Assessment of the hardness of S890QL material welded joins

The need to reduce the mass of products manufactured by welding processes has led to the replacement of the basic steel materials, such as construction steels, by steels with high mechanical properties, such as hard and brittle steels. The increase of the mechanical properties but also of the all...

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Main Authors: Adrian Florea, Corneliu Rontescu, Ana-Maria Bogatu, Dumitru-Titi Cicic
Format: Article
Language:English
Published: THOT Publishing House 2024-11-01
Series:Journal of Research and Innovation for Sustainable Society
Subjects:
Online Access:https://jriss.4ader.ro/wp-content/uploads/2024/11/13.-Adrian-Florea-Corneliu-Rontescu-Ana-Maria-Bogatu-Dumitru-Titi-Cicic-Assessment-of-the-hardness-of-S890QL-material-welded-joins%E2%80%8B.pdf
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author Adrian Florea
Corneliu Rontescu
Ana-Maria Bogatu
Dumitru-Titi Cicic
author_facet Adrian Florea
Corneliu Rontescu
Ana-Maria Bogatu
Dumitru-Titi Cicic
author_sort Adrian Florea
collection DOAJ
description The need to reduce the mass of products manufactured by welding processes has led to the replacement of the basic steel materials, such as construction steels, by steels with high mechanical properties, such as hard and brittle steels. The increase of the mechanical properties but also of the alloying degree has led to a decrease in the weldability of these materials. The present paper presents the analysis of the welding possibilities with the gas metal arc welding process of S890QL steel. The paper analyzes the hardness values obtained in the case of welding technologies using two preheating temperature values (100 and 1500C) in the context of the variation of the cooling time between 800 and 5000C. The values resulting from the hardness measurements performed indicate that no significant changes in hardness occur in the characteristic areas of the weld bead, the material not being subjected to additional hardening processes. To analyze the weldability of the S890QL material, the results presented in the paper must be correlated with the results of the mechanical tests performed on the welded joints.
format Article
id doaj-art-f7aa7c59fdfc4910aa304708fe04e180
institution Kabale University
issn 2668-0416
language English
publishDate 2024-11-01
publisher THOT Publishing House
record_format Article
series Journal of Research and Innovation for Sustainable Society
spelling doaj-art-f7aa7c59fdfc4910aa304708fe04e1802025-01-07T15:14:01ZengTHOT Publishing HouseJournal of Research and Innovation for Sustainable Society2668-04162024-11-016211912510.33727/JRISS.2024.2.13:119-125Assessment of the hardness of S890QL material welded joinsAdrian Florea0Corneliu Rontescu1https://orcid.org/0000-0002-4826-4131Ana-Maria Bogatu2https://orcid.org/0000-0001-6336-0095Dumitru-Titi Cicic3https://orcid.org/0000-0003-4758-7235National University of Science and Technology POLITEHNICA BucharestNational University of Science and Technology Polytechnic BucharestNational University of Science and Technology Polytechnic BucharestNational University of Science and Technology Polytechnic BucharestThe need to reduce the mass of products manufactured by welding processes has led to the replacement of the basic steel materials, such as construction steels, by steels with high mechanical properties, such as hard and brittle steels. The increase of the mechanical properties but also of the alloying degree has led to a decrease in the weldability of these materials. The present paper presents the analysis of the welding possibilities with the gas metal arc welding process of S890QL steel. The paper analyzes the hardness values obtained in the case of welding technologies using two preheating temperature values (100 and 1500C) in the context of the variation of the cooling time between 800 and 5000C. The values resulting from the hardness measurements performed indicate that no significant changes in hardness occur in the characteristic areas of the weld bead, the material not being subjected to additional hardening processes. To analyze the weldability of the S890QL material, the results presented in the paper must be correlated with the results of the mechanical tests performed on the welded joints. https://jriss.4ader.ro/wp-content/uploads/2024/11/13.-Adrian-Florea-Corneliu-Rontescu-Ana-Maria-Bogatu-Dumitru-Titi-Cicic-Assessment-of-the-hardness-of-S890QL-material-welded-joins%E2%80%8B.pdfhigh strength steelweldabilityhardnesspreheating temperaturecooling time
spellingShingle Adrian Florea
Corneliu Rontescu
Ana-Maria Bogatu
Dumitru-Titi Cicic
Assessment of the hardness of S890QL material welded joins
Journal of Research and Innovation for Sustainable Society
high strength steel
weldability
hardness
preheating temperature
cooling time
title Assessment of the hardness of S890QL material welded joins
title_full Assessment of the hardness of S890QL material welded joins
title_fullStr Assessment of the hardness of S890QL material welded joins
title_full_unstemmed Assessment of the hardness of S890QL material welded joins
title_short Assessment of the hardness of S890QL material welded joins
title_sort assessment of the hardness of s890ql material welded joins
topic high strength steel
weldability
hardness
preheating temperature
cooling time
url https://jriss.4ader.ro/wp-content/uploads/2024/11/13.-Adrian-Florea-Corneliu-Rontescu-Ana-Maria-Bogatu-Dumitru-Titi-Cicic-Assessment-of-the-hardness-of-S890QL-material-welded-joins%E2%80%8B.pdf
work_keys_str_mv AT adrianflorea assessmentofthehardnessofs890qlmaterialweldedjoins
AT corneliurontescu assessmentofthehardnessofs890qlmaterialweldedjoins
AT anamariabogatu assessmentofthehardnessofs890qlmaterialweldedjoins
AT dumitrutiticicic assessmentofthehardnessofs890qlmaterialweldedjoins