Microstructure and texture evolution in laser Shock Peened martensitic NiTi shape memory alloy
The Laser Shock Peening (LSP) is commonly used to strengthen the surface of materials. However, the microstructures after LSP impact are complex due to the intense forces involved. In this study, we explore how martensitic microstructures evolve in a half cylinder of NiTi under LSP impact using the...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
|
| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127524009304 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841553879373709312 |
|---|---|
| author | J.F. Xiao Y.D. Jing R. Esmaeilzadeh C. Cayron R.E. Logé |
| author_facet | J.F. Xiao Y.D. Jing R. Esmaeilzadeh C. Cayron R.E. Logé |
| author_sort | J.F. Xiao |
| collection | DOAJ |
| description | The Laser Shock Peening (LSP) is commonly used to strengthen the surface of materials. However, the microstructures after LSP impact are complex due to the intense forces involved. In this study, we explore how martensitic microstructures evolve in a half cylinder of NiTi under LSP impact using the Electron Backscattered Diffraction (EBSD) technique. A gradient of orientation of martensite is observed after LSP impact: the upper layers show highly oriented martensite, characterized by blocky shapes; while the lower layers display more uniform and needle-like martensitic structures. To better understand these microstructural changes, we used Finite Element (FE) simulations to analyze the stress distribution caused by the LSP. From the simulated stress conditions, the reorientation and changes of microstructures of the martensite was satisfactorily predicted by using the Interaction Work (IW) model. Overall, this comprehensive analysis provides valuable insights into the understanding of microstructural changes induced by LSP impact in martensitic NiTi alloys. |
| format | Article |
| id | doaj-art-38c00d4f6b334fc3b6dbdef649257f58 |
| institution | Kabale University |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-38c00d4f6b334fc3b6dbdef649257f582025-01-09T06:12:24ZengElsevierMaterials & Design0264-12752025-01-01249113555Microstructure and texture evolution in laser Shock Peened martensitic NiTi shape memory alloyJ.F. Xiao0Y.D. Jing1R. Esmaeilzadeh2C. Cayron3R.E. Logé4Corresponding author.; Laboratory of Thermomechanical Metallurgy (LMTM), PX Group Chair, Ecole Polytechnique Fédérale de Lausanne (EPFL), Rue de la Maladière 71b, Neuchâtel 2002, SwitzerlandLaboratory of Thermomechanical Metallurgy (LMTM), PX Group Chair, Ecole Polytechnique Fédérale de Lausanne (EPFL), Rue de la Maladière 71b, Neuchâtel 2002, SwitzerlandLaboratory of Thermomechanical Metallurgy (LMTM), PX Group Chair, Ecole Polytechnique Fédérale de Lausanne (EPFL), Rue de la Maladière 71b, Neuchâtel 2002, SwitzerlandLaboratory of Thermomechanical Metallurgy (LMTM), PX Group Chair, Ecole Polytechnique Fédérale de Lausanne (EPFL), Rue de la Maladière 71b, Neuchâtel 2002, SwitzerlandLaboratory of Thermomechanical Metallurgy (LMTM), PX Group Chair, Ecole Polytechnique Fédérale de Lausanne (EPFL), Rue de la Maladière 71b, Neuchâtel 2002, SwitzerlandThe Laser Shock Peening (LSP) is commonly used to strengthen the surface of materials. However, the microstructures after LSP impact are complex due to the intense forces involved. In this study, we explore how martensitic microstructures evolve in a half cylinder of NiTi under LSP impact using the Electron Backscattered Diffraction (EBSD) technique. A gradient of orientation of martensite is observed after LSP impact: the upper layers show highly oriented martensite, characterized by blocky shapes; while the lower layers display more uniform and needle-like martensitic structures. To better understand these microstructural changes, we used Finite Element (FE) simulations to analyze the stress distribution caused by the LSP. From the simulated stress conditions, the reorientation and changes of microstructures of the martensite was satisfactorily predicted by using the Interaction Work (IW) model. Overall, this comprehensive analysis provides valuable insights into the understanding of microstructural changes induced by LSP impact in martensitic NiTi alloys.http://www.sciencedirect.com/science/article/pii/S0264127524009304NiTi alloysLaser Shock Peening (LSP)MartensiteMicrostructure |
| spellingShingle | J.F. Xiao Y.D. Jing R. Esmaeilzadeh C. Cayron R.E. Logé Microstructure and texture evolution in laser Shock Peened martensitic NiTi shape memory alloy Materials & Design NiTi alloys Laser Shock Peening (LSP) Martensite Microstructure |
| title | Microstructure and texture evolution in laser Shock Peened martensitic NiTi shape memory alloy |
| title_full | Microstructure and texture evolution in laser Shock Peened martensitic NiTi shape memory alloy |
| title_fullStr | Microstructure and texture evolution in laser Shock Peened martensitic NiTi shape memory alloy |
| title_full_unstemmed | Microstructure and texture evolution in laser Shock Peened martensitic NiTi shape memory alloy |
| title_short | Microstructure and texture evolution in laser Shock Peened martensitic NiTi shape memory alloy |
| title_sort | microstructure and texture evolution in laser shock peened martensitic niti shape memory alloy |
| topic | NiTi alloys Laser Shock Peening (LSP) Martensite Microstructure |
| url | http://www.sciencedirect.com/science/article/pii/S0264127524009304 |
| work_keys_str_mv | AT jfxiao microstructureandtextureevolutioninlasershockpeenedmartensiticnitishapememoryalloy AT ydjing microstructureandtextureevolutioninlasershockpeenedmartensiticnitishapememoryalloy AT resmaeilzadeh microstructureandtextureevolutioninlasershockpeenedmartensiticnitishapememoryalloy AT ccayron microstructureandtextureevolutioninlasershockpeenedmartensiticnitishapememoryalloy AT reloge microstructureandtextureevolutioninlasershockpeenedmartensiticnitishapememoryalloy |