English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Improving the hydrogen embrittlement resistance of a selective laser melted high-entropy alloy via modifying the cellular structures

Fu, Z., Yang, B., Gan, K., Yan, D., Li, Z., Gou, G., et al. (2021). Improving the hydrogen embrittlement resistance of a selective laser melted high-entropy alloy via modifying the cellular structures. Corrosion Science, 190: 109695. doi:10.1016/j.corsci.2021.109695.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files

Locators

show
hide
Locator:
Link (Any fulltext)
Description:
-

Creators

show
hide
 Creators:
Fu, Zhenghong1, Author
Yang, Bangjian2, Author
Gan, Kefu3, Author              
Yan, Dingshun4, Author              
Li, Zhiming3, 5, Author              
Gou, Guoqing2, Author
Chen, Hui2, Author
Wang, Zhirui6, Author
Affiliations:
1School of Materials Science and Engineering, Central South University, Changsha, 410083, China, ou_persistent22              
2School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China, ou_persistent22              
3School of Materials Science and Engineering, Central South University, Changsha 410083, China, ou_persistent22              
4State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering, Central South University, Changsha, 410083, China, ou_persistent22              
5High-Entropy Alloys, Project Groups, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_3010672              
6Department of Materials Science and Engineering, University of Toronto, Ontario, Toronto, M3S 5E4, Canada, ou_persistent22              

Content

show
hide
Free keywords: Annealing; Cellular automata; Chromium alloys; Cobalt alloys; Entropy; Hydrogen; Hydrogen embrittlement; Iron alloys; Manganese alloys; Melting; Plasticity; Selective laser melting; Strain rate; Tensile testing, Cellular structure; Crack initiation and propagation; Dislocations densities; Electrochemical hydrogen charging; Embrittlement resistance; High entropy alloys; Local plasticity; Selective laser melting; Slow strain rate tensile test; Twin cell, High-entropy alloys
 Abstract: We demonstrate that modifying the cellular structures by well-controlled annealing can effectively improve the hydrogen embrittlement (HE) resistance of selective laser melting (SLM) processed alloys. Investigations on both as-SLM processed and annealed prototype CoCrFeMnNi high-entropy alloy samples suggest that annealing preserved the cellular structures while effectively reduced the dislocation densities. This slightly reduced the strength but significantly increased the ductility and HE resistance upon slow strain rate tensile tests (1 × 10−5 s-1) under in situ electrochemical hydrogen charging. The crack initiation and propagation were delayed by hydrogen-enhanced local plasticity with the formation of nano-twins and dislocation cells in the modified structures. © 2021 Elsevier Ltd

Details

show
hide
Language(s):
 Dates: 2021-09
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.corsci.2021.109695
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Corrosion Science
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Elsevier Ltd
Pages: - Volume / Issue: 190 Sequence Number: 109695 Start / End Page: - Identifier: ISSN: 0010938X