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Title:Tensile test models for low-carbon microalloyed steels with high niobium contents
Authors:ID Pérez-Bahillo, Marcos (Author)
ID Gubeljak, Nenad (Author)
ID Porter, David A. (Author)
ID López, Beatriz (Author)
ID Predan, Jožef (Author)
ID Martín-Meizoso, Antonio (Author)
Files:.pdf Tehnicki_vjesnik_2011_Perez-Bahillo_et_al._Tensile_test_models_for_low-carbon_microalloyed_steels_with_high_niobium_contents.pdf (2,63 MB)
MD5: A83D52723BA90C29E84419E12078DB4D
PID: 20.500.12556/dkum/fe6221f2-5140-4c5c-b542-7800704bd66d
 
URL http://hrcak.srce.hr/75404
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:In the present investigation, the effect of both: rolling parameters (2 reduction rates and 3 cooling rates) and chemical elements such as: C, Mn, Nb,Ti, Mo, Ni, Cr, Cu and B, has been studied in relation to strength properties in low-carbon microalloyed steels with high niobium contents (up to 0,12 wt. % Nb). For this purpose, an experimental set-up was designed based on an intelligent design of experiments (DoE), resulting in 26 casts (laboratory casts).Acombination of metallography, Electron Back-Scattered Diffraction (EBSD) and tensile tests have been performed to study how processing parameters and chemical composition affect the strength. The results, where the proof stress, tensile strength, uniform and fracture elongations are the response variables, have been analysed statistically by means of multiple linear regression technique, leading to response equations. From the results, it was found that the effectiveness of niobium increasing the strength is reduced as carbon content increases.
Keywords:microalloyed steels, mechanical properties, niobium
Publication status:Published
Publication version:Version of Record
Year of publishing:2011
Number of pages:str. 561-569
Numbering:Letn. 18, št. 4
PID:20.500.12556/DKUM-26928 New window
ISSN:1330-3651
UDC:620.172.18:669.15-194
ISSN on article:1330-3651
COBISS.SI-ID:15654934 New window
NUK URN:URN:SI:UM:DK:9Q5RQP94
Publication date in DKUM:01.06.2012
Views:2342
Downloads:111
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
PÉREZ-BAHILLO, Marcos, GUBELJAK, Nenad, PORTER, David A., LÓPEZ, Beatriz, PREDAN, Jožef and MARTÍN-MEIZOSO, Antonio, 2011, Tensile test models for low-carbon microalloyed steels with high niobium contents. Tehnički vjesnik : znanstveno-stručni časopis tehničkih fakulteta Sveučilišta u Osijeku [online]. 2011. Vol. 18, no. 4, p. 561–569. [Accessed 23 March 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=26928
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Record is a part of a journal

Title:Tehnički vjesnik : znanstveno-stručni časopis tehničkih fakulteta Sveučilišta u Osijeku
Shortened title:Teh. vjesn. - Stroj. fak.
Publisher:Strojarski fakultet, Elektrotehnički fakultet, Građevinski fakultet
ISSN:1330-3651
COBISS.SI-ID:15346181 New window

Document is financed by a project

Funder:Other - Other funder or multiple funders
Project number:RFSR- CT- 2005-0007
Name:A novel, high-performance, economic steel concept for linepipe and general structural use
Acronym:HIPERC

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:01.06.2012

Secondary language

Language:Croatian
Title:Modeli za ispitivanje rastezne čvrstoće nisko-ugljičnih mikrolegiranih čelika s visokim sadržajem niobija
Abstract:U ovom se istraživanju proučavao utjecaj parametara valjanja (2 redukcijske brzine i 3 brzine hlađenja) i kemijskih elemenata kao što su: C, Mn, Nb, Ti, Mo, Ni, Cr, CuiB na svojstva čvrstoće niskougljičnih mikrolegiranih čelika s visokim sadržajem niobija (do 0,12 wt.%Nb). U tu je svrhu konstruiran pokusni uređaj zasnovan na inteligentnom dizajnu eksperimenata (DoE), rezultirajući s 26 odljevaka (laboratorijskih odljevaka). Kombinacijom metalografije, Electron Back-Scattered Diffraction (EBSD) i vlačnih ispitivanja proučavalo se kako obradni parametri i kemijski sastav djeluju na čvrstoću. Kada je ispitivanje rezultiralo naprezanjem, rasteznom čvrstoćom, jednoličnom deformacijom ili deformacijom zbog loma, rezultati su statistički analizirani tehnikom višestruke linearne regresije, koja je dovela do odgovarajućih jednadžbi. Ustanovilo se da se učinak niobija na povećanje čvrstoće smanjuje kako se povećava sadržaj ugljika.
Keywords:mikrolegirana jekla, mehanske lastnosti, niobij


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