Crystallographic orientation-spray formed hypereutectic aluminium-silicon alloys
Aluminium-silicon alloys have been wide accepted in the automotive, electric and aerospace industries. Preferred orientation is a very common condition for metals and alloys. Particularly, aluminium induces texture during the forming process. The preparation of an aggregate with completely random crystal orientation is a difficult task. The present work was undertaken to analyse the texture by X-ray diffraction techniques, of three spray formed hypereutectic Al-Si alloys. Samples were taken from a billet of an experimental alloy (alloy 1) and were subsequently hot-rolled and cold-rolled (height reduction), 72% and 70%, respectively. The other used samples, alloys 2 and 3, were taken from cylinders liners. The results from the Laue camera showed texture just in the axial direction of alloy 3. The pole figures also indicated the presence of a typical low intensity deformation texture, especially for alloy 3. The spray formed microstructure, which is very fine, hinders the Al-Si texture formation during mechanical work.
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ABM, ABC, ABPol
2005
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oai:scielo:S1516-143920050002000172006-02-06Crystallographic orientation-spray formed hypereutectic aluminium-silicon alloysSantos,Hamilta de OliveiraSerna,Marilene MorelliLima,Nelson Batista deCosta,IsoldaRossi,Jesualdo Luiz spray forming cylinder liners Al-Si hypereutectic alloys Aluminium-silicon alloys have been wide accepted in the automotive, electric and aerospace industries. Preferred orientation is a very common condition for metals and alloys. Particularly, aluminium induces texture during the forming process. The preparation of an aggregate with completely random crystal orientation is a difficult task. The present work was undertaken to analyse the texture by X-ray diffraction techniques, of three spray formed hypereutectic Al-Si alloys. Samples were taken from a billet of an experimental alloy (alloy 1) and were subsequently hot-rolled and cold-rolled (height reduction), 72% and 70%, respectively. The other used samples, alloys 2 and 3, were taken from cylinders liners. The results from the Laue camera showed texture just in the axial direction of alloy 3. The pole figures also indicated the presence of a typical low intensity deformation texture, especially for alloy 3. The spray formed microstructure, which is very fine, hinders the Al-Si texture formation during mechanical work.info:eu-repo/semantics/openAccessABM, ABC, ABPolMaterials Research v.8 n.2 20052005-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000200017en10.1590/S1516-14392005000200017 |
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Santos,Hamilta de Oliveira Serna,Marilene Morelli Lima,Nelson Batista de Costa,Isolda Rossi,Jesualdo Luiz |
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Santos,Hamilta de Oliveira Serna,Marilene Morelli Lima,Nelson Batista de Costa,Isolda Rossi,Jesualdo Luiz Crystallographic orientation-spray formed hypereutectic aluminium-silicon alloys |
author_facet |
Santos,Hamilta de Oliveira Serna,Marilene Morelli Lima,Nelson Batista de Costa,Isolda Rossi,Jesualdo Luiz |
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Santos,Hamilta de Oliveira |
title |
Crystallographic orientation-spray formed hypereutectic aluminium-silicon alloys |
title_short |
Crystallographic orientation-spray formed hypereutectic aluminium-silicon alloys |
title_full |
Crystallographic orientation-spray formed hypereutectic aluminium-silicon alloys |
title_fullStr |
Crystallographic orientation-spray formed hypereutectic aluminium-silicon alloys |
title_full_unstemmed |
Crystallographic orientation-spray formed hypereutectic aluminium-silicon alloys |
title_sort |
crystallographic orientation-spray formed hypereutectic aluminium-silicon alloys |
description |
Aluminium-silicon alloys have been wide accepted in the automotive, electric and aerospace industries. Preferred orientation is a very common condition for metals and alloys. Particularly, aluminium induces texture during the forming process. The preparation of an aggregate with completely random crystal orientation is a difficult task. The present work was undertaken to analyse the texture by X-ray diffraction techniques, of three spray formed hypereutectic Al-Si alloys. Samples were taken from a billet of an experimental alloy (alloy 1) and were subsequently hot-rolled and cold-rolled (height reduction), 72% and 70%, respectively. The other used samples, alloys 2 and 3, were taken from cylinders liners. The results from the Laue camera showed texture just in the axial direction of alloy 3. The pole figures also indicated the presence of a typical low intensity deformation texture, especially for alloy 3. The spray formed microstructure, which is very fine, hinders the Al-Si texture formation during mechanical work. |
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ABM, ABC, ABPol |
publishDate |
2005 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000200017 |
work_keys_str_mv |
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