Paper Title:
Stabilization of Lattice Defects in HPT-Deformed Palladium Hydride
  Abstract

Recent investigations on palladium hydride (Pd-H) showed, for the first time, evidence of formation of vacancy-hydrogen (Vac-H) clusters during Severe Plastic Deformation (SPD) effected by High Pressure Torsion (HPT). Vacancy concentrations produced in Pd-H by this method are extraordinarily high. DSC-scans show that the thermal stability range of vacancies is extended by about 150K due to trapping of hydrogen leading to the formation of vacancy-hydrogen clusters. Recent experiments give evidence that the mobility of the H atoms and/or the vacancies is conditional for the formation of Vac-H clusters during HPT. Results furthermore indicate defect stabilization by hydrogen trapping not only for vacancy-type defects but also for dislocations and grain boundaries.

  Info
Periodical
Materials Science Forum (Volumes 667-669)
Edited by
Jing Tao Wang, Roberto B. Figueiredo and Terence G. Langdon
Pages
427-432
DOI
10.4028/www.scientific.net/MSF.667-669.427
Citation
M. Bönisch, M. Zehetbauer, M. Krystian, D. Setman, G. Krexner, "Stabilization of Lattice Defects in HPT-Deformed Palladium Hydride", Materials Science Forum, Vols. 667-669, pp. 427-432, 2011
Online since
December 2010
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: R.M. Ribeiro, R.S. de Biasi, D.R. dos Santos, Dílson S. dos Santos
Abstract:Crystallization of the amorphous metallic alloy Fe73.5 Cu1Nb3 Si8.5 B14 was investigated by ferromagnetic resonance (FMR), small angle in...
120
Authors: Shahram Ahmadi, Ali Shokuhfar, Arash Rezaei
Abstract:To respond the need of industries to the new materials with higher specific modulus and lower density than those of the older Al alloys,...
18
Authors: Sergey Kozyukhin, Alexey A. Sherchenkov
Abstract:Phase change memory materials of Ge-Sb-Te system [(GeTe)m(Sb2Te3)n (m : n = 1:1; 1:2; 2:1)] were studied during thermal cycling by...
22
Authors: Katarzyna Bałdys, Grzegorz Dercz, Łukasz Madej
Abstract:The ferromagnetic shape memory alloys (FSMA) are relatively the brand new smart materials group. The most interesting issue connected with...
171
Authors: Thangaraju Shanmugasundaram, Martin Heilmaier, V. Subramanya Sarma, B.S Murty
Chapter 5: Microstructure and Properties
Abstract:Bulk nanostructured Al-4Cu alloy was synthesized by high energy ball milling followed by vacuum hot pressing. Its thermal stability was...
234