Effect of processing parameters on the microstructure and properties of an Nb microalloyed steel

Bakkaloğlu, Adem

doi:10.1016/s0167-577x(02)00453-6

Cited by 54 publications

(56 citation statements)

References 9 publications

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“…[4][5][6][7][8] It is generally accepted that hot rolling leads to finer ferrite grains. This is because hot rolling recrystallizes austenite grains, resulting in smaller austenite grains and, subsequently, finer ferrite grains.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nb Microalloying and Hot Rolling on Microstructure and Properties of Ultrathin Cast Strip Steels Produced by the CASTRIP® Process

Xie

Yao

Zhu

et al. 2011

Metall Mater Trans A

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The microstructure and corresponding tensile properties of both plain and Nb-microalloyed grades of ultrathin cast strip (UCS) low alloy steel produced using the CASTRIP Ò process were studied. Both as-cast and hot-rolled strip cast steels with various levels of Nb microalloying were manufactured and investigated in this study. Hot rolling had little effect on the yield strength of Nb microalloyed UCS specimens for a given chemical composition, but resulted in a slightly finer microstructure. The effect of Nb microalloying was significant, and this is attributable to the promotion of finer, tougher austenite transformation products such as bainite and acicular ferrite at the expense of large polygonal ferrite grains. A fine dispersion of Nb solute clusters was observed in all Nb-containing steels following hot rolling, and it is suggested that this also contributes to the observed strengthening.

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Section: Introductionmentioning

confidence: 99%

Effect of Nb Microalloying and Hot Rolling on Microstructure and Properties of Ultrathin Cast Strip Steels Produced by the CASTRIP® Process

Xie

Yao

Zhu

et al. 2011

Metall Mater Trans A

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“…bainite which was nucleated intragranularly in the material inclusions (Lee et al, 2003;Bhadeshia, 1998;Drobnjak andKoprivica, 1996, Sugden andBhadeshia, 1989). While bainite is formed by bundles of parallel plates of ferrite, acicular ferrite is much more irregular, with plates in different plans.…”

Section: A B C Dmentioning

confidence: 99%

“…Every year in Europe, millions of tons of steel parts are produced by hot forging processes (Panjan et al, 2002). For a good combination of toughness and strength, forging processes provide a microstructure of fine grains (Bakkaloglu, 2002;Li et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Mechanical properties of ausforged 27MnSiVS6 microalloyed steel

Caminaga

Button

2013

Rem: Rev. Esc. Minas

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ResumoOs processos de forjamento a quente aplicados aos aços microligados, também conhecidos como aços de alta resistência e baixa liga (ARBL), têm uma extensa aplicação na produção de componentes automotivos. O objetivo desse trabalho foi o de estudar o comportamento microestrutural por microscopia óptica e o comportamento mecânico, em termos de propriedades de resistência e tenacidade do aço microligado 27MnSiVS6, quando empregado no processo denominado "ausforging", a fim de se analisarem o desempenho do processo e a qualidade dos produtos, comparando-os com os processos de forjamento a quente e a morno. Os produtos forjados provenientes do "ausforging" que foram submetidos aos ensaios de tração unidirecional, fadiga em flexão rotativa e tenacidade à fratura, apresentaram as melhores propriedades mecânicas. Os testes estatísticos aplicados aos resultados permitiram concluir que os produtos obtidos por "ausforging" apresentaram a melhor combinação de resistência mecânica e qualidade superficial dos produtos forjados, sem aumentar a carga de forjamento.Palavras-chave: "Ausforging", forjamento, metalurgia física. Abstract

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“…So the research is focusing on the hot rolling process and cooling control methods. After consulting articles and documents about I-beam hot rolling cooling control process [2][3][4], it can be concluded that it not only improves the mechanical properties, but also decreases the residual stress and nonuniform deformation [5][6][7]. So the promotion of cooling control process plays an important role in improving rolling qualities of the steel, however at the original stage of rolling cooling control, its surface temperature picks up because of the relative slow cooling velocity in internal and will finally tend to be uniform with its internal temperature.…”

Section: Introductionmentioning

confidence: 99%

The I-beam steel temperature field analysis in cooling control process after hot rolling

Wang¹,

Zhu²,

Ju³

et al. 2016

Proceedings of the 2016 5th International Conference on Environment, Materials, Chemistry and Power Electronics

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Abstract. Basing on the heat transfer theory, the process of Q235 I-beam steel which is chosen to be studied could be done after rolling cooling control analysis. Given the practical manufacturing conditions, the finite element theory and its temperature field can be built to control the cooling process of I-beam steel hot rolling. There are three projects that can adopted to do the numerical simulation analysis in controlling the cooling process for its each part temperature distribution, meanwhile the temperature decline curves and instantaneous temperature field distribution could be achieved under different conditions such as cooling time, cooling velocity, ending cool temperature and the major factor that affects the temperature field distribution can also be find. The feasibility of this project has been proved by comparing and analyzing the theoretical results and its experimental outcomes to the cooling control process, so that it can be consulted to design the cooling control process reasonably.

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Effect of processing parameters on the microstructure and properties of an Nb microalloyed steel

Cited by 54 publications

References 9 publications

Effect of Nb Microalloying and Hot Rolling on Microstructure and Properties of Ultrathin Cast Strip Steels Produced by the CASTRIP® Process

Effect of Nb Microalloying and Hot Rolling on Microstructure and Properties of Ultrathin Cast Strip Steels Produced by the CASTRIP® Process

Mechanical properties of ausforged 27MnSiVS6 microalloyed steel

The I-beam steel temperature field analysis in cooling control process after hot rolling

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