Publication result detail

Revealing the strengthening contribution of stacking faults, dislocations and grain boundaries in severely deformed LPBF AlSi10Mg alloy

SNOPIŃSKI, P.; KOTOUL, M.; PETRUŠKA, J.; RUSZ, S.; ŻABA, K.; HILŠER, O.

Original Title

Revealing the strengthening contribution of stacking faults, dislocations and grain boundaries in severely deformed LPBF AlSi10Mg alloy

English Title

Revealing the strengthening contribution of stacking faults, dislocations and grain boundaries in severely deformed LPBF AlSi10Mg alloy

Type

WoS Article

Original Abstract

In this study, microstructural features direct metal laser melted (DMLM) aluminium–siliconmagnesium (AlSi10Mg) are investigated using advanced transmission electron microscopy (TEM) and high-resolution TEM (HRTEM). The focus is on post-processing by ECAP (Equal Channel Angular Pressing) and its effects on grain refinement, stacking fault formation and dislocation accumulation. In addition, the strength enhancing role of stacking faults is for the first time quantified. The results show that ECAP can increase the yield strength from 294 to 396 MPa, while the elongation increases from 2.4% to 6%. These results show that ECAP processing offers a new approach for producing AlSi10Mg products with improved strength and ductility.

English abstract

In this study, microstructural features direct metal laser melted (DMLM) aluminium–siliconmagnesium (AlSi10Mg) are investigated using advanced transmission electron microscopy (TEM) and high-resolution TEM (HRTEM). The focus is on post-processing by ECAP (Equal Channel Angular Pressing) and its effects on grain refinement, stacking fault formation and dislocation accumulation. In addition, the strength enhancing role of stacking faults is for the first time quantified. The results show that ECAP can increase the yield strength from 294 to 396 MPa, while the elongation increases from 2.4% to 6%. These results show that ECAP processing offers a new approach for producing AlSi10Mg products with improved strength and ductility.

Keywords

Equal Channel Angular Pressing;grain refinement;stacking fault; dislocation accumulation;transmission electron microscopy

Key words in English

Equal Channel Angular Pressing;grain refinement;stacking fault; dislocation accumulation;transmission electron microscopy

Authors

SNOPIŃSKI, P.; KOTOUL, M.; PETRUŠKA, J.; RUSZ, S.; ŻABA, K.; HILŠER, O.

RIV year

2024

Released

27.09.2023

Publisher

Springer Nature

ISBN

2045-2322

Periodical

Scientific Reports

Volume

13

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

16

Pages count

16

URL

https://www.nature.com/articles/s41598-023-43448-5

Full text in the Digital Library

http://hdl.handle.net/11012/244174

BibTex

@article{BUT185055,
  author="Przemysław {Snopiński} and Michal {Kotoul} and Jindřich {Petruška} and Stanislav {Rusz} and Krzysztof {Żaba} and Ondřej {Hilšer}",
  title="Revealing the strengthening  contribution of stacking faults, dislocations and grain boundaries in severely deformed LPBF AlSi10Mg alloy",
  journal="Scientific Reports",
  year="2023",
  volume="13",
  number="1",
  pages="1--16",
  doi="10.1038/s41598-023-43448-5",
  issn="2045-2322",
  url="https://www.nature.com/articles/s41598-023-43448-5"
}

Documents

s41598-023-43448-5