Publicação
Library of Cu-CuAl compositions and mechanical properties produced by wire arc additive manufacturing
| Resumo: | Abstract Functionally Graded Material (FGM)s exhibit unique mechanical and physical prop- erties, resulting from gradual variations in their composition and microstructure, which makes them highly applicable in advanced engineering contexts. FGMs are utilised across a variety of industries and are specifically developed for aerospace, maritime, and energy applications. This dissertation forms part of a doctoral thesis in which a Cu-CuAl FGM is being developed. The objective of the present study is to create a library of different Cu- CuAl compositions. The samples for this library, featuring various compositions, are produced using Wire and Wire and Arc Additive Manufacturing (WAAM). WAAM is a technique that enables the production of complex geometries through precise management of material deposition rates, offering substantial benefits compared to traditional methods. The analysis of the samples mechanical behaviour was conducted by performing hardness tests, eddy current tests, and tensile tests with Digital Image Correlation (DIC). The mechanical properties for each Cu-CuAl percentage were calculated based on the strains recorded during the tensile tests, which were obtained using DIC. The results demonstrate that the samples produced by WAAM present a homogeneous mixture of the two alloys across all compositions. |
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| Autores principais: | Nunes, Beatriz Costa Leandro Dias |
| Assunto: | Copper Copper-Aluminium Alloy Wire and Arc Additive Manufacturing Functionally Graded Material Digital Image Correlation |
| Ano: | 2025 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade Nova de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório Institucional da UNL |
| Resumo: | Abstract Functionally Graded Material (FGM)s exhibit unique mechanical and physical prop- erties, resulting from gradual variations in their composition and microstructure, which makes them highly applicable in advanced engineering contexts. FGMs are utilised across a variety of industries and are specifically developed for aerospace, maritime, and energy applications. This dissertation forms part of a doctoral thesis in which a Cu-CuAl FGM is being developed. The objective of the present study is to create a library of different Cu- CuAl compositions. The samples for this library, featuring various compositions, are produced using Wire and Wire and Arc Additive Manufacturing (WAAM). WAAM is a technique that enables the production of complex geometries through precise management of material deposition rates, offering substantial benefits compared to traditional methods. The analysis of the samples mechanical behaviour was conducted by performing hardness tests, eddy current tests, and tensile tests with Digital Image Correlation (DIC). The mechanical properties for each Cu-CuAl percentage were calculated based on the strains recorded during the tensile tests, which were obtained using DIC. The results demonstrate that the samples produced by WAAM present a homogeneous mixture of the two alloys across all compositions. |
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