2013
DOI: 10.1016/j.msea.2012.09.058
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Thermomechanical warm forging of Ti–V, Ti–Nb, and Ti–B microalloyed medium carbon steels

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Cited by 33 publications
(4 citation statements)
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“…However, contrary to higher temperature trials, a microstructure abundant in crystallographic defects was obtained during the forging at about 900°C, such as shearing bands and non-recrystallized sub-cells with particularly fine grains at the grain boundaries, which can be attributed to discontinuous dynamic recrystallization, resulting in a selective renovation of the grains, typical of a low-temperature deformation. 19,20 The presence of such grains confirms that the deformation was completed below the temperature, at which the recrystallization and/or the straininduced precipitation inhibiting static recrystallization can occur. 21 The mixture of fine recrystallized and strain-hardened grains produced a significant strengthening, resulting in an UTS of 1700 MPa, similar to the related studies.…”
Section: Discussionmentioning
confidence: 80%
“…However, contrary to higher temperature trials, a microstructure abundant in crystallographic defects was obtained during the forging at about 900°C, such as shearing bands and non-recrystallized sub-cells with particularly fine grains at the grain boundaries, which can be attributed to discontinuous dynamic recrystallization, resulting in a selective renovation of the grains, typical of a low-temperature deformation. 19,20 The presence of such grains confirms that the deformation was completed below the temperature, at which the recrystallization and/or the straininduced precipitation inhibiting static recrystallization can occur. 21 The mixture of fine recrystallized and strain-hardened grains produced a significant strengthening, resulting in an UTS of 1700 MPa, similar to the related studies.…”
Section: Discussionmentioning
confidence: 80%
“…Based on this, microalloying and optimising heat treatment processes can be applied to increase the strength and ductility. For instance, the microalloying elements including V, Nb, Ti, and B, are usually added to the molten steel in small amounts, subsequently combined with the Q-T process to exert the effects of grain refinement and precipitation strengthening [11][12][13][14][15][16]. Over the past decades, many studies have investigated these aspects.…”
Section: Introductionmentioning
confidence: 99%
“…For the determination of the mechanical properties influenced by TMT, small-scale processes with focus on the investigation of microstructures by metallographic methods were mainly used. Additionally, reduced test procedures are common for the determination of mechanical properties [ 10 ]. Kang et al, for example, examined a cold-rolled and tempered steel with an ultra-fine grain structure by means of hardness measurements and small-scale tensile tests with a cross-section of 2 × 2 mm [ 11 ].…”
Section: Introductionmentioning
confidence: 99%