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Constitutive behaviour and microstructural evolution in thermally deformed Al-Zn-Mg alloy. [PDF]
Sci RepHarikrishna K +5 more
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Kinetics of hot-pressing: The exponential form
Journal of Materials Science Letters, 1986where 0 is the relative density; t is the time (sec); P is the applied pressure (dyncm-2); q is the viscosity (poise); ~ is the strain rate (see-l); A, B are the constants; DE is the lattice-diffusion coefficient (cm 2 s e e l ) ; D b is the grain-boundary diffusion coefficient (cm z see -1); Q is the volume of vacancy (cm3); a~ is the effective stress
Lin, W. Y., Hon, M. H., Yang, Seng-Jenn
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Near-net-shape forming of alumina powder under hot pressing and hot isostatic pressing
International Journal of Mechanical Sciences, 1997Densification and deformation of alumina powder under hot pressing and hot isostatic pressing were investigated. Finite element calculations were performed by implementing constitutive equations for grain growth, power law creep and diffusional creep in the user defined subroutine CREEP of ABAQUS.
Kim, KT, Kwon, YS, Kim, HG
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Microstructural analysis of hot press formed 22MnB5 steel
AIP Conference Proceedings, 2017This paper presents a microstructural study on hot press formed 22MnB5 steel for enhanced mechanical properties. Hot press forming process consists of simultaneous forming and quenching of heated blank. The 22MnB5 steel was processed at three different parameter settings: quenching time, water temperature and water flow rate. 22MnB5 was processed using
Nuraini Aziz +2 more
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Corrosion behavior of Al-Si-Mg coated hot-press-forming steel
Corrosion Science, 2021Abstract This study introduces enhanced corrosion performance of the Al-Si-Mg coated 22MnB5 boron steel. Structural changes of the coating after hot-dip-aluminizing and hot-press-forming processes with the presence of Mg included compacter surface with Mg segregation and thicker crack-free layer.
Changkyu Kim +4 more
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Aluminide Coating Formation on Hot Press Forming Steels
Materials Science Forum, 2010In the present work, the formation of an aluminide coating prior to Hot Press Forming (HPF) was investigated. It was found that the formation of Fe3Al phases could suppress coating degradation during the HPF process. This new method was studied as a way to simultaneously improve the coating ductility and achieve a good hot corrosion resistance. In this
Dong Wei Fan +3 more
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