Paper Title:
Formation of Ultra Fine Grained Structure during Annealing of Heavily Drawn Metastable Austenitic Steel Wire
  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.

  Info
Periodical
Materials Science Forum (Volumes 558-559)
Edited by
S.-J.L. Kang, M.Y. Huh, N.M. Hwang, H. Homma, K. Ushioda and Y. Ikuhara
Pages
1309-1312
DOI
10.4028/www.scientific.net/MSF.558-559.1309
Citation
T. Fukumaru, T. Inoue, T. Tsuchiyama, S. Takaki, "Formation of Ultra Fine Grained Structure during Annealing of Heavily Drawn Metastable Austenitic Steel Wire", Materials Science Forum, Vols. 558-559, pp. 1309-1312, 2007
Online since
October 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Seung Hyun Lee, Hu Chul Lee
Abstract:The drawability of ferrite-austenite dual phase wires decreased with increasing volume fraction and decreasing mechanical stability of...
78
Authors: Jie Shi, Wen Quan Cao, Han Dong
Abstract:In this study a C-Mn High Strength Low Alloy steel (HSLAs) was processed by quenching and austenite reverted transformation during annealing...
238
Authors: Nobuo Nakada, Hidetoshi Ito, Yoshikazu Matsuoka, Toshihiro Tsuchiyama, Setsuo Takaki
Abstract:Deformation-induced martensite preferentially nucleates at the twin boundary between matrix austenite and deformation twin in 316 type...
99
Authors: Marina Tikhonova, Nariman Enikeev, Ruslan Z. Valiev, Andrey Belyakov, Rustam Kaibyshev
Chapter 4: Microstructure Refinement
Abstract:The formation of submicrocrystalline structure during severe plastic deformation and its effect on mechanical properties of an S304H...
398
Authors: Marina Tikhonova, Iaroslava Shakhova, Rustam Kaibyshev, Andrey Belyakov
Chapter 2: Contributed Papers
Abstract:The formation of nanocrystalline structures and mechanical properties were studied in a nitrogen-bearing 304-type stainless steel subjected...
1957