Paper Title:
Low Carbon Low Alloy Submicro-Steel with Nano-Precipitation
  Abstract

In the present work, low carbon low alloy submicro-steel sheet has been developed successfully by severe warm-rolling (SWR) at 500 °C through a single pass. The result shows submicro-structure can be fabricated by severe rolling. The formation of the submicro-structure is attributed to the grain refinement mechanism induced by the severe plastic deformation (SPD). The refinement involves the cutting and subdividing of the original micro-crystals into ultrafine grains by dense dislocation arrays. To a certain extent, dynamic recrystallization in ferrite during SWR also seems to contribute to the formation of the submicro-structure. The thermal stability of the submicro-steel was investigated by annealing the steel at different temperatures. The investigation indicated that the submicro-steel can be subjected to annealing at 550°C without apparent grain growth. The unusually high thermal stability can be attributed to the pining effect of numerous uniformly distributed nano-precipitates in the steel. The sizes of the nano-precipitates belong to two different orders. The average diameter of the large precipitates is about 30 nm and the smaller one less than 10 nm.

  Info
Periodical
Materials Science Forum (Volumes 503-504)
Edited by
Zenji Horita
Pages
511-514
DOI
10.4028/www.scientific.net/MSF.503-504.511
Citation
B. Shi, H. W. Song, J. B. Zhang, H.-Q. Cao, X. F. Wang, "Low Carbon Low Alloy Submicro-Steel with Nano-Precipitation", Materials Science Forum, Vols. 503-504, pp. 511-514, 2006
Online since
January 2006
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: Dalibor Vojtěch, Alena Michalcová
Abstract:Nearly equi-atomic Ni-Ti alloys (nitinol) show shape memory behavior, superelasticity, high strength, excellent corrosion resistance and...
471
Authors: Hiba Azzeddine, Djamel Bradai
Chapter 3: Deformation and Annealing
Abstract:The texture and microstructure after hot rolling and annealing of WE54 alloy was investigated using X-ray techniques and optical microscopy....
453
Authors: Jing Yuan Li, Jia Fei Wang, Dong Liang Zhang, Xin Kui Wang
Abstract:The microstructure, texture and basic stamping properties of AZ31 magnesium sheet are studied in this paper with optical microscopy (OM),...
101
Authors: Ranjit Kumar Ray, P. Ghosh
Chapter 1: Keynotes
Abstract:Interstitial free high strength steels (IFHS) are widely used in the automobile sector due to their high strength and excellent formability....
34
Authors: Hong Mei Zhang, Li Feng Qiao
Chapter 1: Materials Engineering. Technologies and Processing
Abstract:The hot rolling, cold rolling and simulative continuous annealing experiments were carried out in the laboratory on the base of new type SFG...
613