Ex situ analysis of high-strength quenched and micro-alloyed steel during austenitising bending process: numerical simulation and experimental investigation

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dc.contributor.authorLu, Yao
dc.contributor.authorXie, Haibo
dc.contributor.authorWang, Jun
dc.contributor.authorJia, Fanghui
dc.contributor.authorLin, Fei
dc.contributor.authorZhou, Cunlong
dc.contributor.authorXu, Jianzhong
dc.contributor.authorHan, Jingtao
dc.contributor.authorJiang, Zhengyi
dc.date.accessioned2022-05-24T08:39:14Z
dc.date.available2022-05-24T08:39:14Z
dc.date.issued2022-05-11
dc.description.abstractThis paper compares the microstructure and mechanical evolution in a high-strength quenched and micro-alloyed steel during the austenitising bending process. Simulation results indicated a new finding that the stress neutral layer (SNL) tends to move to the tension zone during straining. The hardness gradient detected from the centre to compression/tension zones was resulted from comprehensive factors: First of all, the location of SNL revealed a prominent impact on strength. Second, the dislocation accumulation would be responsible for the hardness gradient on the surfaces. In addition, the overall strength decrease during straining was mainly ascribed to integrated effects of dynamic recovery (DRV) and dynamic recrystallisation (DRX). Apart from that, overall smaller martensite packet size and coarser prior austenite grains resulted in the increased hardness value at a lower bending degree. Also, the high consistency between experimental and simulation results is instructive for the practical forming process of railway spring fasteners.en_UK
dc.identifier.citationLu Y, Xie H, Wang J, et al., (2022) Ex situ analysis of high-strength quenched and micro-alloyed steel during austenitising bending process: numerical simulation and experimental investigation, The International Journal of Advanced Manufacturing Technology, Volume 120, Issue 11-12, pp. 8293-8309en_UK
dc.identifier.eissn1433-3015
dc.identifier.issn0268-3768
dc.identifier.urihttps://doi.org/10.1007/s00170-022-09261-6
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/17948
dc.language.isoenen_UK
dc.publisherSpringeren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectHigh-strength quenched and micro-alloyed steelen_UK
dc.subjectAustenitising bendingen_UK
dc.subjectAustenite reconstructionen_UK
dc.subjectNumerical simulationen_UK
dc.subjectMicrostructureen_UK
dc.subjectMechanical propertyen_UK
dc.titleEx situ analysis of high-strength quenched and micro-alloyed steel during austenitising bending process: numerical simulation and experimental investigationen_UK
dc.typeArticleen_UK

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