Effect of hydrogen charging on microstructure morphology of warm rolled low carbon steel

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

Abstract

Warm rolled deformation is one of deformation technique to improve the strength of steels through the refining grain size of ferritic microstructure. In application, low carbon steel which used in structural industry need some protection against corrosion attack, cathodic protection is usually applied combining with coating. Cathodic protection creates reduction reaction which produces hydrogen, and the hydrogen atom may diffuse into the crystal lattice lead to the Hydrogen Induced Cracking. The present study is to observe the morphology of microstructure influenced by hydrogen charging as the source of hydrogen which attacks the steel surface, and observed by Optical Microscopy and Scanning Electron Microscopy. After warm rolling of 650°C and 35% deformation, ferrite grain size is smaller than bulk material and the hardness value increasing. After tensile test of hydrogen charged steel found the ductile fracture, it means the smaller the ferrite grains size, the resistance of hydrogen attack is increase.

Original languageEnglish
Title of host publicationMaterials Processing Technology
Pages1076-1080
Number of pages5
DOIs
Publication statusPublished - 14 Mar 2012
Event2nd International Conference on Advances in Materials and Manufacturing, ICAMMP 2011 - Guilin, China
Duration: 16 Dec 201118 Dec 2011

Publication series

NameAdvanced Materials Research
Volume418-420
ISSN (Print)1022-6680

Conference

Conference2nd International Conference on Advances in Materials and Manufacturing, ICAMMP 2011
CountryChina
CityGuilin
Period16/12/1118/12/11

Keywords

  • Deformation
  • Hydrogen charging
  • Low carbon steel
  • Microstructure morphology
  • Warm rolling

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