The effects of Ni or Nb additions on the relaxation behavior of Zr55Cu35Al10 metallic glass
Pham Q.H. Chupradit S. Widjaja G. Alhassan M.S. Magizov R. Mustafa Y.F. Surendar A. Kassenov A. Arzehgar Z. Suksatan W.
December 2021Elsevier Ltd
Materials Today Communications
2021#29
Many questions raised in the field of metallic glasses (MGs) are inherently attributed to β relaxation. Therefore, this study investigated the behavior of β relaxation in the Zr55Cu35Al10 MG by differential scanning calorimetry (DSC) under different heating rates. Minor additions of Ni and Nb into the base alloy and pre-annealing process were also carried out to highlight the features of β relaxation in the thermal curves. The results showed that the pre-annealing process led to the appearance of an endothermic peak under the glass transition temperature (Tg), which is a sign of reversible β relaxation in the glassy structure. Moreover, the peak position of the endothermic event was at 0.78 Tg, 0.83 Tg, and 0.87 Tg for Zr55Cu35Al10, (Zr55Cu35Al10)98Ni2, and (Zr55Cu35Al10)98Nb2, respectively, which indicated the crucial role of minor addition on the evolution of β relaxation. In addition, the pre-annealing process from 3 h to 48 h demonstrated that the endothermic peaks in the minor-added samples tended to shift to higher temperatures. Furthermore, structural characterization of MGs revealed various types of short-range and medium-range orders in the Ni- and Nb-added alloys, leading to a different relaxation behavior in the glassy structure.
Glass formation , Metallic glasses , Minor addition , Relaxation
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Department of CAD/CAM/CNC, Faculty of Mechanical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Viet Nam
Department of Occupational Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
Universitas Krisnadwipayana, Jatiwaringin, Indonesia
Division of advanced nano-material technologies, Scientific Research Center, Al-Ayen University, Thi-Qar, Iraq
Kazan Federal University, Russian Federation
Department of pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, Iraq
Saveetha Institute of Medical and Technical Sciences, Chennai, India
Shakarim University of Semey, Semey city, Kazakhstan
Department of Chemistry, Payame Noor University, Ilam, Iran
Faculty of Nursing, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok, 10210, Thailand
Department of CAD/CAM/CNC
Department of Occupational Therapy
Universitas Krisnadwipayana
Division of advanced nano-material technologies
Kazan Federal University
Department of pharmaceutical Chemistry
Saveetha Institute of Medical and Technical Sciences
Shakarim University of Semey
Department of Chemistry
Faculty of Nursing
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