Study on Residual Stress Modulation and Mechanical Properties of Titanium Nitride Coatings

被引：0
|
作者：
Qiu L. [1 ]
Qiao G. [1 ]
Ma F. [1 ]
Xu K. [1 ,2 ]
机构：
[1] State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an
[2] School of Mechanical and Materials Engineering, Xi'an University, Xi'an
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2017年 / 53卷 / 24期
关键词：
Adhesion strength; Curvature method; Mechanical property; Residual stress; TiN coatings;
D O I：
10.3901/JME.2017.24.042
中图分类号：
学科分类号：
摘要：
The residual stress is the key factor determining the thickness of PVD hard coatings. In present study, TiN coatings with thickness ranging from 3.7 μm to 15.5 μm are fabricated on high speed steel by multi-arc ion plating (MAIP). As the coating thickness increases, the curvatures of substrate become more pronounced yet the average residual stresses are decreased. Combining the substrate curvature method and finite element analysis (FEA), the dependences of residual stress and adhesion strength on coating thickness have been revealed. The larger interfacial shear stress is the main reason for the lower adhesion strength, which is determined by the integral residual stress over the coating thickness. It is also found that the residual stress is increased with increasing bias voltage and/or lowering the working pressure. The coating with the higher compressive residual stress exhibits a dense columnar structure and pronounced (111) orientation. And meanwhile, it owns the higher hardness, larger fracture toughness and favorable wear resistance. Above research results suggest that the mechanical properties of hard coatings can be improved through the residual stress modulation. © 2017 Journal of Mechanical Engineering.
引用
收藏
页码：42 / 48
页数：6
相关论文
共 21 条
  • [1] Huang J.H., Ouyang F.Y., Yu G.P., Effect of film thickness and Ti interlayer on the structure and properties of nanocrystalline TiN thin films on AISI D2 steel, Surface and Coatings Technology, 201, pp. 7043-7053, (2007)
  • [2] Zhao S.S., Yang Y., Li J.B., Et al., Effect of deposition processes on residual stress profiles along the thickness in (Ti, Al)N films, Surface and Coatings Technology, 202, pp. 5185-5189, (2008)
  • [3] Chou W.J., Yu G.P., Huang J.H., Mechanical properties of TiN thin film coatings on 304 stainless steel substrates, Surface and Coatings Technology, 149, pp. 7-13, (2002)
  • [4] Teixeira V., Mechanical integrity in PVD coatings due to the presence of residual stresses, Thin Solid Films, 392, pp. 276-281, (2001)
  • [5] Withers P.J., Bhadeshia H.K.D.H., Residual stress. Part 1-Measurement techniques, Materials Science and Technology, 17, pp. 355-365, (2001)
  • [6] Gong M., Qiao S., Lu G., Et al., Curvature testing and finite element analysis for the residual stresses in TiN coatings on high speed steel, Journal of Mechanical Engineering, 46, 6, pp. 100-106, (2010)
  • [7] Zhang L., Yang H., Pang X., Et al., Microstructure, residual stress, and fracture of sputtered TiN films, Surface and Coatings Technology, 224, pp. 120-125, (2013)
  • [8] Stoney G.G., The tension of metallic films deposited by electrolysis, Proceedings of the Royal Society of London. Series A, 82, pp. 172-175, (1909)
  • [9] Thornton J.A., Hoffman D.W., Stress-related effects in thin films, Thin Solid Films, 171, pp. 5-31, (1989)
  • [10] Oettel H., Wiedemann R., Residual stresses in PVD hard coatings, Surface and Coatings Technology, 76-77, pp. 265-273, (1995)
123