Effect of surface mechanical attrition treatment on micro-mechanical properties of ZrCuAlNi bulk metallic glass
Shayakhmetov Y. Vorobeva A. Burlankov S. Bogonosov K. Fomin A. Goncharov A. Krasnikov S. Nikolaeva S. Ovsyannikova A. Zekiy A.O. Pandey M.
2021Universidade Federal de Sao Carlos
Materials Research
2021#24Issue 5
In this work, surface mechanical attrition treatment (SMAT) was employed to rejuvenate ZrCuAlNi bulk metallic glass (BMG) plate. Differential scanning calorimetry (DSC), atomic force microscopy (AFM) and nanoindentation analyses were carried out to evaluate stored energy and micro-mechanical properties of treated BMGs. According to DSC results, 10 min SMAT process increased the stored energy of BMG plates up to 50%. AFM analysis showed that the structural rejuvenation occurred in the bulk of samples and just a slight rejuvenation gradient was detected from the front to the back side of BMG plates. Nanoindentation analysis indicated that the structural rejuvenation is consistent with anelastic strain induced under the SMAT process. It was also found that an optimum treatment time is needed for maximum rejuvenation in the BMGs. This event is due to the fact that the glassy structure is able to store a critical anelastic strain, which leads to a saturated condition in rejuvenation.
Bulk metallic glass , Heterogeneity , Nanoindentation , Rejuvenation , Relaxation
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Shakarim University of Semey, Semey, Kazakhstan
K.G. Razumovsky Moscow State University of Technologies and Management (The First Cossack University), Moscow, 109004, Russian Federation
Plekhanov Russian University of Economics, Moscow, 117997, Russian Federation
National Research Mordovia State University, Mordovia, 430005, Russian Federation
MIREA - Russian Technological University, Moscow, 119454, Russian Federation
Sechenov First Moscow State Medical University, Moscow, 119991, Russian Federation
Indian Institute of Technology Heydarabad, Department of Materials Science and Metallurgical Engineering, Heydarabad, 502258, India
Shakarim University of Semey
K.G. Razumovsky Moscow State University of Technologies and Management (The First Cossack University)
Plekhanov Russian University of Economics
National Research Mordovia State University
MIREA - Russian Technological University
Sechenov First Moscow State Medical University
Indian Institute of Technology Heydarabad
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