Results 1 to 10 of about 474,991 (233)

The Effect of Temperature and Mo Content on the Lattice Misfit of Model Ni-Based Superalloys [PDF]

open access: yesMetals, 2019
The lattice parameters and misfit of the γ and γ′ phases in a series of model quaternary Ni-based superalloys with and without Mo additions have been determined using neutron diffraction between room temperature and 700 °C.
Amy J. Goodfellow   +5 more
doaj   +9 more sources

The Effect of Lattice Misfits on the Precipitation at Dislocations: Phase-Field Crystal Simulation

open access: yesMaterials, 2023
An atomic-scale approach was employed to simulate the formation of precipitates with different lattice misfits in the early stages of the aging of supersaturated aluminum alloys. The simulation results revealed that the increase in lattice misfits could significantly promote the nucleation rate of precipitates, which results in a larger number and ...
Hong Mao, Xiong Shuai
exaly   +4 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

The effect of lattice misfit on the mechanical properties of L12-strengthened medium-entropy alloys with low stacking fault energy

open access: yesJournal of Materials Research and Technology
L12 precipitates reinforced face-centered cubic (FCC) high entropy alloys have attracted broad attention because of their good strengthening and ductility behaviors.
Bingkai Wang   +3 more
doaj   +4 more sources

Lattice Misfit Design and Characterisation in BCC Superalloys [PDF]

open access: yesScripta Materialia
BCC superalloys are a promising class of high-temperature materials with a wide range of lattice misfit values, ranging from near-zero to ∼8 %. Analogous to nickel superalloys, lattice misfit combined with elastic anisotropy dictates precipitate morphology (spherical, cuboidal, plate/needle-like), coarsening kinetics, strengthening mechanisms, and ...
Xianfeng Ma   +2 more
exaly   +4 more sources

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

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

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