Modelling of Microstructure Evolution during Recrystallization Controlled Rolling.

Siwecki, Tadeusz

doi:10.2355/isijinternational.32.368

Cited by 67 publications

(46 citation statements)

References 1 publication

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“…A large volume of work was spent investigating the effect of niobium on the recrystallization and growth of austenite grains, 5,6,9,10 and it was found that a minor addition of niobium to the steel was sufficient to inhibit the static recrystallization of austenite and to achieve the final microstructure. 11 Similar effects were observed in titanium, and vanadium steels were found generally less marked.…”

Section: Introductionmentioning

confidence: 99%

Effect of the addition of niobium and aluminium on the microstructures and mechanical properties of micro-alloyed PM steels

Gündüz¹,

Erden²,

Karabulut³

et al. 2016

Mater. Tehnol.

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In this work, the effects of the addition of Nb and Al on the microstructures and tensile behaviours of micro-alloyed powder metallurgy (PM) steels were investigated. The microstructure of the micro-alloyed PM steels was examined by light microscope, SEM, XRD, XRF and EDS. The results indicated that the addition of (0.1, 0.15 or 0.2) % of Nb-Al increases the yield strength (YS) and the ultimate tensile strength (UTS) of the PM sintered steels. Elongation also tends to improve with an increasing Nb and Al content. In addition, the Nb and Al limit the grain growth during austenitization. Keywords: powder metallurgy, micro-alloyed steels, microstructure V delu je bil preiskovan vpliv dodatka Nb in Al na mikrostrukturo in na natezno trdnost mikrolegiranih PM jekel, izdelanih iz prahov. Mikrostruktura mikrolegiranih PM jekel je bila preiskovana s svetlobnim mikroskopom ter s SEM, XRD, XRF in EDS. Rezultati so pokazali, da dodatek (0,1, 0,15 ali 0,2) % Nb-Al pove~a mejo plasti~nosti (YS) in natezno trdnost (UTS) sintranih PM jekel. Tudi raztezek se izbolj{a s pove~ano vsebnostjo Nb in Al. Ugotovljeno je {e, da dodatek Nb in Al omejuje rast zrn med avstenitizacijo.

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Section: Introductionmentioning

confidence: 99%

Effect of the addition of niobium and aluminium on the microstructures and mechanical properties of micro-alloyed PM steels

Gündüz¹,

Erden²,

Karabulut³

et al. 2016

Mater. Tehnol.

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“…5) as a function of l/T, the slope being equal to QIR. While the graphic representation for the low alloy steels (Fig.…”

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confidence: 99%

Influence of Alloying Elements in Solution on Static Recrystallization Kinetics of Hot Deformed Steels.

Medina

Mancilla

1996

ISIJ International

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“…Nos resultados dos ensaios interrompidos da simulação 4 (Figura 4b), verifica-se um refinamento da microestrutura quando comparada com os resultados da simulação 1. Neste caso, o refinamento da microestrutura é atingido pela ocorrência da recristalização estática [7]. O refinamento dos grãos também pode ser observado por meio dos resultados obtidos das simulações 5 e 6, Figuras 4c e 4d respectivamente.…”

Section: Tensão Equivalente X Deformação Equivalenteunclassified

Efeito Da Temperatura De Deformação a Quente Na Recristalização E Na Textura De Um Aço Inoxidável Ferrítico Aisi 430 Estabilizado Ao Nióbio

Braga¹,

Escobar²,

Oliveira³

et al. 2018

ABM Proceedings

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ResumoO efeito da temperatura de deformação a quente na textura cristalográfica de um aço inoxidável ferrítico AISI 430 estabilizado ao Nióbio foi estudado por ensaios de torção a quente. A laminação de acabamento em laminador Steckel foi simulada utilizando diferentes faixas de temperatura, buscando promover o amaciamento por recristalização. Após cada ensaio, as amostras foram temperadas até a temperatura ambiente objetivando a análise das microestruturas geradas. Foram também realizados ensaios de torção interrompidos visando avaliar a ocorrência da recristalização entre passes. A técnica de EBSD foi utilizada para analisar a microestrutura das amostras ensaiadas, a textura formada e o tamanho de grão. Foi observado que a de temperatura de simulação que mais favorece a ocorrência da recristalização estática está entre 900 e 840 ºC e o tamanho de grão resultante é menor em tais condições. A textura de torção obtida está em concordância com a literatura. Palavras-chave: Textura cristalográfica; Recristalização; EBSD; Aço inoxidável ferrítico. EFFECT OF HOT DEFORMATION TEMPERATURE ON THE RECRYSTALLIZATION AND TEXTURE ON A FERRITIC STAINLESS STEEL AISI 430 NIOBIUM STABILIZED AbstractThe effect of the hot deformation temperature on the crystallographic texture of a ferritic stainless steel AISI 430 Nb-stabilized was studied by hot torsion test. The finishing hot rolling, in Steckel mill, was simulated using different temperature ranges aiming to promote softening by recrystallization. After the tests, the samples were quenched to room temperature in order to evaluate the microstructures. Interrupted torsion tests were also performed to assess the occurrence of interpass recrystallization. EBSD was used to analyze the obtained microstructures, texture and grain size. It was found that the best temperature range to promote static recrystallization was between 900 and 840 °C and the grain size is more refined in this condition. The torsion texture obtained concurs with literature.

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Modelling of Microstructure Evolution during Recrystallization Controlled Rolling.

Cited by 67 publications

References 1 publication

Effect of the addition of niobium and aluminium on the microstructures and mechanical properties of micro-alloyed PM steels

Effect of the addition of niobium and aluminium on the microstructures and mechanical properties of micro-alloyed PM steels

Influence of Alloying Elements in Solution on Static Recrystallization Kinetics of Hot Deformed Steels.

Efeito Da Temperatura De Deformação a Quente Na Recristalização E Na Textura De Um Aço Inoxidável Ferrítico Aisi 430 Estabilizado Ao Nióbio

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