Predicting the Microstructure of a Valve Head during the Hot Forging of Steel 21-4N
Metals, 2018 Valve microstructure is important during hot forging. Austenitic 21-4N steel is often used in exhaust valves. In this study, the microstructure evolution of the forging valve process was predicted using the internal state variables (i.e., average grain ...
Hongchao Ji +5 more
doaj +1 more source
Capturing Local Material Heterogeneities in Numerical Modelling of Microstructure Evolution
Journal of Machine Engineering, 2021 The work focuses on developing the complex digital shadow of the metallic material microstructure that can predict its evolution during metal forming operations.
Lukasz Madej +5 more
doaj +1 more source
Influence of choked angle of bearing channel on profile grain structure during multi-hole extrusion of aluminum alloy [PDF]
, 2018 Direct extrusion of aluminum alloy EN AW-6060 was carried out applying a four-hole die with pair-wise parallel and choked long channels. Due to the dissimilar friction inside parallel and choked channels profiles with different length were extruded ...
Müller, Sören, Sanabria, Vidal
core +1 more source
Microstructure evolution during severe plastic deformation [PDF]
Philosophical Magazine, 2011 Radiotracer diffusion studies of severely deformed, ultra-fine grained materials have revealed the presence of ultra-fast transport paths, which include "non-equilibrium" grain boundaries and free volume. Under some experimental conditions, percolating porosity is produced even in pure copper [Ribbe et al., Phys. Rev. Lett. 2009]. Micro-cracks may form
Divinski, Sergiy +2 more
openaire +1 more source
Solidification behavior and microstructural evolution of near-eutectic Zn-Al alloys under intensive shear [PDF]
, 2008 Copyright @ 2009 ASM International. This paper was published in Metallurgical and Materials Transactions A, 40(1), 185 - 195 and is made available as an electronic reprint with the permission of ASM International.
Fan, Z, Ji, S
core +2 more sources
3D non-isothermal phase-field simulation of microstructure evolution during selective laser sintering [PDF]
npj Computational Materials, 2019 During selective laser sintering (SLS), the microstructure evolution and local temperature variation interact mutually. Application of conventional isothermal sintering model is thereby insufficient to describe SLS.
Yangyiwei Yang +4 more
semanticscholar +1 more source
Sensors, 2021 Stress affects the microstructure of the material to influence the durability and service life of the components. However, the previous work of stress measurement lacks quantification of the different variations in time and spatial features of ...
Jia Liu +5 more
doaj +1 more source
Modelling the Interfacial Flow of Two Immiscible Liquids in Mixing Processes [PDF]
, 2005 This paper presents an interface tracking method for modelling the flow of immiscible metallic liquids in mixing processes. The methodology can provide an insight into mixing processes for studying the fundamental morphology development mechanisms for ...
Agassant +53 more
core +1 more source
Materials & Design, 2020 Surface integrity is the permanent pursuit of industries for decades, and microstructure is a key factor controlling physical and mechanical properties of machined surfaces.
Hongguang Liu +4 more
doaj +1 more source
Microstructure Evolution in a Solid Oxide Fuel Cell Stack Quantified with Interfacial Free Energy
Energies, 2021 Degradation of electrode microstructure is one of the key factors affecting long term performance of Solid Oxide Fuel Cell systems. Evolution of a multiphase system can be described quantitatively by the change in its interfacial energy.
Tomasz A. Prokop +2 more
doaj +1 more source