Resilience and ductility of Oxy-fuel HAZ cut

Cutting processes affect the material to a deeper or shallower attached-to-the-cut zone. Its microstructure, its hardness and mechanical properties are changed. Also the cutting process introduces surface roughness and residual stresses. In most cases it is recommended to remove this region by gri...

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Main Authors: A. Martín-Meizoso, J. Aldazabal, J.L. Pedrejón, S. Moreno
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2014-10-01
Series:Frattura ed Integrità Strutturale
Subjects:
Online Access:http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_3.pdf
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spelling doaj-a233eabefcd944b2a1afc9280142b8f42020-11-24T23:54:36ZengGruppo Italiano FratturaFrattura ed Integrità Strutturale1971-89931971-89932014-10-01830142210.3221/IGF-ESIS.30.03 Resilience and ductility of Oxy-fuel HAZ cut A. Martín-Meizoso, 0J. Aldazabal, 1J.L. Pedrejón 2S. Moreno 3CEIT and Tecnun (University of Navarra) CEIT and Tecnun (University of Navarra) CEIT and Tecnun (University of Navarra) Tecnun (University of Navarra) Cutting processes affect the material to a deeper or shallower attached-to-the-cut zone. Its microstructure, its hardness and mechanical properties are changed. Also the cutting process introduces surface roughness and residual stresses. In most cases it is recommended to remove this region by grinding, in order to keep a smoother surface, free from the above mentioned effects. This work presents the characterization results of the Heat Affected Zone (HAZ) of a steel plate of grade S460M, with a thickness of 25 mm, cut by flame oxyfuel gas cutting. The HAZ microstructure is observed (and the depth of the HAZ measured), the hardness profile and the stress vs. strain curves until fracture are measured by testing micro-tensile samples, instrumented with strain gauges. Micro-Tensile specimens are 200 microns in thickness and were obtained from layers of the HAZ at different distances from the oxy-fuel cut. The obtained stress-strain curves are compared with the hardness measurements and the observed metallography.http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_3.pdfCutting; HAZOxy-fuelsteelCut Affected Zone (CAZ)
collection DOAJ
language English
format Article
sources DOAJ
author A. Martín-Meizoso,
J. Aldazabal,
J.L. Pedrejón
S. Moreno
spellingShingle A. Martín-Meizoso,
J. Aldazabal,
J.L. Pedrejón
S. Moreno
Resilience and ductility of Oxy-fuel HAZ cut
Frattura ed Integrità Strutturale
Cutting; HAZ
Oxy-fuel
steel
Cut Affected Zone (CAZ)
author_facet A. Martín-Meizoso,
J. Aldazabal,
J.L. Pedrejón
S. Moreno
author_sort A. Martín-Meizoso,
title Resilience and ductility of Oxy-fuel HAZ cut
title_short Resilience and ductility of Oxy-fuel HAZ cut
title_full Resilience and ductility of Oxy-fuel HAZ cut
title_fullStr Resilience and ductility of Oxy-fuel HAZ cut
title_full_unstemmed Resilience and ductility of Oxy-fuel HAZ cut
title_sort resilience and ductility of oxy-fuel haz cut
publisher Gruppo Italiano Frattura
series Frattura ed Integrità Strutturale
issn 1971-8993
1971-8993
publishDate 2014-10-01
description Cutting processes affect the material to a deeper or shallower attached-to-the-cut zone. Its microstructure, its hardness and mechanical properties are changed. Also the cutting process introduces surface roughness and residual stresses. In most cases it is recommended to remove this region by grinding, in order to keep a smoother surface, free from the above mentioned effects. This work presents the characterization results of the Heat Affected Zone (HAZ) of a steel plate of grade S460M, with a thickness of 25 mm, cut by flame oxyfuel gas cutting. The HAZ microstructure is observed (and the depth of the HAZ measured), the hardness profile and the stress vs. strain curves until fracture are measured by testing micro-tensile samples, instrumented with strain gauges. Micro-Tensile specimens are 200 microns in thickness and were obtained from layers of the HAZ at different distances from the oxy-fuel cut. The obtained stress-strain curves are compared with the hardness measurements and the observed metallography.
topic Cutting; HAZ
Oxy-fuel
steel
Cut Affected Zone (CAZ)
url http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_3.pdf
work_keys_str_mv AT amartinmeizoso resilienceandductilityofoxyfuelhazcut
AT jaldazabal resilienceandductilityofoxyfuelhazcut
AT jlpedrejon resilienceandductilityofoxyfuelhazcut
AT smoreno resilienceandductilityofoxyfuelhazcut
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