000214155 001__ 214155
000214155 005__ 20181203024059.0
000214155 0247_ $$2doi$$a10.1016/j.msea.2015.07.048
000214155 022__ $$a0921-5093
000214155 02470 $$2ISI$$a000361258200015
000214155 037__ $$aARTICLE
000214155 245__ $$aComparative study and quantification of cementite decomposition in heavily drawn pearlitic steel wires
000214155 260__ $$bElsevier Science Sa$$c2015$$aLausanne
000214155 269__ $$a2015
000214155 300__ $$a9
000214155 336__ $$aJournal Articles
000214155 520__ $$aHeavily cold-drawing was performed on a pearlitic steel wire and on an ultra-low carbon (ULC) steel wire in order to highlight and quantify the microstructural changes caused by this type of deformation. Both global techniques (thermoelectric power, electrical resistivity, internal fiction background) and local techniques (Atom Probe Tomography) were combined for this study. It was shown that two distinct stages have to be taken into account during the cold-drawing of pearlitic steels. The first stage (below a true strain of 1.5) was attributed mainly to the lamellar alignment, while the second stage (above a true strain of 1.5) was unambiguously interpreted as being due to a gradual enrichment of the carbon content of ferrite arising from the strain induced cementite decomposition. The carbon content in solid solution in ferrite was assessed as a function of the true strain. All the techniques showed that this carbon content exceeds the solubility limit of carbon in the ferrite above a true strain of 2.2. A correlation between the increase in the carbon content of ferrite and the increase in yield strength was also highlighted. Moreover, a scenario was proposed to explain the microstructural changes caused by drawing. (C) 2015 Elsevier B.V. All rights reserved.
000214155 6531_ $$aPearlite
000214155 6531_ $$aDrawing
000214155 6531_ $$aPhase decomposition
000214155 6531_ $$aElectrical resistivity
000214155 6531_ $$aThermoelectric power
000214155 6531_ $$aInternal friction
000214155 6531_ $$aAtom Probe Tomography
000214155 700__ $$uUniv Lyon, INSA Lyon, CNRS, MATEIS UMR 5510, F-69621 Villeurbanne, France$$aLamontagne, A.
000214155 700__ $$uUniv Lyon, INSA Lyon, CNRS, MATEIS UMR 5510, F-69621 Villeurbanne, France$$aMassardier, V.
000214155 700__ $$uUniv Lyon, INSA Lyon, CNRS, MATEIS UMR 5510, F-69621 Villeurbanne, France$$aKleber, X.
000214155 700__ $$aSauvage, X.
000214155 700__ $$g109056$$uEcole Polytech Fed Lausanne, Inst Condensed Matter Phys, CH-1015 Lausanne, Switzerland$$aMari, D.$$0244806
000214155 773__ $$j644$$tMaterials Science And Engineering A-Structural Materials Properties Microstructure And Processing$$q105-113
000214155 909C0 $$xU10142$$0252321$$pLPMC
000214155 909CO $$pSB$$particle$$ooai:infoscience.tind.io:214155
000214155 917Z8 $$x109056
000214155 937__ $$aEPFL-ARTICLE-214155
000214155 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000214155 980__ $$aARTICLE