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Study of the tribocorrosion behavior of aluminum alloy 7075 - T651 nitrided

Grant number: 16/26201-0
Support Opportunities:Scholarships abroad - Research Internship - Master's degree
Effective date (Start): September 01, 2017
Effective date (End): November 30, 2017
Field of knowledge:Engineering - Aerospace Engineering
Principal Investigator:Danieli Aparecida Pereira Reis
Grantee:Letícia Oliveira Rocha
Supervisor: Fatih Toptan
Host Institution: Instituto de Ciência e Tecnologia (ICT). Universidade Federal de São Paulo (UNIFESP). Campus São José dos Campos. São José dos Campos , SP, Brazil
Research place: Universidade do Minho (UMinho), Portugal  
Associated to the scholarship:15/19846-2 - Study of plasma nitriding and evaluation of fatigue life of 7075 - T651 aluminum alloy nitrided, BP.MS


The 7075 aluminum alloy in T651 condition is formed by a solid solution heat-treated and artificial aged, followed by stretching for stresses relief. This alloy presents properties that make it interesting to applications subject to high stress, such as aeronautical components. However, it has low surface properties of hardness, wear resistance and chemical stability The plasma nitriding is an alternative method of raising the surface hardness, fatigue resistance, wear resistance and corrosion resistance of alloys, improving the performance of the materials. This work aims to study the tribocorrosion behavior of the 7075-T651 aluminu m alloy (AA7075-T651) plasma nitrited. It will be evaluated properties like wear resistance and corrosion resistance of nitrided alloy compared to untreated alloy. It will be used AA7075 - T651 alloy cylindrical pellets without treatment and plasma nitrided in a chamber for nitriding in the Laboratory of Plasma and Processes of the Technological Institute of Aeronautics (ITA). The tribocorrosion tests of the AA7075-T651 sample with and without plasma nitriding treatment will be conducted at Department of Mechanical Engineering of University of Minho - Azurém Campus (Guimarães - Portugal).

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