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Effect of microstructure heterogeneity on the mechanical properties of friction stir welded reduced activation ferritic/martensitic steel
- Source :
- Li, S, Vajragupta, N, Biswas, A, Tang, W, Wang, H, Kostka, A, Yang, X & Hartmaier, A 2022, ' Effect of microstructure heterogeneity on the mechanical properties of friction stir welded reduced activation ferritic/martensitic steel ', Scripta Materialia, vol. 207, 114306 . https://doi.org/10.1016/j.scriptamat.2021.114306
- Publication Year :
- 2022
- Publisher :
- Elsevier, 2022.
-
Abstract
- The microhardness distribution in the different zones of a friction stir welded reduced activation ferritic/martensitic steel has been investigated and correlated to the hierarchical martensitic microstructure in the respective zones, characterized by electron backscatter diffraction orientation analysis. It is found that the variation of prior austenite grain size, packet size, and block width in different subzones is influenced by the peak temperature and effective strain rate during the friction stir welding process. The distribution of the microhardness correlates directly with the geometrically necessary dislocation density observed in the different zones.
- Subjects :
- Materials science
Friction stir welding
Mechanical Engineering
Metals and Alloys
Welding
Condensed Matter Physics
Microstructure
Reduced activation ferritic/martensitic steel
Indentation hardness
Martensitic microstructure
law.invention
Electron backscatter diffraction orientation analysis
Mechanics of Materials
law
Martensite
Geometrically necessary dislocations
General Materials Science
Austenite reconstruction
Dislocation
Composite material
Electron backscatter diffraction
Subjects
Details
- Language :
- English
- ISSN :
- 18728456 and 13596462
- Volume :
- 207
- Database :
- OpenAIRE
- Journal :
- Scripta Materialia
- Accession number :
- edsair.doi.dedup.....f6d1ae24fb9142559e2fabaed858cabb