Adhesion Property and Tool Wear of Hybrid Deposited Ti(0.67)Al(0.23)Si(0.09)N Coatings with WC Grain Size and Co Content

作者：Kang Myung Chang^*; Kim Min Wook; Kim Kwang Ryul; Kim Kwang Ho; Jung Sung Yuen; Kim Chul; Ahn Dong Gyu

来源：Journal of Computational and Theoretical Nanoscience, 2008, 5(8): 1772-1776.

DOI：10.1166/jctn.2008.872

• WC-Co Materials
• Ti-Al-Si-N Coatings
• Hybrid Coating System (HCS)
• Adhesion
• Tool Wear
• Feed Per Tooth

Ti-Al-S-N coatings, characterized by a nanocomposite comprising nano-sized (Ti, Al, Si)N crystallites embedded in amorphous Si(3)N(4), matrix, could be successfully synthesized on WC-Co substrates by a hybrid coating system (HCS) of arc ion plating (AIP) and sputtering method. Effects of WC grain size and Co contents on the adhesion strength of HCS-Ti-Al-Si-N/substrate interface were studied using a scratch test. The highest critical load, approximately 121 N, was obtained at a WC grain size of 0.5 mu m and Co content of 10 wt%. As the WC grain size and Co content of the substrate increased, the critical load was reduced. Cutting tests were carried out to evaluate the tool wear of Ti(0.67)Al(0.23)Si(0.09)N coated end-mill tool in high-speed machining center. Ti(0.67)Al(0.23)Si(0.09)N coated tool with a WC grain size of 0.5 mu m and Co content of 10 wt% showed excellent wear-resistance in high-speed end-milling of the AISI D2 cold-worked die steel (62 HRC).

• 出版日期2008-8