Adhesion performance of TiN coating with amorphous NiTi alloy interlayer onto 316L stainless biosteel deposited by sputtering process

作者：Abubakar T^*; Rahman M; Dowling D P; Stokes J; Hashmi M S J

来源：Surface Engineering, 2010, 26(7): 499-505.

DOI：10.1179/174329409X433885

• Adhesion
• TiN
• Amorphous NiTi alloy interlayer
• Magnetron sputtering
• Biomaterial

In the present study, TiN coatings were deposited with and without NiTi interlayer onto 316L stainless steel substrates to observe the effect of amorphous NiTi layer on the adhesion properties of TiN coatings. The deposition technique was carried out at a temperature (100-150 degrees C) without any substrate heating to form the amorphous NiTi coating, using the closed field unbalanced magnetron sputtering system. The qualitative and quantitative adhesion properties of TiN coatings with and without amorphous NiTi interlayer were measured using the Rockwell C test, the scratch test and the pull-off test. This research demonstrates how the amorphous NiTi interlayer improved the adhesion of TiN coating when a thickness of the NiTi interlayer applied was equal to 0.5 mu m. A thin layer of amorphous NiTi coating was shown to exert a significant influence over the adhesion performance of the TiN coatings and demonstrating its suitability for the tribological applications.

• 出版日期2010-10