portada Microstructure Modeling of 3rd Generation Disk Alloy (en Inglés)

Microstructure Modeling of 3rd Generation Disk Alloy (en Inglés)

Formato

Libro Físico

Autor

Nasa Technical Reports Server (Ntrs)

Herng-Jeng Jou

Editorial

Bibliogov

Idioma

Inglés

N° páginas

Encuadernación

Tapa Blanda

Dimensiones

24.6x18.9x0.2 cm

Peso

0.08 kg.

ISBN13

9781287226680

Categorías

Política y gobierno

Microstructure Modeling of 3rd Generation Disk Alloy (en Inglés)

Nasa Technical Reports Server (Ntrs) (Autor) · Herng-Jeng Jou (Autor) · Bibliogov · Tapa Blanda

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Reseña del libro "Microstructure Modeling of 3rd Generation Disk Alloy (en Inglés)"

The objective of this initiative, funded by NASA's Aviation Safety Program, is to model, validate, and predict, with high fidelity, the microstructural evolution of third-generation high-refractory Ni-based disc superalloys during heat treating and service conditions. This initiative is a natural extension of the DARPA-AIM (Accelerated Insertion of Materials) initiative with GE/Pratt-Whitney and with other process simulation tools. Strong collaboration with the NASA Glenn Research Center (GRC) is a key component of this initiative and the focus of this program is on industrially relevant disk alloys and heat treatment processes identified by GRC. Employing QuesTek s Computational Materials Dynamics technology and PrecipiCalc precipitation simulator, physics-based models are being used to achieve high predictive accuracy and precision. Combining these models with experimental data and probabilistic analysis, "virtual alloy design" can be performed. The predicted microstructures can be optimized to promote desirable features and concurrently eliminate nondesirable phases that can limit the reliability and durability of the alloys. The well-calibrated and well-integrated software tools that are being applied under the proposed program will help gas turbine disk alloy manufacturers, processing facilities, and NASA, to efficiently and effectively improve the performance of current and future disk materials.