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Effect of high energy electric pulse on microstructure and mechanical properties of pre-deformed SUS 304 ultra-thin strip.
- Source :
-
Materials Science & Engineering: A . Feb2024, Vol. 893, pN.PAG-N.PAG. 1p. - Publication Year :
- 2024
-
Abstract
- To improve the mechanical properties of the pre-deformed SUS 304 ultra-thin strip by regulating its microstructure, the paper uses high energy pulsed current to treat the pre-deformed SUS 304 ultra-thin strip. Uniaxial tensile samples with different pre-deformation (10%, 30%, 50%) are prepared by tensile testing machine and used to study the changes in microstructure and mechanical properties of the pre-deformed samples before and after the electric pulse treatment. The results show that the electric pulse treatment results in a complete recovery of plasticity and a 10% increase in elongation at break for the 10% pre-deformed sample, and leads to a 6.8% decrease in yield strength, a 13.2% increase in tensile strength and a 34.4% increase in elongation at break for the 50% pre-deformed sample. The electric pulse treatment causes recovery and static recrystallization of pre-deformed samples at lower temperatures, and some annealing twins are formed within the recrystallized grains. The electric pulse treatment reduces the dislocation density, refines the deformed grains, alleviates the {111} silk texture generated during pre-tensile deformation, and improves the anisotropy. It can be seen that the electric pulse treatment can significantly improve the mechanical properties of pre-deformed samples and promote the plastic deformation capacity of the SUS 304 ultra-thin strip. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09215093
- Volume :
- 893
- Database :
- Academic Search Index
- Journal :
- Materials Science & Engineering: A
- Publication Type :
- Academic Journal
- Accession number :
- 175452712
- Full Text :
- https://doi.org/10.1016/j.msea.2023.145364