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## Investigation of Full-field and Mean-field Models for Pure Grain Growth Simulations

#### Betül AKTAŞ [1] , Caner ŞİMŞİR [2]

Mean-field approaches are commonly used in the simulation of grain growth in metals as they are easier to implement. However, mean-field models only track the evolution of average grain diameter as a function of temperature and time, while they neglect the effect of actual grain size distribution, which limits their applicability. Recently introduced full-field models of grain growth – either by level-set and phase field methods- allow to overcome the barriers of mean-field methods, but they are computationally much more demanding. In this article, the main goal is to investigate the applicability of both approaches for the pure grain growth in a solid with an initial Gaussian grain size distribution. The main idea is to keep the average grain size constant while altering the grain size distribution by modifying the standard deviation. DIGIMU software, which uses the level-set approach - is used for this purpose. The conclusion is that full-field models are beneficial to observe changes during grain growth; alternatively, mean-field models deduce approximately the same results as full-field models for a Gaussian distribution within a shorter time. However, it is found that mean-field models overlook certain important stages of the evolution of the microstructure, while full-field method captures all the details. Therefore, the model to investigate the grain growth mechanism should be selected accordingly.
Grain growth, Mean-field models, Full-field models, Mean grain sizeHittite
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Primary Language en Engineering Research Article Orcid: 0000-0002-7844-1194Author: Betül AKTAŞInstitution: TAMPERE UNIVERSITYCountry: Turkey Orcid: 0000-0001-9520-4695Author: Caner ŞİMŞİRInstitution: MIDDLE EAST TECHNICAL UNIVERSITYCountry: Turkey Application Date : November 15, 2020 Acceptance Date : March 15, 2021 Publication Date : March 31, 2021
 Bibtex @research article { hjse907498, journal = {Hittite Journal of Science and Engineering}, issn = {}, eissn = {2148-4171}, address = {Hitit Üniversitesi Mühendislik Fakültesi Kuzey Kampüsü Çevre Yolu Bulvarı 19030 Çorum / TÜRKİYE}, publisher = {Hitit University}, year = {2021}, volume = {8}, pages = {41 - 47}, doi = {10.17350/HJSE19030000211}, title = {Investigation of Full-field and Mean-field Models for Pure Grain Growth Simulations}, key = {cite}, author = {Aktaş, Betül and Şimşir, Caner} } APA Aktaş, B , Şimşir, C . (2021). Investigation of Full-field and Mean-field Models for Pure Grain Growth Simulations . Hittite Journal of Science and Engineering , 8 (1) , 41-47 . DOI: 10.17350/HJSE19030000211 MLA Aktaş, B , Şimşir, C . "Investigation of Full-field and Mean-field Models for Pure Grain Growth Simulations" . Hittite Journal of Science and Engineering 8 (2021 ): 41-47 Chicago Aktaş, B , Şimşir, C . "Investigation of Full-field and Mean-field Models for Pure Grain Growth Simulations". Hittite Journal of Science and Engineering 8 (2021 ): 41-47 RIS TY - JOUR T1 - Investigation of Full-field and Mean-field Models for Pure Grain Growth Simulations AU - Betül Aktaş , Caner Şimşir Y1 - 2021 PY - 2021 N1 - doi: 10.17350/HJSE19030000211 DO - 10.17350/HJSE19030000211 T2 - Hittite Journal of Science and Engineering JF - Journal JO - JOR SP - 41 EP - 47 VL - 8 IS - 1 SN - -2148-4171 M3 - doi: 10.17350/HJSE19030000211 UR - https://doi.org/10.17350/HJSE19030000211 Y2 - 2021 ER - EndNote %0 Hittite Journal of Science and Engineering Investigation of Full-field and Mean-field Models for Pure Grain Growth Simulations %A Betül Aktaş , Caner Şimşir %T Investigation of Full-field and Mean-field Models for Pure Grain Growth Simulations %D 2021 %J Hittite Journal of Science and Engineering %P -2148-4171 %V 8 %N 1 %R doi: 10.17350/HJSE19030000211 %U 10.17350/HJSE19030000211 ISNAD Aktaş, Betül , Şimşir, Caner . "Investigation of Full-field and Mean-field Models for Pure Grain Growth Simulations". Hittite Journal of Science and Engineering 8 / 1 (March 2021): 41-47 . https://doi.org/10.17350/HJSE19030000211 AMA Aktaş B , Şimşir C . Investigation of Full-field and Mean-field Models for Pure Grain Growth Simulations. Hittite J Sci Eng. 2021; 8(1): 41-47. Vancouver Aktaş B , Şimşir C . Investigation of Full-field and Mean-field Models for Pure Grain Growth Simulations. Hittite Journal of Science and Engineering. 2021; 8(1): 41-47. IEEE B. Aktaş and C. Şimşir , "Investigation of Full-field and Mean-field Models for Pure Grain Growth Simulations", Hittite Journal of Science and Engineering, vol. 8, no. 1, pp. 41-47, Mar. 2021, doi:10.17350/HJSE19030000211

Authors of the Article
[1]
[2]