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Study of the Effects of Aging Treatment on Astroloy Processed via Hot Isostatic Pressing

The effect of aging treatment on Astroloy fabricated via hot isostatic pressing and subjected to super-, and sub- solvus solutioning has been investigated. The evolution of hardness and microstructural features were followed after each step of the treatment. Since this alloy is commonly subjected to...

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Detalles Bibliográficos
Autores principales: Bassini, Emilio, Cattano, Giulio, Marchese, Giulio, Biamino, Sara, Ugues, Daniele, Lombardi, Mariangela, Vallillo, Gianfranco, Picqué, Benjamin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6539100/
https://www.ncbi.nlm.nih.gov/pubmed/31075902
http://dx.doi.org/10.3390/ma12091517
Descripción
Sumario:The effect of aging treatment on Astroloy fabricated via hot isostatic pressing and subjected to super-, and sub- solvus solutioning has been investigated. The evolution of hardness and microstructural features were followed after each step of the treatment. Since this alloy is commonly subjected to a double aging treatment at two different temperatures, particular attention was given to the effectiveness of the first aging treatment compared to the second one. Coarsening and modification of the γ′ reinforcing system together with carbides formation were made the object of research. The cooling rate used after solutioning treatment was also kept into account. Finally, a model to describe secondary and ternary gamma prime coarsening upon aging treatments is presented.