Effects of laser processing parameters on grain boundary character distribution and corrosion resistance of austenite stainless steel

Sen Yang, Hiroyuki Kokawa, Zhanjie Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In order to modify grain boundary character distribution (GBCD) and to improve intergranualr corrosion (IGC) resistance of 304 stainless steel, laser surface remelting experiments were conducted on 304 stainless steel using a 2kW CW Nd: YAG laser, and the effects of laser processing parameters on GBCD and corrosion resistance were investigated in detail under the optimal annealing condition (1220K 28h). The experimental results showed that combination of laser surface remelting and the following annealing treatment could change the GBCD remarkably and improve the IGC resistance of 304 stainless steel. However, there are no obvious effects of laser processing parameters on the final depth of the processed zone, although the depth of the molten pool increases with the increase of the laser output power or the decrease of the scanning velocity, and the subsequent GBCD and corrosion resistance.

Original languageEnglish
Title of host publicationSelected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
PublisherTrans Tech Publications Ltd
Pages2473-2476
Number of pages4
EditionPART 3
ISBN (Print)0878494626, 9780878494620
DOIs
Publication statusPublished - 2007 Jan 1
Event6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6 - Jeju, Korea, Republic of
Duration: 2007 Nov 52007 Nov 9

Publication series

NameMaterials Science Forum
NumberPART 3
Volume561-565
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
CountryKorea, Republic of
CityJeju
Period07/11/507/11/9

Keywords

  • Austenite stainless steel
  • Grain boundary engineering
  • Laser surface remelting

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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