000203283 001__ 203283
000203283 005__ 20180913062840.0
000203283 020__ $$a9780470943205
000203283 037__ $$aBOOK_CHAP
000203283 245__ $$aUnderstanding and Modeling of Grain Boundary Pinning in Inconel 718
000203283 269__ $$a2012
000203283 260__ $$bJohn Wiley and Sons$$c2012
000203283 336__ $$aBook Chapters
000203283 520__ $$aThe microstructure stability during δ sub-solvus annealing was investigated in Inconel 718 alloy. A reference dynamically recrystallized microstructure was produced through thermomechanical processing (torsion). The reference microstructure evolution during annealing was analyzed by EBSD (grain size, intragranular misorientation) and SEM (Σ <5 phase particles). Results confirm that, in the absence of stored energy, the grain structure is controlled by the δ phase particles, as predicted by the Zener equation. If the reference microstructure is strained (å < 0.1) before annealing, then stored energy gradients between grains will induce selective grain growth leading to coarsening. The phenomenon is controlled by the balance of three forces (acting on boundaries migration) having the same order of magnitude: capillarity, stored-energy and pinning forces. All these forces could be modeled in a single framework by the level set method. The first numerical results demonstrate the capability of the method to simulate 2D Zener pinning. © 2012 The Minerals, Metals, & Materials Society. All rights reserved.
000203283 6531_ $$aGrain growth
000203283 6531_ $$aInconel 718
000203283 6531_ $$aNumerical simulation
000203283 6531_ $$aZener pinning
000203283 700__ $$aAgnoli, A.
000203283 700__ $$aBernacki, M.
000203283 700__ $$0248074$$aLogé, R.$$g243441
000203283 700__ $$aFranchet, J.-M.
000203283 700__ $$aLaigo, J.
000203283 700__ $$aBozzolo, N.
000203283 773__ $$q73-82$$tSuperalloys 2012
000203283 909C0 $$0252516$$pLMTM$$xU12903
000203283 909CO $$ooai:infoscience.tind.io:203283$$pSTI$$pchapter
000203283 937__ $$aEPFL-CHAPTER-203283
000203283 973__ $$aOTHER$$rREVIEWED$$sPUBLISHED
000203283 980__ $$aCHAPTER