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| Indexado |
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| DOI | 10.3390/MET13030459 | ||||
| Año | 2023 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Cu-11Al-5Ni-4Fe wt% alloy is processed by additive manufacturing using the laser powder bed fusion (LPBF) technique in two building orientations (90 degrees and 0 degrees to the building platform) to determine which laser parameters are more critical to obtain better mechanical properties. The resulting printed material is characterized microstructurally and mechanically by XRD, optical microscope, and under compressive stress. The results indicate that the alloy achieved good densification and mechanical properties similar to an as-cast counterpart. The as-built microstructure comprises acicular martensite and other thermodynamic equilibrium phases, while exothermic and endothermic curves show a poor response to temperature induce phase transformation at similar to 350 degrees C. The mechanical results show that it is possible to reach a compressive strength of 1300 MPa, up to 20% strain, and better mechanical properties in those samples fabricated in a vertical direction (90 degrees) than the horizontal. The volumetric energy density also affects the samples' maximum strength and superficial roughness.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Guerra, Carolina | Mujer |
Pontificia Universidad Católica de Chile - Chile
|
| 2 | RAMOS-GREZ, JORGE ANDRES | Hombre |
Pontificia Universidad Católica de Chile - Chile
|
| 3 | La Fe-Perdomo, Ivan | Hombre |
Pontificia Universidad Católica de Chile - Chile
|
| 4 | Castillo, A. | - |
Pontificia Universidad Católica de Chile - Chile
|
| 5 | WALCZAK, MAGDALENA MARTA | Mujer |
Pontificia Universidad Católica de Chile - Chile
|
| Fuente |
|---|
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| Pontificia Universidad Católica de Chile |
| ANID FONDECYT FONDEQUIP |
| Vejchewin Research Institute |
| Agradecimiento |
|---|
| The authors thank ANID FONDECYT FONDEQUIP EQM180081, EQM150016 and EQM150101. PFCHA/DOCTORADO NACIONAL/2019-21190520, FONDECYT grant N° 1201068, and to ANID POSTDOC N° 310432. Also, to the VRI (Pontificia Universidad Católica de Chile) scholarship to finance the doctorate student A. Castillo and the SIMET research centre. |