Preparation of MoS2/Zr Coated High Speed Steel Tool and its Cutting Performance
MoS2/Zr composite coatings were deposited onto M2 high speed steel tools by medium-frequency magnetron sputtered coupled with multi-arc ion plated techniques. The thickness, micro-hardness and coating-substrate adhesion strength of the coatings were studied. Surface morphologies of the as-deposited coatings as well as wear surface features after dry machining tests were investigated. The experimental results indicated that deposition of PVD MoS2/Zr composite coatings onto M2 HSS tools shows higher hardness compared to the pure MoS2 coatings, and exhibits significant enhancement in cutting performance. The wear mechanism of the MoS2/Zr coated tools is mainly delamination of the coating owing to the elevated cutting temperature and friction force.
Julong Yuan, Shiming Ji, Donghui Wen and Ming Chen
J.L. Zhao et al., "Preparation of MoS2/Zr Coated High Speed Steel Tool and its Cutting Performance", Advanced Materials Research, Vols. 69-70, pp. 153-157, 2009