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Study on the performance of physical vapor deposit ed multilayer AlCrN nanocomposite coating

ERGENG ZHANG1,* , ZEMING FU1

Affiliation

  1. School of Mechanical Engineering, Shanghai Institute of Technology, Shanghai 201418, China

Abstract

Multilayer AlCrN nanocomposite coatings were prepared by arc source technology, the multi layer AlCrN nanocomposite coating is superior to single general gradient AlCrN coating. It was confirmed by the observation of microstructure, cutting experiments and the cutting edge of coated tool morpholo gy analysis. Due to the presence of soft hard alternating Cr+CrN/AlCrN layers in the structure, multi layer AlCrN nanocomposite coating plays an important role in alleviating the stress concentration in the coating, resisting to external shocks and improving adhesion with the substrate Especially in emulsion liquid cooling environment, multi layer AlCrN nanocomposite coatings exhibit excellent cutting performance. In term of the thick film, the multi layer AlCrN nanocomposite coating has also certain advan tages more than single layer gradient AlCrN coating it plays an important role in the exploration and demonstration to improve future membrane structure of physical vapor coating..

Keywords

Physical vapor deposition, Multi layer AlCrN, Single gradient AlCrN, Friction and wear, Stress concentration, Microstructure, Coated tool, Nanocomposite coating.

Citation

ERGENG ZHANG, ZEMING FU, Study on the performance of physical vapor deposit ed multilayer AlCrN nanocomposite coating, Optoelectronics and Advanced Materials - Rapid Communications, 9, 1-2, January-February 2015, pp.120-125 (2015).

Submitted at: May 18, 2014

Accepted at: Jan. 21, 2015