Paper Title:
Structural Relaxation Process in CuHfTi Amorphous Alloys
  Abstract

The aim of this research is to clarify a quantitative evaluation in the structural relaxation processes focusing on the activation energy in Cu based amorphous alloys. The activation energy for structural relaxation process in a metal type amorphous CuHfTi ternary alloys, with cross sections of typically 0.03 mm x 2.0 mm, prepared by chill-block melt spinning has been investigated by Differential Scanning Calorimetry (DSC) with a cyclically heating technique. Activation energies for structural relaxation with a spatial quantity in amorphous materials have been discussed by use of a relaxed ratio function that depends on annealing temperature and time. In the present work, the distributions for the Activation Energy Spectrum (AES) were observed almost 152 kJmol-1 (1.58 eV). Another result has been also established that the “reversible” AES model energy distribution though the cyclically structure relaxation occurs even in amorphous Cu60Hf20Ti20 alloy.

  Info
Periodical
Defect and Diffusion Forum (Volumes 283-286)
Edited by
Andreas Öchsner, Graeme E. Murch and Ali Shokuhfar
Pages
533-538
DOI
10.4028/www.scientific.net/DDF.283-286.533
Citation
K. Yamada, N. Shinagawa, M. Sogame, I.A. Figueroa, H. A. Davies, I. Todd, "Structural Relaxation Process in CuHfTi Amorphous Alloys", Defect and Diffusion Forum, Vols. 283-286, pp. 533-538, 2009
Online since
March 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ming Xiang Pan, Wei Hua Wang, Yong Hu, De Qian Zhao, Yan Hui Zhao, Tatsuya Okada, W. Utsumi
53
Authors: Yoon S. Oh, Jung G. Lee, Choong Nyun Paul Kim, Nack J. Kim
Abstract:Solidification behavior of two Fe-base amorphous alloys during twin-roll strip casting has been investigated in the present study....
433
Authors: Victor I. Kolomytsev, M. Babanly, Alexandre Pasko, A.P. Shpak, Tetjana Sych, P. Ochin, Philippe Vermaut, Richard Portier, Eduard Cesari, D. Rafaja
Abstract:A series of multielementary AB-type shape memory alloys, quaternary (Ti,Hf)50(Ni,Cu)50 and quinary (Ti,Zr,Hf)50(Ni,Cu)50, have been produced...
113
Authors: Ge Wang, Chun Zhang, Yu Ying Zhu, Zhi Gang Chao, Qiang Li
Abstract:Ti50Fe45Sn5 amorphous alloys powder was prepared by mechanical alloying (MA) in a high-energy planetary ball mill. The non-crystallization...
104
Authors: S. Ahmadi, H.R. Shahverdi, S.S. Saremi
Chapter 14: Nanomaterials and Nanomanufacturing
Abstract:Nano- crystallization of Fe55Cr18Mo7B16C4 bulk amorphous alloy has been analyzed by X-...
3858