A repetitive thermomechanical process to produce nano-crystalline in a metastable austenitic steel

Yunqing Ma, Jae Eun Jin, Young-Kook Lee

Research output: Contribution to journalArticle

117 Citations (Scopus)

Abstract

Nano-crystalline grains of about 100 nm were obtained in a metastable austenitic steel by a repetitive thermomechanical process consisting of conventional cold rolling and annealing. The nano-grained austenite was transformed on annealing from the strain-induced martensite, which had formed during cold rolling. The nano-structured austenitic steel exhibits not only high strength (above 1 GPa) but also good elongation (above 30%).

Original languageEnglish
Pages (from-to)1311-1315
Number of pages5
JournalScripta Materialia
Volume52
Issue number12
DOIs
Publication statusPublished - 2005 Jun 1

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cold rolling
Austenitic steel
Cold rolling
steels
Annealing
Crystalline materials
annealing
austenite
high strength
martensite
Martensite
Austenite
elongation
Elongation
austenitic steel

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Metals and Alloys

Cite this

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A repetitive thermomechanical process to produce nano-crystalline in a metastable austenitic steel. / Ma, Yunqing; Jin, Jae Eun; Lee, Young-Kook.

In: Scripta Materialia, Vol. 52, No. 12, 01.06.2005, p. 1311-1315.

Research output: Contribution to journalArticle

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AB - Nano-crystalline grains of about 100 nm were obtained in a metastable austenitic steel by a repetitive thermomechanical process consisting of conventional cold rolling and annealing. The nano-grained austenite was transformed on annealing from the strain-induced martensite, which had formed during cold rolling. The nano-structured austenitic steel exhibits not only high strength (above 1 GPa) but also good elongation (above 30%).

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