Machine Learning Accelerated First Principles Predictions Of The Stability And Mechanical Properties Of L12 Strengthened Cobalt Based Superalloys PDF Download
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Author | : Shengkun Xi |
Publisher | : OAE Publishing Inc. |
Total Pages | : 20 |
Release | : 2022-09-20 |
Genre | : Technology & Engineering |
ISBN | : |
Download Machine learning-accelerated first-principles predictions of the stability and mechanical properties of L12-strengthened cobalt-based superalloys Book in PDF, ePub and Kindle
As promising next-generation candidates for applications in aero-engines, L12-strengthened cobalt (Co)-based superalloys have attracted extensive attention. However, the L12 strengthening phase in first-generation Co-Al-W-based superalloys is metastable, and both its solvus temperature and mechanical properties still need improvement. Therefore, it is necessary to discover new L12-strengthened Co-based superalloy systems with a stable L12 phase by exploring the effect of alloying elements on their stability. Traditional first-principles calculations are capable of providing the crystal structure and mechanical properties of the L12 phase doped by transition metals but suffer from low efficiency and relatively high computational costs. The present study combines machine learning (ML) with first-principles calculations to accelerate crystal structure and mechanical property predictions, with the latter providing both the training and validation datasets. Three ML models are established and trained to predict the occupancy of alloying elements in the supercell and the stability and mechanical properties of the L12 phase. The ML predictions are evaluated using first-principles calculations and the accompanying data are used to further refine the ML models. Our ML-accelerated first-principles calculation approach offers more efficient predictions of the crystal structure and mechanical properties for Co-V-Ta- and Co-Al-V-based systems than the traditional counterpart. This approach is applicable to expediting crystal structure and mechanical property calculations and thus the design and discovery of other advanced materials beyond Co-based superalloys.
Author | : A. L. Mincher |
Publisher | : |
Total Pages | : 168 |
Release | : 1966 |
Genre | : Cobalt alloys |
ISBN | : |
Download Research on Dispersion Strengthened Cobalt-base Alloys Book in PDF, ePub and Kindle
Cobalt-base alloys containing fine ThO2 dispersions were processed to round bar by powder metallurgy techniques and evaluated for physical and mechanical properties. The ThO2 dispersion increased the sluggishness of the allotropic transformation in cobalt. Strength at elevated temperature was improved by (1) increased ThO2, (2) a minor (0.2%) zirconium addition, and (3) increasing amount of secondary work. Oxidation resistance of the Co-ThO2 and Co-Ni-ThO2 alloys was similar to pure cobalt with scaling rates an order of magnitude greater than TD Nickel at 2200F. A chromium addition improved oxidation behavior. Preliminary evaluation on the chromium-containing alloys gave 2000 F tensile strengths of 10,000 psi or less, lower than on the alloys without chromium. Certain of these alloys with chromium recrystallized on high temperature annealing, and this was accompanied by an increase in 2000 F tensile strength. (Author).
Author | : Roger C. Reed |
Publisher | : Cambridge University Press |
Total Pages | : 363 |
Release | : 2008-07-31 |
Genre | : Technology & Engineering |
ISBN | : 1139458639 |
Download The Superalloys Book in PDF, ePub and Kindle
Superalloys are unique high-temperature materials used in gas turbine engines, which display excellent resistance to mechanical and chemical degradation. This book introduces the metallurgical principles which have guided their development. Suitable for graduate students and researchers, it includes exercises and additional resources at www.cambridge.org/9780521859042.
Author | : |
Publisher | : |
Total Pages | : 304 |
Release | : 1960 |
Genre | : Nuclear fuels |
ISBN | : |
Download Reactor Core Materials Book in PDF, ePub and Kindle
Author | : Bonnie J. McBride |
Publisher | : |
Total Pages | : 300 |
Release | : 2002 |
Genre | : Chemical equilibrium |
ISBN | : |
Download NASA Glenn Coefficients for Calculating Thermodynamic Properties of Individual Species Book in PDF, ePub and Kindle
Author | : Sammy Tin |
Publisher | : Springer Nature |
Total Pages | : 1098 |
Release | : 2020-08-28 |
Genre | : Technology & Engineering |
ISBN | : 3030518345 |
Download Superalloys 2020 Book in PDF, ePub and Kindle
The 14th International Symposium on Superalloys (Superalloys 2020) highlights technologies for lifecycle improvement of superalloys. In addition to the traditional focus areas of alloy development, processing, mechanical behavior, coatings, and environmental effects, this volume includes contributions from academia, supply chain, and product-user members of the superalloy community that highlight technologies that contribute to improving manufacturability, affordability, life prediction, and performance of superalloys.
Author | : Yuan Cheng |
Publisher | : Springer Nature |
Total Pages | : 231 |
Release | : 2021-03-26 |
Genre | : Technology & Engineering |
ISBN | : 3030683109 |
Download Artificial Intelligence for Materials Science Book in PDF, ePub and Kindle
Machine learning methods have lowered the cost of exploring new structures of unknown compounds, and can be used to predict reasonable expectations and subsequently validated by experimental results. As new insights and several elaborative tools have been developed for materials science and engineering in recent years, it is an appropriate time to present a book covering recent progress in this field. Searchable and interactive databases can promote research on emerging materials. Recently, databases containing a large number of high-quality materials properties for new advanced materials discovery have been developed. These approaches are set to make a significant impact on human life and, with numerous commercial developments emerging, will become a major academic topic in the coming years. This authoritative and comprehensive book will be of interest to both existing researchers in this field as well as others in the materials science community who wish to take advantage of these powerful techniques. The book offers a global spread of authors, from USA, Canada, UK, Japan, France, Russia, China and Singapore, who are all world recognized experts in their separate areas. With content relevant to both academic and commercial points of view, and offering an accessible overview of recent progress and potential future directions, the book will interest graduate students, postgraduate researchers, and consultants and industrial engineers.
Author | : Xingbo Liu |
Publisher | : Springer |
Total Pages | : 440 |
Release | : 2017-03-06 |
Genre | : Technology & Engineering |
ISBN | : 3319523333 |
Download Energy Materials 2017 Book in PDF, ePub and Kindle
This collection highlights materials research and innovations for a wide breadth of energy systems and technologies. The volume includes papers organized into the following sections:Energy and Environmental Issues in Materials Manufacturing and ProcessingMaterials in Clean PowerMaterials for Coal-Based PowerMaterials for Energy Conversion with Emphasis on SOFCMaterials for Gas TurbinesMaterials for Nuclear EnergyMaterials for Oil and Gas
Author | : John N. Lalena |
Publisher | : John Wiley & Sons |
Total Pages | : 313 |
Release | : 2008-01-09 |
Genre | : Technology & Engineering |
ISBN | : 0470191562 |
Download Inorganic Materials Synthesis and Fabrication Book in PDF, ePub and Kindle
This up-to-date, single-source reference on the preparation of single-phase inorganic materials covers the most important methods and techniques in solid-state synthesis and materials fabrication. Presenting both fundamental background and advanced methodologies, it describes the principles of crystallography, thermodynamics, and kinetics required, addresses crystallographic and microstructural considerations, and describes various kinds of reactions. This is an excellent text for materials science and engineering, chemistry, and physics students, as well as a practical, hands-on reference for working professionals.
Author | : Chester Thomas Sims |
Publisher | : John Wiley & Sons |
Total Pages | : 644 |
Release | : 1972 |
Genre | : Technology & Engineering |
ISBN | : |
Download The Superalloys Book in PDF, ePub and Kindle