1992
DOI: 10.2355/isijinternational.32.377
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Prediction of Microstructure Distribution in the Through-thickness Direction during and after Hot Rolling in Carbon Steels.

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Cited by 53 publications
(38 citation statements)
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“…It was also found that the average austenite grain size decreased with increasing Nb content in the steels. Generally, it has been reported that increasing the N content in the steel leads to a beneficial increase in grain refinement (Alogan et al, 2007;Hodgson and Gibbs, 1992;Nanba et al, 1992), which without doubt results from the larger volume fraction of the precipitates that act as pinning particles. It should be noted, however, that while increased N content is beneficial for grain refinement, excessive levels of N dissolved in austenite may be detrimental to other properties of the steel, such as hardenability, through the decrease of the Nb fraction dissolved in the austenite, which is a key in improving most of the desired mechanical properties of the steel (Alogan et al, 2007;Hodgson and Gibbs, 1992;Nanba et al, 1992).…”
Section: Discussionmentioning
confidence: 99%
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“…It was also found that the average austenite grain size decreased with increasing Nb content in the steels. Generally, it has been reported that increasing the N content in the steel leads to a beneficial increase in grain refinement (Alogan et al, 2007;Hodgson and Gibbs, 1992;Nanba et al, 1992), which without doubt results from the larger volume fraction of the precipitates that act as pinning particles. It should be noted, however, that while increased N content is beneficial for grain refinement, excessive levels of N dissolved in austenite may be detrimental to other properties of the steel, such as hardenability, through the decrease of the Nb fraction dissolved in the austenite, which is a key in improving most of the desired mechanical properties of the steel (Alogan et al, 2007;Hodgson and Gibbs, 1992;Nanba et al, 1992).…”
Section: Discussionmentioning
confidence: 99%
“…The quantitative analysis of the optical measurements of austenite grain growth, is shown in Figure 6, which confirms the substantial influence of an increased Nb content on austenite grain growth inhibition in these steels. Quantitative evaluations of the average grain size as a function of austenitizing time and temperature in the 0.03 wt% Nb microalloyed steel are shown in Figures 7 and 8 respectively.A comparative analysis of Figures 7 and 8 indicates the expected greater effect of temperature compared with time on grain growth, as recorded by numerous studies (Seok et al, 2014;Yue et al, 2010;Nanba et al, 1992;Akamatsu, Senuma and Hasebe, 1992;Sha and Sun, 2009;Zhao et al, 2011) The influence of niobium content on austenite grain growth in microalloyed steels …”
Section: Austenite Grain Growth Behaviour In the Steels After Deformamentioning
confidence: 99%
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“…It is demonstrated during the last two decades that the thermo-mechanical behavior can be made far more accurately predicted on the basis of the finite element (FE) process models [1][2][3][4][5][6][7][8][9][10][11][12] than on the basis of the elementary models which inherently involve many simplifying assumptions. However, a precision process model, such as a FE process model, tends to require a large central processing unit (CPU) time, rendering itself inadequate for on-line calculation.…”
Section: Introductionmentioning
confidence: 99%