip rising from coating surface, biggish residual stresses remain in the coating. Maximum residual tensile stress is first residual principal stress at the coating interface below the contacting central. Those will supply the basis of coating design and application. © 2013 Journal of Mechanical Engineering.
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页码：55 / 62
页数：7
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共 18 条
  • [1] Gao J., Liu L., Shen B., Et al., Microstructure of nanometer-sized Al<sub>2</sub>O<sub>3</sub> composite coating prepared by electroless plating, Journal of Shanghai Jiaotong University, 39, 2, pp. 265-269, (2005)
  • [2] Luo S., Gu M., Hu W., Relationship of proper ties of electro less Ni-P deposits with phosphor us content and heat treatment, Journal of Shanghai Jiaotong University, 31, 4, pp. 98-103, (1997)
  • [3] Xiang Y., Dong S., Xu B., Microstructure, friction and wear characteristics of brush-plated n-Al<sub>2</sub>O<sub>3</sub>/Ni-P composite coating, Chinese Surface Engineering, 2, pp. 15-18, (2005)
  • [4] Narasimman P., Pushpavanam M., Periasamy V.M., Wear and scratch resistance characteristics of electrodeposited nickel-nano and micro SiC composites, Wear, 292-293, 6, pp. 197-206, (2012)
  • [5] Sharma N., Kumar N., Dash S., Et al., Scratch resistance and tribological properties of DLC coatings under dry and lubrication conditions, Tribology International, 56, 12, pp. 129-140, (2012)
  • [6] Yu H., Zhang W., Wang H., Et al., Bonding and sliding wear behaviors of the plasma sprayed NiCrBSi coatings, Tribology International, 66, 10, pp. 105-113, (2013)
  • [7] Wang J., Liu P., Yang L., Et al., Research on microstructure and mechanical properties of TiAlN/AlON nanomultilayers, Journal of Mechanical Engineering, 48, 4, pp. 72-77, (2012)
  • [8] Yan L., Jiang F., Rong Y., Grinding mechanism based on single grain cutting simulation, Journal of Mechanical Engineering, 48, 11, pp. 172-182, (2012)
  • [9] Barnesa D., Johnson S., Snell R., Et al., Using scratch testing to measure the adhesion strength of calcium phosphate coatings applied to poly(carbonate urethane) substrates, Journal of Themechanical Behavior of Biomedical Material, 6, 2, pp. 128-138, (2012)
  • [10] Holmberg K., Laukkanen A., Ronkainen H., Et al., Tribological analysis of fracture conditions in thin surface coatings by 3D FEM modelling and stress simulations, Tribology International, 38, 11-12, pp. 1035-1049, (2005)
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