摘要： For further enhancing the fatigue properties of high-strength aluminum alloy, the coating, which was combined with a layer of 200nm ZrCu-based metallic glass thin film (MGTF) coupled with 50nm titanium thin film buffer layer, was applied to coat on the surface of 7075-T6 aluminum alloy by the DC sputtering method. The results show that the fatigue limit could be significantly improved from 150MPa for the uncoated sample to 250MPa (66.7% increase) for the samples coated with ZrCu-based MGTF. In parallel, the fatigue life of 7075-T6 aluminum alloy with ZrCu-based MGTF could be drastically improved 45 times at a stress level of 250MPa than the bare one. The outstanding mechanical properties of ZrCu-based MGTF, such as high strength and good adhesion between the film and the substrate, are the key factors to enhance the fatigue resistance of the coated aluminum alloy. •Metallic glass thin film (MGTF) coatings sputtered on high-strength aluminum alloy.•The 45-time enhancement of fatigue life of MGTF-coated samples at 250MPa was studied.•MGTF-coated samples present 67% higher fatigue limit than the bare one 出版者： Elsevier B.V 出版日期： 2014-06-30 出處： Thin solid films, 2014-06, Vol.561, p.28-32 版權： 2013 Elsevier B.V. 識別號： ISSN: 0040-6090 識別號： EISSN: 1879-2731 識別號： DOI: 10.1016/j.tsf.2013.06.085
