Experimental development of gas turbine repair through direct energy deposition using lasers

• Grant number: 23/06827-6
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: September 01, 2023
• End date: July 31, 2025
• Field of knowledge: Engineering - Mechanical Engineering - Manufacturing Processes
• Principal Investigator: Milton Sergio Fernandes de Lima
• Grantee: Caroline Cristine de Andrade Ferreira
• Host Institution: Instituto de Estudos Avançados (IEAv). Departamento de Ciência e Tecnologia Aeroespacial (DCTA). Ministério da Defesa (Brasil). São José dos Campos , SP, Brazil

Abstract

Gas turbine repair through additive laser manufacturing is an economically viable alternative due to the high value of these components. The present study aims to develop a laser direct energy deposition technique for the repair of stainless steel blades in order to return them to their common use. In addition to the additive part, the high speed machining technique will be used for surface finishing of the part. The project comprises studying the process parameters, the microstructure of the alloy formed and its mechanical characteristics, both in the state of manufacture and in that state after exposure at high temperatures. (AU)