Navegando por Palavras-chave "Plasma Nitriding"

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    Estudo Do Comportamento Em Fadiga E Corrosão Da Liga De Alumínio 7075 Submetida A Diferentes Tratamentos Térmicos E Nitretação A Plasma
    (Universidade Federal de São Paulo (UNIFESP), 2018-02-26) Camarinha, Maria Gabriela Galvao [UNIFESP]; Reis, Danieli Aparecida Pereira [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    Aluminum Alloys Found Their Main Application In Structural Components Of Airplanes, Which Present As Predominant Failure Mode The Fatigue Process. The Great Presence Of Airports In Coastal Regions Makes Relevant The Study Of The Corrosive Process Of Aluminum Alloys Since The Localized Corrosion Causes Adverse Effects On Mechanical Properties Of The Material. In Order To Improve The Fatigue And Corrosion Behavior Of 7075-T6 Aluminum Alloy, This Work Evaluated And Compared The Effect Of Rra Thermal Treatment And Plasma Nitriding On The Mechanical And Corrosion Properties Of The Aa7075-T6 Alloy. Studies Were Carried Out Under Conditions Of Tensile Fatigue (R = 0.1), With Smooth And Notched Test Bodies, And Corrosion In 0.6 M Nacl Medium At 25 ° C And Ph~6. Microstructural And Aln Layer Analyzes Were Performed Using Optical Microscopy, Scanning And Transmission Electron Microscopy, Profilometry And Notch Sensitivity. The Microstructural Analysis Showed That The Rra Heat Treatment Maintained The Microstructure Wit