Avaliação mecânica e microestrutural de ligas do sistema CuAlMn passiveís do efeito memória de forma submetidas a tratamento do crescimento anormal de grão

Data
2018-09-13
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Universidade Federal Rural do Semi-Árido

Resumo

The objective of this paper was to investigate the influence of different grain sizes obtained by refinement and treatment of abnormal grain growth on the mechanical properties of CuAlMn, CuAlMnNb and CuAlMnTiB polycrystalline alloys. The alloys were prepared in an oven under an ambient atmosphere, thermally treated to obtain coarse grains and then characterized by light microscopy, hardness tests. It was noticed that activation of the abnormal grain growth is related to the lamination, while the addition of inoculants has an effect on its hardness. Alloys with refiners showed to be less ductile.


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Costa (2018) (COSTA, 2018)