Zobrazeno 1 - 10
of 401
pro vyhledávání: '"BERNACKI, Marc"'
Autor:
Chandrappa, Nitish, Bernacki, Marc
The formation of microstructures in metallic alloys during hot metal forming involves simultaneous metallurgical complex phenomena. Traditional high-fidelity numerical frameworks used on the polycrystalline scale tend to focus on single-phase microst
Externí odkaz:
http://arxiv.org/abs/2405.12995
Autor:
Bignon, Madeleine, Bernacki, Marc
This study proposes a new analytical model for grain boundary pinning by second phase particles in two-dimensional polycrystals. This approach not only considers how particles impede grain growth, but also elucidates their role in preventing grain di
Externí odkaz:
http://arxiv.org/abs/2404.13055
Mean-field models have the ability to predict grain size distribution evolution occurring through thermomechanical solicitations. This article focuses on a comparison of mean-field models under grain growth conditions. Different microstructure repres
Externí odkaz:
http://arxiv.org/abs/2310.18317
Autor:
Bernacki, Marc
For over three decades, the front-capturing level-set method has demonstrated its prowess for the simulation, at the mesoscopic scale, of numerous mechanisms in the context of microstructure evolution occurring during complex thermomechanical paths.
Externí odkaz:
http://arxiv.org/abs/2310.04421
A recently developed full field level-set model of continuous dynamic recrystallization is applied to simulate zircaloy-4 recrystallization during hot compression and subsequent heat treatment. The influence of strain rate, final strain and initial m
Externí odkaz:
http://arxiv.org/abs/2304.10506
Dynamic recrystallization is one of the main phenomena responsible for microstructure evolutions during hot forming. Consequently, getting a better understanding of DRX mechanisms and being able to predict them is crucial. This paper proposes a full-
Externí odkaz:
http://arxiv.org/abs/2210.15666
Autor:
Chandrappa, Nitish, Bernacki, Marc
Numerous full-field numerical methods exist concerning the digital description of polycrystalline materials and the modeling of their evolution during thermomechanical treatments. However, these strategies are globally dedicated to the modeling of re
Externí odkaz:
http://arxiv.org/abs/2208.09434
The present article proposes a detailed study of recrystallization of zircaloy-4 under hot forming conditions by means of experimental and numerical tools. Thermomechanical tests and characterization campaigns that have been necessary for this work a
Externí odkaz:
http://arxiv.org/abs/2203.08447
Two finite element level-set (FE-LS) formulations are compared for the modeling of grain growth of 316L stainless steel in terms of grain size, mean values and histograms. Two kinds of microstructures are considered, some are generated statistically
Externí odkaz:
http://arxiv.org/abs/2202.04930