[HTML][HTML] Fundamentals and processes of fluid pressure forming technology for complex thin-walled components

S Yuan - Engineering, 2021 - Elsevier
A new generation of fluid pressure forming technology has been developed for the three
typical structures of tubes, sheets, and shells, and hard-to-deform material components that …

On the prediction of the yield stress of unimodal and multimodal γ′ Nickel-base superalloys

EI Galindo-Nava, LD Connor, CMF Rae - Acta Materialia, 2015 - Elsevier
A new model for the yield stress in superalloys accounting for unimodal and multimodal γ′
size distributions is presented. A critique of the classic models on γ′ shearing is presented …

[HTML][HTML] Environmentally-assisted grain boundary attack as a mechanism of embrittlement in a nickel-based superalloy

AAN Németh, DJ Crudden, DEJ Armstrong, DM Collins… - Acta Materialia, 2017 - Elsevier
The loss of ductility in the high strength polycrystalline superalloy 720Li is studied in air
between room temperature and 1000° C. Tensile ductility is influenced profoundly by the …

A modelling approach to yield strength optimisation in a nickel-base superalloy

DM Collins, HJ Stone - International Journal of Plasticity, 2014 - Elsevier
A computational methodology combining models of precipitation and dispersion
strengthening with grain growth and grain boundary hardening has been produced to …

Correlation between secondary γ′ and high-temperature tensile behavior of a powder metallurgy nickel-based superalloy EP962NP

B Sun, T Zhang, L Song, L Zhang - Materials Science and Engineering: A, 2023 - Elsevier
A powder metallurgy nickel-based superalloy EP962NP was subjected to solid solution
treated and cooled in four media (water, oil, air and furnace) followed by aging treatment to …

Dynamic strain ageing in Ni-base superalloy 720Li

K Gopinath, AK Gogia, SV Kamat, U Ramamurty - Acta Materialia, 2009 - Elsevier
An experimental investigation into the dynamic strain ageing (DSA) of a wrought Ni-base
superalloy 720Li was conducted. Characteristics of jerky flow have been studied at …

Grain interactions under thermo-mechanical loads investigated with coupled crystal plasticity simulations and high-energy X-ray diffraction microscopy

BT Mackey, R Bandyopadhyay, SE Gustafson… - Acta Materialia, 2023 - Elsevier
Nickel (Ni)-based superalloys are used for safety-critical components in the aerospace
industry because of their high strength at elevated temperatures. These materials are …

On the plastic deformation of a CoCrFeNiW-C alloy at elevated temperatures: Part I. Serrated plastic flow and its latent dynamics

S Wei, DP Moriarty, M Xu, JM LeBeau, CC Tasan - Acta Materialia, 2023 - Elsevier
Multi-component Co-alloys are a class of promising metallic materials for high-temperature
applications. The present work primarily focuses on the plastic deformation mechanisms of a …

Molecular dynamics study of fatigue mechanical properties and microstructural evolution of Ni-based single crystal superalloys under cyclic loading

B Chen, WP Wu, MX Chen, YF Guo - Computational Materials Science, 2020 - Elsevier
The fatigue performance and deformation mechanism of Ni-based single crystal superalloys
under cyclic tension–compression loading are studied by molecular dynamics simulations …

[HTML][HTML] Recent advances in creep modelling of the nickel base superalloy, alloy 720Li

W Harrison, M Whittaker, S Williams - Materials, 2013 - mdpi.com
Recent work in the creep field has indicated that the traditional methodologies involving
power law equations are not sufficient to describe wide ranging creep behaviour. More …