Paper Title:
Diffusion of Zinc in Two-Phase Mg-Al Alloy
  Abstract

Coefficient of 65Zn heterodiffusion in Mg17Al12 intermetallic and in eutectic alloy Mg - 33.4 wt. % Al was measured in the temperature region 598 – 698 K using serial sectioning and residual activity methods. Diffusion coefficient of 65Zn in the intermetallic can be written as DI = 1.7 × 10-2 m2 s-1 exp (-155.0 kJ mol-1 / RT). At temperatures T ≥ 648 K, where the mean diffusion path was greater than the mean interlamellar distance in the eutectic, the effective diffusion coefficient Def = 2.7 × 10-2 m2 s-1 exp (-155.1 kJ mol-1 / RT) was evaluated. At two lower temperatures, the diffusion coefficients 65Zn in interphase boundaries were estimated: Db (623 K) = 1.6 × 10-12 m2 s-1 and Db (598 K) = 4.4 × 10-13 m2 s-1.

  Info
Periodical
Edited by
J. Čermák and I. Stloukal
Pages
189-194
DOI
10.4028/www.scientific.net/DDF.263.189
Citation
I. Stloukal, J. Čermák, "Diffusion of Zinc in Two-Phase Mg-Al Alloy", Defect and Diffusion Forum, Vol. 263, pp. 189-194, 2007
Online since
March 2007
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: Xin Li, Bin Jiang, Hong Yang, Xiang Sheng Xia, Jia Hong Dai, Fu Sheng Pan
Symposium O: Advanced Magnesium Alloys and Application
Abstract:The solid–liquid diffusion between Mg and Mg-10 at.% Ca alloy was studied at a temperature range of 570°C to 630°C for 10, 20, 30min,...
418
Authors: Da Wei Han, Fang Liu, Dan Jia, Feng Qi, Hong Cai Yang, Wen Ru Sun, Zhuang Qi Hu
Symposium P: Superalloys
Abstract:The effect of Mo addition on the grain growth of Inconel 718 alloy has been investigated. It was revealed that δ phase was precipitated at...
594
Authors: Dan Dan Liu, Jochen Fiebig, Martin Peterlechner, Simon Trubel, Matthias Wegner, Yong Du, Zhan Peng Jin, Gerhard Wilde, S. Divinsky
Chapter 4: Short-Circuit Diffusion
Abstract:The radiotracer technique was used to measure the grain boundary diffusion of 44Ti and 63Ni in slightly Ni-rich...
137
Authors: Vladimir V. Popov, A.V. Sergeev
Chapter II
Abstract:The classical Fisher model of grain-boundary diffusion and the traditional method of determination of grain-boundary diffusion parameters by...
21