Superior Properties of Ultra-fine-grained Steels
A description of the improved mechanical properties obtained in ultra-fine-grained steels up to now will be presented in this paper, and some potential applications of these new generation steels will be described. In addition, the principle and implementation of a novel hot rolling process develope...
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doaj-f2f1f0e70ccf47969bf4e66f89d8f3e92020-11-25T01:56:40ZengCTU Central LibraryActa Polytechnica1210-27091805-23632004-01-01443572Superior Properties of Ultra-fine-grained SteelsJ. I. LeinonenA description of the improved mechanical properties obtained in ultra-fine-grained steels up to now will be presented in this paper, and some potential applications of these new generation steels will be described. In addition, the principle and implementation of a novel hot rolling process developed by the author will be introduced. This novel Thermomechanical Nonrecrystallisation Control Process (TNCP) has been shown to give an ultra-fine ferrite (uff) structure with grain sizes of 2 to 3mm in various test steels, thus resulting in super-toughness. Charpy V impact test results suggest that some of these steels could still be tough at temperatures lower than -100 °C. This novel process, TNCP, is one potential candidate for the commercial production of superior ultra-fine-grained steels in the future.https://ojs.cvut.cz/ojs/index.php/ap/article/view/572ultra-fine-grained steelsuper-toughnessyield strengthfatigue strengthTNCP |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
J. I. Leinonen |
spellingShingle |
J. I. Leinonen Superior Properties of Ultra-fine-grained Steels Acta Polytechnica ultra-fine-grained steel super-toughness yield strength fatigue strength TNCP |
author_facet |
J. I. Leinonen |
author_sort |
J. I. Leinonen |
title |
Superior Properties of Ultra-fine-grained Steels |
title_short |
Superior Properties of Ultra-fine-grained Steels |
title_full |
Superior Properties of Ultra-fine-grained Steels |
title_fullStr |
Superior Properties of Ultra-fine-grained Steels |
title_full_unstemmed |
Superior Properties of Ultra-fine-grained Steels |
title_sort |
superior properties of ultra-fine-grained steels |
publisher |
CTU Central Library |
series |
Acta Polytechnica |
issn |
1210-2709 1805-2363 |
publishDate |
2004-01-01 |
description |
A description of the improved mechanical properties obtained in ultra-fine-grained steels up to now will be presented in this paper, and some potential applications of these new generation steels will be described. In addition, the principle and implementation of a novel hot rolling process developed by the author will be introduced. This novel Thermomechanical Nonrecrystallisation Control Process (TNCP) has been shown to give an ultra-fine ferrite (uff) structure with grain sizes of 2 to 3mm in various test steels, thus resulting in super-toughness. Charpy V impact test results suggest that some of these steels could still be tough at temperatures lower than -100 °C. This novel process, TNCP, is one potential candidate for the commercial production of superior ultra-fine-grained steels in the future. |
topic |
ultra-fine-grained steel super-toughness yield strength fatigue strength TNCP |
url |
https://ojs.cvut.cz/ojs/index.php/ap/article/view/572 |
work_keys_str_mv |
AT jileinonen superiorpropertiesofultrafinegrainedsteels |
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