Results 1 to 10 of about 18,009 (224)

The temperature dependent lattice misfit of rhenium and ruthenium containing nickel-base superalloys – Experiment and modelling

open access: yesMaterials & Design, 2021
The lattice misfit between γ and γ' phase is a key parameter in Ni-base superalloys. Resulting internal coherency stresses govern the microstructure, its evolution and mechanical properties. Here, the influence of important alloying elements Re and Ru on
S. Neumeier, F. Pyczak, M. Göken
doaj   +3 more sources

Microstructural stability and lattice misfit characterization of nimonic 263 [PDF]

open access: yesVolume 6: Materials and Fabrication, Parts A and B, 2012
Nimonic 263 has been selected as a candidate header/piping material of advanced ultra-supercritical (A-USC) boilers for the next generation of fossil fuel power plant.
Barnard, Pete   +3 more
core   +2 more sources

Effect of Lattice Misfit on the Stability of the Misfit Layer Compound (SnS)1+xNbS2

open access: yesCrystals
The prototype misfit layer compound (SnS)1.17NbS2 consists alternatingly of a metallic triatomic NbS2 layer, in which Nb atoms are sandwiched by S atoms, and an insulating SnS double layer featuring a NaCl-type structure.
Changming Fang
doaj   +4 more sources

Lightweight Ultra‐Strength in AlFeNiTiV Complex Concentrated Alloys via Cu Microalloying‐Driven Lattice Coherency Tuning [PDF]

open access: yesAdvanced Science
Next‐generation high‐performance structural materials are required for lightweight design strategies and advanced energy applications. In this work, a custom AlFeNiTiV complex concentrated alloy (CCA) with a combination of ultra‐high compressive strength,
Hongmei Chen   +10 more
doaj   +2 more sources

An Overview on Atomistic Mechanisms of Heterogeneous Nucleation

open access: yesMetals, 2022
Our current understanding of heterogeneous nucleation has been dominated by the classical nucleation theory (CNT) with little progress of significance being made in past 100 years.
Zhongyun Fan, Hua Men
doaj   +1 more source

Experimental Study of As-Cast and Heat-Treated Single-Crystal Ni-Based Superalloy Interface Using TEM

open access: yesNanomaterials, 2023
The interface plays an important role in determining strength and toughness in multiphase systems and the accurate measurement of the interface structure in single crystal (SX) Ni-based superalloy is also essential.
Runjun He   +6 more
doaj   +1 more source

A New Atomistic Mechanism for Heterogeneous Nucleation in the Systems with Negative Lattice Misfit: Creating a 2D Template for Crystal Growth

open access: yesMetals, 2021
Heterogeneous nucleation is a widespread phenomenon in both nature and technology. However, our current understanding is largely confined to the classical nucleation theory (CNT) postulated over a century ago, in which heterogeneous nucleation occurs ...
Zhongyun Fan   +3 more
doaj   +1 more source

Role of Hf and Re on the lattice misfit between γ/γ′of Co-Ti-V superalloys

open access: yesJournal of Aeronautical Materials, 2021
The relationship between γ′ phase morphology and γ/γ′ lattice misfit degree in Co-Ti-V superalloy with different Hf and Re contents was studied by observation of microstructure and X-ray diffraction analysis.
ZHOU Pengjie   +3 more
doaj   +1 more source

Heterogeneous Nucleation Mechanisms in Systems with Large Lattice Misfit Demonstrated by the Pb(l)/Cu(s) System

open access: yesMetals, 2022
Our current understanding of heterogeneous nucleation has been largely confined to the classical nucleation theory (CNT) that was postulated over 100 years ago based on a thermodynamic approach.
Hua Men, Zhongyun Fan
doaj   +1 more source

Competing roughening mechanisms in strained heteroepitaxy: a fast kinetic Monte Carlo study [PDF]

open access: yes, 2002
We study the morphological evolution of strained heteroepitaxial films using kinetic Monte Carlo simulations in two dimensions. A novel Green's function approach, analogous to boundary integral methods, is used to calculate elastic energies efficiently ...
Lam, Chi-Hang   +2 more
core   +2 more sources

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