View More View Less
  • 1 Dalian University of Technology Department of Materials Engineering Dalian 116024 People"s Republic of China Dalian 116024 People"s Republic of China
Restricted access

Abstract  

In order to identify the kinetic process of self-heating in DSC experiment for Ti+3Al→TiAl3 reaction, two approaches, linear-fitting approach developed from Semenov"s theory of spontaneous ignition and variation of Friedman method, were carried out with cylindrical Ti-75 at% Al samples. Following these approaches, two identical activation energies are obtained as 16915 kJ mol-1 and 1705 kJ mol-1, respectively. Compared with the activation energies of reactions and interdiffusions between Ti and Al, the possible rate-controlling process of self-heating in DSC experiment for Ti+3Al→TiAl3 reaction is the interdiffusion between Ti and Al through TiAl3-layer.

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Jan 2021 6 0 0
Feb 2021 0 0 0
Mar 2021 1 0 0
Apr 2021 2 0 0
May 2021 1 0 0
Jun 2021 1 0 0
Jul 2021 0 0 0