کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1665406 1518043 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fatigue property improvements of Ti-6Al-4V by thin film coatings of metallic glass and TiN: a comparison study
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Fatigue property improvements of Ti-6Al-4V by thin film coatings of metallic glass and TiN: a comparison study
چکیده انگلیسی
Thin film metallic glasses (TFMGs) with unique physical and mechanical properties have attracted interest in the past decade. With the aim of taking their advantages to their applications, a 200-nm-thick TFMG (Zr50Cu27Al16Ni7) film with a 10 nm titanium adhesion layer and a hard coating TiN film were coated on a substrate. Effects of these two types of films on the four-point fatigue property improvements of Ti-6Al-4V substrate were investigated. The fatigue life improved from 2.2 × 105 cycles of uncoated sample to 3.7 × 106 cycles, ~ 17 times, and 1.0 × 106 cycles, ~ 4.5 times, by TFMGs and TiN coatings, respectively, all under a stress of 675 MPa. It is demonstrated that both TFMG and TiN films with high strength retarded the cracks propagated during fatigue cycles, resulting in increased fatigue life. The especially significant improvement from TFMGs was largely attributable to improved ductility and flexibility and to increased adhesion strength from the titanium adhesion layer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 561, 30 June 2014, Pages 33-37
نویسندگان
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