Hardening palladium using hydrogen as a catalytic alloying element

Y. Z. Chen, X. Y. Ma, X. H. Shi, F. Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Work hardening is one of the most widely used methods in strengthening metals by increasing dislocation density, which can be achieved by raising plastic strain and/or suppressing dynamic recovery of the dislocations upon plastic deformation. Based on the analyses on the data reported in our previous work in cold-rolled Pd-H system (Scripta Materialia, Vol. 68 (2013), p. 743), we propose a new strategy in hardening Pd using hydrogen as a catalytic element. It is shown that since the introduction of hydrogen facilitates dislocation formation and increases the dislocation density in Pd upon plastic deformation, subjected to a same deformation level and subsequent removal of hydrogen, Pd can obtain a higher hardness compared to that without hydrogenation before deformation. It is further pointed out that the proposed strategy may, in addition, be applied to other metals, which can dissolve a relatively large amount of hydrogen, e.g. magnesium, nickel and niobium.

Original languageEnglish
Title of host publicationDiffusion in Solids and Liquids X
EditorsA. Öchsner, J.M.P.Q. Delgado, A. Shokuhf, G.E. Murch
PublisherTrans Tech Publications Ltd
Pages262-265
Number of pages4
Volume365
ISBN (Print)9783038355168
DOIs
StatePublished - 2015
Event10th International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2014 - Paris, France
Duration: 23 Jun 201427 Jun 2014

Conference

Conference10th International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2014
Country/TerritoryFrance
CityParis
Period23/06/1427/06/14

Keywords

  • Dislocation
  • Lattice defect
  • Pd-H alloy
  • Plastic deformation
  • Work hardening

Fingerprint

Dive into the research topics of 'Hardening palladium using hydrogen as a catalytic alloying element'. Together they form a unique fingerprint.

Cite this