铸造技术2018，Vol.39Issue(1)：194-197,201,5.DOI:10.16410/j.issn1000-8365.2018.01.052
铝压铸模具CrTiAlSiCN多元复合纳米硬质涂层热稳定性研究
Study on Thermalstability of CrTiAlSiCN Multi-layer Composite Nano-hard Coating for Aluminum Die-casting Mold
摘要
Abstract
The CrTiAlSiCN multi-composite nano-hard coating were prepared on the H13 steel,the hardness,adhesion,wear resistance and oxidation resistance were investigated with the ball mark Rockwell indentation,scratch tester,HV microhardness tester,UMT multifunctional friction and wear tester,scanning electron microscopy (SEM),energy dispersive spectrometer (EDS) and x-ray diffractometer (XRD) for the coated samples with 400、500、600 and 700 ℃ heat treatment.The results show that the coating has multi-layer structure,and the thickness of coating is about 5 μm.With the increase of annealing temperature,the coating hardness remain basically unchanged,and the binding force is reduced.When the annealing temperature is 600 ℃,not only the friction and friction coefficient increase,but also the friction mechanism began from sticky friction losses to abrasive wear.When the annealing temperature reaches 700 ℃,the friction and friction coefficient of the coating reduce,the wear mechanism is converted to abrasive wear,and the wear resistance of the coating enhance.Besides,around the large particles of the coating surface firstly will be oxidation,and the oxide layer of Al2O3-based,a small amount of TiO2 and Cr2O3 will be formed.In these oxidation,Al2O3 and Cr2O3 can inhibit the formation of continuous diffusion into the coating,and improving the coating high temperature oxidation resistance.关键词
真空阴极电弧离子镀/纳米硬质涂层/耐磨损性/抗氧化性Key words
vacuum cathode arc ion plating/nano-hard coating/wear resistance/oxidation resistance分类
矿业与冶金引用本文复制引用
柳琪,王进,王小连,周鹏,孙树峰..铝压铸模具CrTiAlSiCN多元复合纳米硬质涂层热稳定性研究[J].铸造技术,2018,39(1):194-197,201,5.基金项目
山东省泰山学者特聘专家专项(ts201511038) （ts201511038）
山东省重点研发计划项目(2016ZDJS02A15) （2016ZDJS02A15）
