MICROHARDNESS STUDY IN ALUMINUM AND COPPER BASE ALLOYS
In the present work we analyze the variations in microhardness as a function of both microstructure and load applied in Al-Cu, Al-Si, Al-Li, Al-Mg, Al-Zn and Cu-Zn alloys directionally solidified. The microstructures analyzed were columnar, equiaxed and columnar to equiaxed (CET) transition zones. M...
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| Format: | Online |
| Language: | Spanish |
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Facultad de Ciencias Exactas, Químicas y Naturales
2004
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| Online Access: | https://www.fceqyn.unam.edu.ar/recyt/index.php/recyt/article/view/413 |
| _version_ | 1814554247085162496 |
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| author | Area, A. E. Caram, R. Schvezov, C. E. |
| author_facet | Area, A. E. Caram, R. Schvezov, C. E. |
| author_sort | Area, A. E. |
| collection | Revista de Ciencia y Tecnologia RECyT |
| description | In the present work we analyze the variations in microhardness as a function of both microstructure and load applied in Al-Cu, Al-Si, Al-Li, Al-Mg, Al-Zn and Cu-Zn alloys directionally solidified. The microstructures analyzed were columnar, equiaxed and columnar to equiaxed (CET) transition zones. Microhardness measurements were made at room temperature using a Buehler microdurometer and loads between 10 and 1000 gf were used. Furthermore, variations in microhardness as a function of concentration and as a function of both sample length and width are reported. We noticed that the microhardness values decrease when the load increase reaching almost constant values at higher loads. We observed that bulk alloys have greater microhardness values than those directionally solidified. The experimental results are analyzed and discussed. |
| format | Online |
| id | ojs-article-413 |
| institution | Facultad de Ciencias Exactas Quimicas y Naturales |
| language | Spanish |
| publishDate | 2004 |
| publisher | Facultad de Ciencias Exactas, Químicas y Naturales |
| record_format | ojs |
| spelling | ojs-article-4132020-03-06T00:42:22Z MICROHARDNESS STUDY IN ALUMINUM AND COPPER BASE ALLOYS ESTUDIO DE MICRODUREZA EN ALEACIONES BASE ALUMINIO Y COBRE Area, A. E. Caram, R. Schvezov, C. E. Dureza transición columnar a equiaxial aleaciones base aluminio aleaciones base cobre Hardness columnar to equiaxed transition aluminum alloys copper alloy In the present work we analyze the variations in microhardness as a function of both microstructure and load applied in Al-Cu, Al-Si, Al-Li, Al-Mg, Al-Zn and Cu-Zn alloys directionally solidified. The microstructures analyzed were columnar, equiaxed and columnar to equiaxed (CET) transition zones. Microhardness measurements were made at room temperature using a Buehler microdurometer and loads between 10 and 1000 gf were used. Furthermore, variations in microhardness as a function of concentration and as a function of both sample length and width are reported. We noticed that the microhardness values decrease when the load increase reaching almost constant values at higher loads. We observed that bulk alloys have greater microhardness values than those directionally solidified. The experimental results are analyzed and discussed. En el presente trabajo se realiza un estudio de la variación de la microdureza con las diferentes estructuras formadas, columnar, equiaxial y con transición de estructura columnar a equiaxial, TCE, en aleaciones Al - Cu, Al - Si, Al - Li, Al - Mg, Al-Zn y Cu - Zn, solidificadas direccionalmente empleando diferentes cargas. Las medidas de microdureza fueron realizadas a temperatura ambiente con un microdurómetro Buehler, con cargas entre 10 y 1000 gf. Se analizaron las variaciones de la microdureza en función de la longitud y el ancho de las probetas y, además, en función de la concentración. Se observó que los valores de microdureza tienden a disminuir con el aumento de la carga, por lo tanto, tienen una tendencia a permanecer constantes con cargas más elevadas. También se observó que las aleaciones en el estado bruto de fusión exhiben una mayor microdureza que cuando se las solidifica direccionalmente. Se analizan y discuten los resultados obtenidos. Facultad de Ciencias Exactas, Químicas y Naturales 2004-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.fceqyn.unam.edu.ar/recyt/index.php/recyt/article/view/413 Argentine Journal of Science and Technology; Vol. 6 No. 1 (2004); 29-38 Revista de Ciencia y Tecnología; Vol. 6 Núm. 1 (2004); 29-38 1851-7587 0329-8922 spa https://www.fceqyn.unam.edu.ar/recyt/index.php/recyt/article/view/413/336 Derechos de autor 2004 Revista de Ciencia y Tecnología |
| spellingShingle | Dureza transición columnar a equiaxial aleaciones base aluminio aleaciones base cobre Hardness columnar to equiaxed transition aluminum alloys copper alloy Area, A. E. Caram, R. Schvezov, C. E. MICROHARDNESS STUDY IN ALUMINUM AND COPPER BASE ALLOYS |
| title | MICROHARDNESS STUDY IN ALUMINUM AND COPPER BASE ALLOYS |
| title_alt | ESTUDIO DE MICRODUREZA EN ALEACIONES BASE ALUMINIO Y COBRE |
| title_full | MICROHARDNESS STUDY IN ALUMINUM AND COPPER BASE ALLOYS |
| title_fullStr | MICROHARDNESS STUDY IN ALUMINUM AND COPPER BASE ALLOYS |
| title_full_unstemmed | MICROHARDNESS STUDY IN ALUMINUM AND COPPER BASE ALLOYS |
| title_short | MICROHARDNESS STUDY IN ALUMINUM AND COPPER BASE ALLOYS |
| title_sort | microhardness study in aluminum and copper base alloys |
| topic | Dureza transición columnar a equiaxial aleaciones base aluminio aleaciones base cobre Hardness columnar to equiaxed transition aluminum alloys copper alloy |
| topic_facet | Dureza transición columnar a equiaxial aleaciones base aluminio aleaciones base cobre Hardness columnar to equiaxed transition aluminum alloys copper alloy |
| url | https://www.fceqyn.unam.edu.ar/recyt/index.php/recyt/article/view/413 |
| work_keys_str_mv | AT areaae microhardnessstudyinaluminumandcopperbasealloys AT caramr microhardnessstudyinaluminumandcopperbasealloys AT schvezovce microhardnessstudyinaluminumandcopperbasealloys AT areaae estudiodemicrodurezaenaleacionesbasealuminioycobre AT caramr estudiodemicrodurezaenaleacionesbasealuminioycobre AT schvezovce estudiodemicrodurezaenaleacionesbasealuminioycobre |
FIRST STUDIES ON COLUMNAR-TO-EQUIAXED TRANSITION IN ALUMINUM-SILICON-COPPER AND ALUMINUM-COPPER ALLOYS