1. A Microstructure-Based Model for Creep of Gamma Prime Strengthened Nickel-Based Superalloys
- Author
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Arthur S. Peck, Adarsh Shukla, T. Vishwanath, Daniel Wei, Kenneth Rees Bain, Girish Shastry, Francesco Mastromatteo, Michael Douglas Arnett, Sanjay Kumar Sondhi, Sachin Nalawade, Jon Conrad Schaeffer, Ramkumar Oruganti, Andrew Ezekiel Wessman, Andrew Martin Powell, Sanket Sarkar, and K. G. V. Sivakumar
- Subjects
Materials science ,Mechanical Engineering ,Metallurgy ,chemistry.chemical_element ,02 engineering and technology ,Nickel based ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Microstructure ,Prime (order theory) ,Grain size ,Superalloy ,Stress (mechanics) ,Condensed Matter::Materials Science ,Nickel ,020303 mechanical engineering & transports ,0203 mechanical engineering ,chemistry ,Creep ,Mechanics of Materials ,General Materials Science ,0210 nano-technology - Abstract
This paper outlines a microstructure-based model relating gamma prime microstructure and grain size of Ni-base alloys to their creep behavior. The ability of the model to explain creep of multiple superalloys with a single equation and parameter set is demonstrated. The only parameters that are changed from alloy to alloy are related to the gamma prime characteristics and grain size. This model also allows prediction of creep performance as a function of heat treatment and explains some apparently contradictory data from the literature.
- Published
- 2018
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