Twin-induced grain boundary engineering for 316 austenitic stainless steel

M. Michiuchi, H. Kokawa, Z. J. Wang, Y. S. Sato, K. Sakai

Research output: Contribution to journalArticlepeer-review

214 Citations (Scopus)

Abstract

By twin-induced grain boundary engineering utilizing optimized one-step thermomechanical processing with 3% pre-strain and subsequent annealing at 1240 K for 72 h, a very high frequency of coincidence site lattice (CSL) boundaries (86%) was introduced into type 316 austenitic stainless steel. The resulting steel showed a remarkably high resistance to intergranular corrosion during ferric sulfate-sulfuric acid tests. A CSL frequency of over 82% may result in a very low percolation probability of random boundary networks in per-threshold and a remarkable suppression of intergranular deterioration during twin-induced grain boundary engineering of austenitic stainless steels.

Original languageEnglish
Pages (from-to)5179-5184
Number of pages6
JournalActa Materialia
Volume54
Issue number19
DOIs
Publication statusPublished - 2006 Nov

Keywords

  • Annealing
  • Austenitic steels
  • Corrosion
  • Grain boundary engineering
  • Percolation
  • Thermomechanical processing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

Fingerprint Dive into the research topics of 'Twin-induced grain boundary engineering for 316 austenitic stainless steel'. Together they form a unique fingerprint.

Cite this