Correlated subgrain and particle analysis of a recovered Al-Mn alloy by directly combining EBSD and backscatter electron imaging

Ånes, Håkon Wiik; Helvoort, Antonius T. J. van; Marthinsen, Knut

doi:10.1016/j.matchar.2022.112228

Cited by 6 publications

(1 citation statement)

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“…Thus, the stored energy in the material can be approximated by the interfacial energy of subgrains and grain boundaries, and the contribution of stored energy within the subgrains can be ignored. The characteristics of these substructures, such as subgrain size and disorientation distribution, depend on the crystallographic orientation of the initial grain and how its orientation evolves during deformation [10,13,14].…”

Section: Introductionmentioning

confidence: 99%

Large-Scale Multi-Phase-Field Simulation of 2D Subgrain Growth

Khajezade,

Poole,

Greenwood

et al. 2024

Metals

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The characteristics of subgrains in a deformed state after the high-temperature deformation of aluminum alloys control the subsequent recrystallization process and corresponding mechanical properties. In this study, systematic 2D phase-field simulations have been conducted to determine the role of deformed state parameters such as subgrain size and disorientation distributions on subgrain growth in an individual grain representing a single crystallographic orientation. The initial subgrain size and disorientation distributions have been varied by ±50%. To have a statistically relevant number of subgrains, large-scale simulations have been conducted using an in-house-developed phase-field code that takes advantage of distributed computing. The results of these simulations indicate that the growth of subgrains reaches a self-similar regime regardless of the initial subgrain structure. A narrower initial subgrain size distribution leads to faster growth rates, but it is the initial disorientation distribution that has a larger impact on the growth of subgrains. The results are discussed in terms of the evolution of the average diameter of subgrains and the average disorientation in the microstructure.

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Section: Introductionmentioning

confidence: 99%