| ZHANG Lei,LIU Yan,ZENG Xiao-mei,Vasiliy，Pelenovich,CHEN Yan-ming,LI Zheng-gang,ZHANG Jun,YANG Bing.Preparation and Performance of AlCrBN/AlCrSiN Nanocrystalline Multilayer Composite Coatings[J],51(2):48-56, 107 |
| Preparation and Performance of AlCrBN/AlCrSiN Nanocrystalline Multilayer Composite Coatings |
| Received:December 25, 2021 Revised:February 10, 2022 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2022.02.005 |
| KeyWord:arc ion plating cutting tool coatings nanocomposite structure mechanical properties wear resistance thermal stability |
| Author | Institution |
| ZHANG Lei |
School of Power and Mechanical Engineering, Wuhan , china |
| LIU Yan |
School of Power and Mechanical Engineering, Wuhan , china |
| ZENG Xiao-mei |
School of Power and Mechanical Engineering, Wuhan , china |
| Vasiliy，Pelenovich |
Institute of Industrial Science and Technology, Wuhan University, Wuhan , china |
| CHEN Yan-ming |
School of Power and Mechanical Engineering, Wuhan , china |
| LI Zheng-gang |
School of Power and Mechanical Engineering, Wuhan , china |
| ZHANG Jun |
School of Power and Mechanical Engineering, Wuhan , china |
| YANG Bing |
School of Power and Mechanical Engineering, Wuhan , china |
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| Abstract: |
| To extend the service life of cutting tool, AlCrBN/AlCrSiN nanocrystalline multilayer composite coating with high hardness, high wear resistance, self-lubrication and high thermal stability was prepared on the cemented WC-Co carbide and stainless steel substrate by multi-arc ion plating technology. The morphology, structure, mechanical properties and wear resistance of the coating before and after annealing in the range of 600~1000 ℃ were systematically studied by scanning electron microscopy, X-ray diffraction, transmission electron microscopy, nano-indentation and friction and wear tester. The AlCrSiN/AlCrBN coating exhibits a typical nanocrystalline composite multilayer structure with fcc-AlCrN nanocrystals embedded in the amorphous SiNx and BNx. The coating has excellent thermal stability performance, and its structure can be maintained to 800 ℃ without change. When the temperature increases to 900 ℃, the coating undergoes amplitude modulation decomposition, forming structures such as c-AlN, hcp-AlN and Cr2N. The structure of coating is stable after annealing at 1000 ℃, since CrN phase also can be detected in the coating. The coating nanohardness and average friction coefficient are 29.15 GPa and 0.67, respectively. AlCrSiN/AlCrBN coating has excellent mechanical properties, wear resistance and high temperature thermal stability, remains stable below 800 ℃, and can still maintain high hardness and good wear resistance after annealing at 1000 ℃, and has good application prospects in the field of high-speed cutting tool coating. |
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