Role of elastostatic loading and cyclic cryogenic treatment on relaxation behavior of Ce-based amorphous alloy

Utiarahman A. Alkaim A.F. Aljeboree A.M. Venediktovna S.Z. Takhirovna C.O. Alexander M. Abilmazhinov Y. Zhu Y.
March 2021 Elsevier Ltd

Materials Today Communications
2021 #26

In this work, Ce₆₅Cu₁₅Al₁₀Ni₈Co₂ bulk metallic glass was annealed at sub-T_g and then elastostatically and cryogenically was loaded and treated, respectively. X-ray Diffraction (XRD) analysis was carried out to show amorphousness of treated alloys, and enthalpy variations and specific heat capacity were evaluated using differential scanning calorimetry (DSC). The results showed that the designed treatment procedure leads to the recovery of relaxation, i.e. rejuvenation, from the relaxed state to the as-cast condition. It is suggested that the generation of free volume and the structural rearrangements, appeared in the abnormal behavior of DSC curves, are responsible for recovery of relaxation. It is also found that the primary elastostatic loading facilitates the subsequent rejuvenation evolution caused by the cryogenic cycling process.

Amorphous alloy , Bulk metallic glass , Relaxation , Stored energy

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Universitas Negeri Gorontalo, Indonesia
University of Babylon, College of Science for Women, Iraq
Department of Service Technologies and Technological Education, Faculty of Management and Social and Technical Services, Minin Nizhny Novgorod State Pedagogical University, Nizhny Novgorod, Russian Federation
Tyumen State Medical University, Tyumen, Russian Federation
Tyumen Industrial University, Tyumen, Russian Federation
Shakarim University of Semey, Semey City, Kazakhstan
School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, China

Universitas Negeri Gorontalo
University of Babylon
Department of Service Technologies and Technological Education
Tyumen State Medical University
Tyumen Industrial University
Shakarim University of Semey
School of Mechanical Engineering

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