Effects of precipitate size and spacing on deformation-induced fcc to bcc phase transformation
Molecular dynamics simulations were used to study deformation-induced face-centered cubic (fcc) to body-centered cubic (bcc) transformation during uniaxial compression of an 80Fe-20Ni (at%) alloy with and without precipitates. Our purpose was to better understand recent experimental results in an Fe...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2022-09-01
|
| Series: | Materials Research Letters |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/21663831.2022.2067504 |
| _version_ | 1811254359385702400 |
|---|---|
| author | Eva Zarkadoula Ying Yang Albina Borisevich Easo George |
| author_facet | Eva Zarkadoula Ying Yang Albina Borisevich Easo George |
| author_sort | Eva Zarkadoula |
| collection | DOAJ |
| description | Molecular dynamics simulations were used to study deformation-induced face-centered cubic (fcc) to body-centered cubic (bcc) transformation during uniaxial compression of an 80Fe-20Ni (at%) alloy with and without precipitates. Our purpose was to better understand recent experimental results in an Fe-Ni-based medium-entropy alloy where certain precipitates were found to constrain the fcc to bcc transformation. We find that larger precipitates and smaller spacings between precipitates hinder the phase transformation by impeding relaxation of internal elastic strains. These results deconvolute the individual effects of precipitate size and spacing and help interpret the experimental results where only their combined effects could be measured. |
| first_indexed | 2024-04-12T17:05:11Z |
| format | Article |
| id | doaj.art-4c25a9d1c6ee4d9a8e17774822d347d3 |
| institution | Directory Open Access Journal |
| issn | 2166-3831 |
| language | English |
| last_indexed | 2024-04-12T17:05:11Z |
| publishDate | 2022-09-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj.art-4c25a9d1c6ee4d9a8e17774822d347d32022-12-22T03:23:57ZengTaylor & Francis GroupMaterials Research Letters2166-38312022-09-0110958559210.1080/21663831.2022.2067504Effects of precipitate size and spacing on deformation-induced fcc to bcc phase transformationEva Zarkadoula0Ying Yang1Albina Borisevich2Easo George3Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USAMaterials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USACenter for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, USAMaterials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USAMolecular dynamics simulations were used to study deformation-induced face-centered cubic (fcc) to body-centered cubic (bcc) transformation during uniaxial compression of an 80Fe-20Ni (at%) alloy with and without precipitates. Our purpose was to better understand recent experimental results in an Fe-Ni-based medium-entropy alloy where certain precipitates were found to constrain the fcc to bcc transformation. We find that larger precipitates and smaller spacings between precipitates hinder the phase transformation by impeding relaxation of internal elastic strains. These results deconvolute the individual effects of precipitate size and spacing and help interpret the experimental results where only their combined effects could be measured.https://www.tandfonline.com/doi/10.1080/21663831.2022.2067504Molecular dynamicsprecipitatesphase transformationphase transition |
| spellingShingle | Eva Zarkadoula Ying Yang Albina Borisevich Easo George Effects of precipitate size and spacing on deformation-induced fcc to bcc phase transformation Materials Research Letters Molecular dynamics precipitates phase transformation phase transition |
| title | Effects of precipitate size and spacing on deformation-induced fcc to bcc phase transformation |
| title_full | Effects of precipitate size and spacing on deformation-induced fcc to bcc phase transformation |
| title_fullStr | Effects of precipitate size and spacing on deformation-induced fcc to bcc phase transformation |
| title_full_unstemmed | Effects of precipitate size and spacing on deformation-induced fcc to bcc phase transformation |
| title_short | Effects of precipitate size and spacing on deformation-induced fcc to bcc phase transformation |
| title_sort | effects of precipitate size and spacing on deformation induced fcc to bcc phase transformation |
| topic | Molecular dynamics precipitates phase transformation phase transition |
| url | https://www.tandfonline.com/doi/10.1080/21663831.2022.2067504 |
| work_keys_str_mv | AT evazarkadoula effectsofprecipitatesizeandspacingondeformationinducedfcctobccphasetransformation AT yingyang effectsofprecipitatesizeandspacingondeformationinducedfcctobccphasetransformation AT albinaborisevich effectsofprecipitatesizeandspacingondeformationinducedfcctobccphasetransformation AT easogeorge effectsofprecipitatesizeandspacingondeformationinducedfcctobccphasetransformation |