کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10156116 | 1666373 | 2018 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Free volume gradient effect on shear banding behavior in CuZr/CuZr multilayers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Free volume gradient was introduced using intermittent magnetron sputtering processes to fabricate two different series of CuZr/CuZr metallic glass multilayers, forming heterogeneous atomic structure in glass/glass interfaces. Multilayers in series 1 have identical bi-layer thickness but different modulation ratios, while those in series 2Â have the modulation ratio of 1/1 but different bi-layer thicknesses. Nanoindentation was subsequently carried out to evaluate the shear banding deformation of the fabricated multilayers. Despite that all the multilayers were only consisted of a single monophase (i.e., CuZr metallic glass), their shear banding deformation behaviors were dependent upon both the modulation ratio and bi-layer thickness. Upon annealing treatment, such dependence nearly vanished in both series of the multilayers. It was proposed that free volume gradient plays a crucial role in the observed unusual shear banding deformation behaviors. Specifically, asymmetric and symmetric free volume gradients in series 1 and 2, respectively, induce different stress states in glass/glass interfacial regions, which may alter the initiation and propagation processes of shear bands in CuZr/CuZr multilayers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 666, 30 November 2018, Pages 48-53
Journal: Thin Solid Films - Volume 666, 30 November 2018, Pages 48-53
نویسندگان
Ma C.F., Huang P., Xu K.W., Wang F., Lu T.J.,