Análise do comportamento de fadiga da liga de alumínio 7075 solubilizado e envelhecido

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dc.contributor.advisorCouto, Antonio Augusto
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/2893737202813850por
dc.contributor.authorPaz Gonzalez, José Fernando
dc.creator.Latteshttp://lattes.cnpq.br/5679352968235376por
dc.date.accessioned2017-04-20T15:38:20Z
dc.date.accessioned2020-05-28T18:07:36Z
dc.date.available2020-05-28T18:07:36Z
dc.date.issued2016-08-09
dc.description.abstractIn recent decades the aluminum had a great evolution since the beginning of his story that came to have a greater value than gold, to the present day that it is used in our days from a tin of soda to key parts of an airplane. With the growing need in various industrial segments, especially the aeronautical and automobile industries, wherein the weight reduction is a concern, the study of this material becomes important. This work has as objective the study of aluminum alloy 7075 solubilized and artificially aging were studied in which the main mechanical behavior of this material. It was performed the hardness, tensile tests and the focus, fatigue test, in which was observed a hardness of 230 HV and mean tensile strength of 676 MPa and yield strength of 615 MPa. The study of fatigue behavior was done in a rotating bending testing machine at ambient temperature to developing the Wöhler curve also known as S-N curve (tension x No. of cycles), who showed the characteristic of non-ferrous materials An specimen reached number of cycle greater than 8,4x106 with the stress of 135 MPa. The fracture surfaces showed the typical characteristics of crack propagation and ductile overload fracture and showed differences in the type of crack propagation in low cycle when compared with medium and high cycle, besides that was showed ratchet marks and fatigue stretch when observed with SEM. It was observed the presence of dimples associated with the precipitates.eng
dc.formatapplication/pdf*
dc.identifier.citationPAZ GONZALEZ, José Fernando. Análise do comportamento de fadiga da liga de alumínio 7075 solubilizado e envelhecido. 2016. 85 f. Dissertação (Engenharia de Materiais) - Universidade Presbiteriana Mackenzie, São Paulo .por
dc.identifier.urihttp://dspace.mackenzie.br/handle/10899/24231
dc.keywordssolubilizationeng
dc.keywordsmetallographyeng
dc.keywordsmicrographeng
dc.keywordsmetal materialseng
dc.keywordswohler curveeng
dc.keywordsheat treatmenteng
dc.keywordsflexo rotaryeng
dc.languageporpor
dc.publisherUniversidade Presbiteriana Mackenziepor
dc.rightsAcesso Abertopor
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectsolubilizaçãopor
dc.subjectmetalografiapor
dc.subjectmicrografiapor
dc.subjectmateriais metálicospor
dc.subjectcurva de Wohlerpor
dc.subjecttratamento térmicopor
dc.subjectflexo rotativapor
dc.subject.cnpqCNPQ::ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICApor
dc.thumbnail.urlhttp://tede.mackenzie.br/jspui/retrieve/14051/Jos%c3%a9%20Fernando%20Paz%20Gonzalez.pdf.jpg*
dc.titleAnálise do comportamento de fadiga da liga de alumínio 7075 solubilizado e envelhecidopor
dc.typeDissertaçãopor
local.contributor.board1Vatavuk, Jan
local.contributor.board1Latteshttp://lattes.cnpq.br/2607688973456560por
local.contributor.board2Lima, Nelson Batista de
local.contributor.board2Latteshttp://lattes.cnpq.br/6675251190520162por
local.publisher.countryBrasilpor
local.publisher.departmentEscola de Engenharia Mackenzie (EE)por
local.publisher.initialsUPMpor
local.publisher.programEngenharia de Materiaispor
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