|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Ultrafine Grained Materials IX
||Hydrogen Generation Behavior of Ultrafine Grained Al Alloys in Pure Water after Processing by High-pressure Torsion
||Fan Zhang, Kaveh Edalati, Makoto Arita, Zenji Horita
|On-Site Speaker (Planned)
Bulk ultrafine-grained Al alloys containing Sn and/or Zn were fabricated through high-pressure torsion (HPT). Hydrogen generation tests were carried out by immersing the alloys into pure water at various temperatures. Whereas cast samples showed little hydrogen production, HPT processing led to high rate and yield of hydrogen production. The distribution of strain and alloying elements in the Al matrix caused by the HPT processing influenced significantly the hydrogen generation rate and yield of the alloys. Lattice defects introduced by the HPT processing also played an important role in activating the Al alloys in pure water for hydrogen generation.