000120263 001__ 120263
000120263 005__ 20190228220136.0
000120263 0247_ $$2doi$$a10.1016/j.msea.2004.12.056
000120263 022__ $$a0921-5093
000120263 02470 $$2DAR$$a7125
000120263 02470 $$2ISI$$a000230681900050
000120263 037__ $$aARTICLE
000120263 245__ $$aOn the strain-hardening of tempered martensitic alloys
000120263 260__ $$bElsevier$$c2005
000120263 269__ $$a2005
000120263 336__ $$aJournal Articles
000120263 520__ $$aThe strain-hardening behaviour of a tempered martensitic iron-chromium-carbon model was examined in terms of dislocation mechanics. Tensile tests of this body-centered cubic alloy were carried out from 77 up to 293 K. A specific relationship between the flow stress a and the dislocation density p was considered below the transition temperature (T < 200 K) where the Peierls lattice friction becomes the single rate controlling mechanism. This relationship is different from the usual Taylor equation, where the flow stress scales with the square root of the dislocation density. This sigma-rho relationship was used in conjunction with an equation characterizing the dislocation evolution with strain to derive a strain- hardening law. The parameters that play a key role in the strain-hardening are the mean dislocation free path and a dislocation annihilation coefficient. The values of these parameters used to describe the strain-hardening law as well as their temperature dependence are found to be consistent with the microstructure. (c) 2005 Elsevier B.V. All rights reserved.
000120263 700__ $$aBonadé, R.
000120263 700__ $$g106982$$aSpätig, P.$$0240522
000120263 773__ $$j400$$tMaterials Science and Engineering a-Structural Materials Properties Microstructure and Processing$$q234-240
000120263 909CO $$pSB$$particle$$ooai:infoscience.tind.io:120263
000120263 909C0 $$pCRPP
000120263 909C0 $$0252028$$pSPC$$xU12272$$xU12268$$xU10558$$xU10635$$xU12266$$xU10636$$xU10137$$xU12270$$xU10557$$xU12273$$xU10559$$xU12271$$xU12269$$xU12267$$xU10136
000120263 937__ $$aCRPP-ARTICLE-2005-105
000120263 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000120263 980__ $$aARTICLE