Results 51 to 60 of about 1,316 (183)

On the Effect of Creep on Local Lattice Orientation in Single‐Crystal Ni‐Based Superalloy Microstructures

open access: yesAdvanced Engineering Materials, EarlyView.
During creep of a single‐crystal Ni‐based superalloy, the overall crystal orientation is observed to remain constant while the microstructure evolves. Despite the lack of macroscopic rotation, small (<1°) rotations are observed on the submicron size scale and are accommodated by counteracting rotations over the scale of several micrometers.
E. J. Payton   +3 more
wiley   +1 more source

Uncertainty quantification and composition optimization for alloy additive manufacturing through a CALPHAD-based ICME framework

open access: yesnpj Computational Materials, 2020
During powder production, the pre-alloyed powder composition often deviates from the target composition leading to undesirable properties of additive manufacturing (AM) components.
Xin Wang, Wei Xiong
doaj   +1 more source

BSTS synthesis guided by CALPHAD approach for phase equilibria and process optimization

open access: yesScientific Reports, 2023
This work presents a new method for processing single-crystal semiconductors designed by a computational method to lower the process temperature.
Husain F. Alnaser, Taylor D. Sparks
doaj   +1 more source

Progress of CALPHAD

open access: yesMaterials Transactions, JIM, 1992
CALPHAD, Computer Calculation of Phase Diagrams, has made significantly accomplishments since 1970's. In this paper, some examples of phases diagrams obtained by the CALPHAD method are presented. Especially, the microstructure design based on CALPHAD for magnetic materials is reviewed.
openaire   +2 more sources

The Influence of Field‐Assisted Sintering Technology (FAST) Temperature and Cooling Rate on the Microstructural Evolution in Gamma‐Titanium Aluminide Alloy GE4822

open access: yesAdvanced Engineering Materials, EarlyView.
Controlling the Field Assisted Sintering Technology (FAST) parameters, dwell temperature and cooling rate, significantly influences the microstructural evolution in titanium aluminide GE4822. Significant γ‐lamellar colonies develop only upon cooling through the α‐transus.
Jack Krohn, James Pepper, Martin Jackson
wiley   +1 more source

Thermodynamics of Plutonium Monocarbide from Anharmonic and Relativistic Theory

open access: yesApplied Sciences, 2020
Thermodynamics of plutonium monocarbide is studied from first-principles theory that includes relativistic electronic structure and anharmonic lattice vibrations. Density-functional theory (DFT) is expanded to include orbital-orbital coupling in addition
Per Söderlind   +4 more
doaj   +1 more source

Phase Diagrams Enable Solid‐State Battery Design

open access: yesAdvanced Materials Interfaces, EarlyView.
Batteries are non‐equilibrium devices with inherent thermodynamic driving forces to react at interfaces, regardless of kinetics or operating conditions. Chemical potential mismatches across interfaces are dissipated via interfacial reactions. In this work, it is illustrated how phase diagrams and chemical potential maps predict degradation pathways but
Nathaniel L. Skeele, Matthias T. Agne
wiley   +1 more source

An Integrated NLP‐ML Framework for Property Prediction and Design of Steels

open access: yesAdvanced Science, EarlyView.
This study presents a data‐driven framework that uses language‐processing techniques to interpret steel processing descriptions and machine‐learning models to predict mechanical properties. By organising complex process histories into meaningful groups and enabling rapid property forecasts, the work supports faster, more informed steel design through ...
Kiran Devraju   +5 more
wiley   +1 more source

Thermodynamic calculation of phase diagrams for Al-C-X(X=Mo,Nb,Ta,V)

open access: yesCailiao gongcheng
The Al-C-X(X=Mo,Nb,Ta,V) systems are studied by CALPHAD (calculation of phase diagrams) coupled with first-principles calculations. Two ternary phases,Ta5Al3C and Ta2AlC are identified in the Al-C-Ta system.
SHI Chuang   +6 more
doaj   +1 more source

Experimental and thermodynamic description of ternary Bi-Cu-Ga system [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2017
Phase diagram of the Bi-Cu-Ga ternary system has been investigated experimentally with 27 alloys and analytically by using a Calphad method. Thirteen annealed alloys at 200°C were investigated by using scanning electron microscopy (SEM) with energy ...
Minić D.   +8 more
doaj   +1 more source

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