Formation of ultra fine grained structure during annealing of heavily drawn metastable austenitic steel wire

T. Fukumaru, T. Inoue, T. Tsuchiyama, S. Takaki

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

Abstract

It is well known that the ultra grain refinement can be achieved by sever cold rolling, followed by reversion treatment in metastable austenitic stainless steel plate. In this study, the cold rolling was replaced by cold drawing. This procedure was applied to a metastable austenitic steel (Fe-16Cr-10Ni alloy) thin wire, and then the microstructure development during cold drawing and annealing was investigated. The austenite phase transformed to martensite during the drawing. Vickers hardness of the wire markedly increased with increasing the drawing strain. When the drawing strain reached about 4,5, the wire exhibited martensite single structure and had high hardness of Hv4.4GPa, Annealing of the heavily drawn wire at around 900K for 0.6ks leads to the formation of reversed austenite with the diffusional reversion mechanism, As a result, ultra fine-grained austenitic single structure with the grain size of about 0.6μm was obtained, It was also found that the wire has an excellent combination of a strength and ductility.

Original languageEnglish
Title of host publicationRecrystallization and Grain Growth III - Proceedings of the Third International Conference on Recrystallization and Grain Growth, ReX and GG III
PublisherTrans Tech Publications Ltd
Pages1309-1312
Number of pages4
EditionPART 2
ISBN (Print)087849443X, 9780878494439
DOIs
Publication statusPublished - Jan 1 2007
Event3rd International Conference on Recrystallization and Grain Growth, ReX GG III - Jeju Island, Korea, Republic of
Duration: Jun 10 2007Jun 15 2007

Publication series

NameMaterials Science Forum
NumberPART 2
Volume558-559
ISSN (Print)0255-5476

Other

Other3rd International Conference on Recrystallization and Grain Growth, ReX GG III
CountryKorea, Republic of
CityJeju Island
Period6/10/076/15/07

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Formation of ultra fine grained structure during annealing of heavily drawn metastable austenitic steel wire'. Together they form a unique fingerprint.

Cite this