Coalescence of martensite under uniaxial tension of iron crystallites by atomistic simulations
| Autor: | Xiaoqin Ou, Jilt Sietsma, Maria Jesus Santofimia |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Coalescence (physics) coalescence Materials science Mechanical Engineering Uniaxial tension Nucleation 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Molecular dynamics iron molecular dynamics simulation Mechanics of Materials Martensite 0103 physical sciences Ultimate tensile strength General Materials Science Crystallite Composite material Variant selection 0210 nano-technology mechanically induced phase transformation |
| Zdroj: | Materials Science and Technology, 36(11) |
| ISSN: | 1743-2847 0267-0836 |
| DOI: | 10.1080/02670836.2020.1762301 |
| Popis: | Molecular dynamics simulations are used to study the effects of tensile loading on nucleation and subsequent growth of bcc phase in pure fcc iron. The results show that orientation variant selection occurs during the stress-induced fcc-to-bcc transformation, which leads to the coalescence of neighbouring bcc platelets with identical orientation. The bcc phase nucleates mainly following Nishiyama–Wassermann and Kurdjumov–Sachs orientation relationships with the parent fcc phase. The present simulations contribute to a better understanding of mechanisms controlling mechanically induced martensitic transformation as well as coalescence of bcc platelets in steels. |
| Databáze: | OpenAIRE |
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