Thermal Grooving by Surface Diffusion: a Review of Classical Thermo-Kinetics Approach
I n polycrystalline materials wherever a grain boundary intersects a free surface and whenever the topographic variation associated with the atomic motion is favored by total free energy dissipation, the material surface grooves. In this review, we focused on the grain boundary grooving by surface d...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Hitit University
2017-06-01
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| Series: | Hittite Journal of Science and Engineering |
| Subjects: | |
| Online Access: | https://dergipark.org.tr/tr/download/article-file/1506828 |
| _version_ | 1797662718648385536 |
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| author | Oncu Akyildiz Tarik Omer Ogurtani |
| author_facet | Oncu Akyildiz Tarik Omer Ogurtani |
| author_sort | Oncu Akyildiz |
| collection | DOAJ |
| description | I n polycrystalline materials wherever a grain boundary intersects a free surface and whenever the topographic variation associated with the atomic motion is favored by total free energy dissipation, the material surface grooves. In this review, we focused on the grain boundary grooving by surface diffusion which is an active mechanism at moderate temperatures and for grooves small in size. Starting with a description of the classical thermo-kinetics treatment of the process, we briefly reviewed Mullins’ very first modeling effort with a small slope assumption at the groove root and further considerations regarding finite slopes, different grain geometries, and anisotropic surface free energies. We concluded by giving examples of experimental observations in accord with theoretical calculations |
| first_indexed | 2024-03-11T19:04:14Z |
| format | Article |
| id | doaj.art-3dedbc6828b4493f8dbd9391284e6527 |
| institution | Directory Open Access Journal |
| issn | 2148-4171 |
| language | English |
| last_indexed | 2024-03-11T19:04:14Z |
| publishDate | 2017-06-01 |
| publisher | Hitit University |
| record_format | Article |
| series | Hittite Journal of Science and Engineering |
| spelling | doaj.art-3dedbc6828b4493f8dbd9391284e65272023-10-10T11:17:26ZengHitit UniversityHittite Journal of Science and Engineering2148-41712017-06-014171610.17350/HJSE19030000042150Thermal Grooving by Surface Diffusion: a Review of Classical Thermo-Kinetics ApproachOncu Akyildiz0Tarik Omer Ogurtani1Department of Metallurgical and Materials Engineering, Hitit University, 19030, Corum, TURKEY.Department of Metallurgical and Materials Engineering, Middle East Technical University, 06531, Ankara, TURKEY.I n polycrystalline materials wherever a grain boundary intersects a free surface and whenever the topographic variation associated with the atomic motion is favored by total free energy dissipation, the material surface grooves. In this review, we focused on the grain boundary grooving by surface diffusion which is an active mechanism at moderate temperatures and for grooves small in size. Starting with a description of the classical thermo-kinetics treatment of the process, we briefly reviewed Mullins’ very first modeling effort with a small slope assumption at the groove root and further considerations regarding finite slopes, different grain geometries, and anisotropic surface free energies. We concluded by giving examples of experimental observations in accord with theoretical calculationshttps://dergipark.org.tr/tr/download/article-file/1506828thermal groovinggrain boundary groovesurface diffusion |
| spellingShingle | Oncu Akyildiz Tarik Omer Ogurtani Thermal Grooving by Surface Diffusion: a Review of Classical Thermo-Kinetics Approach Hittite Journal of Science and Engineering thermal grooving grain boundary groove surface diffusion |
| title | Thermal Grooving by Surface Diffusion: a Review of Classical Thermo-Kinetics Approach |
| title_full | Thermal Grooving by Surface Diffusion: a Review of Classical Thermo-Kinetics Approach |
| title_fullStr | Thermal Grooving by Surface Diffusion: a Review of Classical Thermo-Kinetics Approach |
| title_full_unstemmed | Thermal Grooving by Surface Diffusion: a Review of Classical Thermo-Kinetics Approach |
| title_short | Thermal Grooving by Surface Diffusion: a Review of Classical Thermo-Kinetics Approach |
| title_sort | thermal grooving by surface diffusion a review of classical thermo kinetics approach |
| topic | thermal grooving grain boundary groove surface diffusion |
| url | https://dergipark.org.tr/tr/download/article-file/1506828 |
| work_keys_str_mv | AT oncuakyildiz thermalgroovingbysurfacediffusionareviewofclassicalthermokineticsapproach AT tarikomerogurtani thermalgroovingbysurfacediffusionareviewofclassicalthermokineticsapproach |