HAZ Characterization of Automotive DP Steels by Physical Simulation

A tétel rövid nézete
dc.contributor.authorSisodia , Raghawendra
dc.contributor.authorGáspár, Marcell
dc.contributor.authorGuellouh , Noureddine
dc.date.issued2019-03-03
dc.description.abstractDP steels were extensively used in the vehicles industry due to its extraordinary combined properties of strength, ductility, formability and weldability which contributed great significance in reducing strength to weight ratio and CO2 emission. High strength steel i.e. DP steels (3 different grades) were experimentally investigated and thermophysically simulated using Gleeble 3500 simulator to determine softening and hardening in heat affected zone. Samples were heated to different peak temperatures (1350 °C, 950 °C, 775 °C and 650 °C), two cooling time (t8.5/5 = 5 s and 30 s) and Rykalin 2D model were selected. The hardness and microstructure of the specimens were tested and analysed. For longer cooling time (t8.5/5= 30 s), we observed that softening occurs in all grade of investigated DP steels to all sub-regions. But for shorter cooling time i.e. t8.5/5= 5 s the softening is higher in intercritical HAZ compared to other sub-regions for all the types of DP steel with short cooling time (t8.5/5 = 5 s). However, the hardening zone in the CGHAZ occurs when Tmax is 1350 ºC for DP600, DP800 & DP1000 steels but it is more prominent in DP800 as compared to others two steel grade.en
dc.formatapplication/pdf
dc.identifier.citationInternational Journal of Engineering and Management Sciences, Vol. 4 No. 1 (2019) , 478-487
dc.identifier.doihttps://doi.org/10.21791/IJEMS.2019.1.59.
dc.identifier.eissn2498-700X
dc.identifier.issue1
dc.identifier.jtitleInternational Journal of Engineering and Management Sciences
dc.identifier.urihttps://hdl.handle.net/2437/295299en
dc.identifier.volume4
dc.languageen
dc.relationhttps://ojs.lib.unideb.hu/IJEMS/article/view/5262
dc.rights.accessOpen Access
dc.rights.ownerby the authors
dc.subjectDual phase steelsen
dc.subjectPhysical simulation (Gleeble 3500)en
dc.subjectHeat affected zone (HAZ)en
dc.subjectRyaklin 2D modelen
dc.subjectt8.5/5 cooling timesen
dc.titleHAZ Characterization of Automotive DP Steels by Physical Simulationen
dc.typefolyóiratcikkhu
dc.typearticleen
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International Journal of Engineering and Management Sciences (DE-journals)