Microstructure selection of Fe–Cr–Ni alloy during directional solidification

2010 ◽  
Vol 23 (2) ◽  
pp. 119-123 ◽  
Author(s):  
J. W. Fu ◽  
Y. S. Yang ◽  
J. J. Guo
Keyword(s):  
Directional Solidification ◽  
Ni Alloy ◽  
Selection Of

scholarly journals Study on the Phase Selection and Debye Temperature of Hyper-Peritectic Al-Ni Alloy under High Pressure

Metals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 84
Author(s):  
Xiaohong Wang ◽  
Zhipeng Chen ◽  
Duo Dong ◽  
Dongdong Zhu ◽  
Hongwei Wang ◽  
...  
Keyword(s):  
High Pressure ◽  
Ambient Pressure ◽  
Competitive Growth ◽  
Phase Selection ◽  
Debye Temperatures ◽  
Ni Alloy ◽  
Temperature Heat ◽  
Low Temperature Heat Capacity ◽  
New Phase ◽  
Selection Of

The phase selection of hyper-peritectic Al-47wt.%Ni alloy solidified under different pressures was investigated. The results show that Al3Ni2 and Al3Ni phases coexist at ambient pressure, while another new phase α-Al exists simultaneously when solidified at high pressure. Based on the competitive growth theory of dendrite, a kinetic stabilization of metastable peritectic phases with respect to stable ones is predicted for different solidification pressures. It demonstrates that Al3Ni2 phase nucleates and grows directly from the undercooled liquid. Meanwhile, the Debye temperatures of Al-47wt.%Ni alloy that fabricated at different pressures were also calculated using the low temperature heat capacity curve.

Selection of doublet cellular patterns in directional solidification through spatially periodic perturbations

1998 ◽  
Vol 58 (6) ◽  
pp. 7492-7506 ◽  
Author(s):  
W. Losert ◽  
D. A. Stillman ◽  
H. Z. Cummins ◽  
P. Kopczyński ◽  
W.-J. Rappel ◽  
...  
Keyword(s):  
Directional Solidification ◽  
Periodic Perturbations ◽  
Spatially Periodic ◽  
Selection Of

scholarly journals Coupled Cellular Automaton (CA) – Finite Element (FE) Modeling of Directional Solidification of Al-3.5 wt% Ni Alloy: A Comparison with X-ray Synchrotron Observations

2014 ◽  
Vol 54 (2) ◽  
pp. 392-400 ◽  
Author(s):  
Dong Rong Liu ◽  
Guillaume Reinhart ◽  
Nathalie Mangelinck‑Noel ◽  
Charles-André Gandin ◽  
Henri Nguyen-Thi ◽  
...  
Keyword(s):  
Finite Element ◽  
Cellular Automaton ◽  
Directional Solidification ◽  
Fe Modeling ◽  
X Ray ◽  
Ni Alloy

Effects of the Interface Curvature and Dendrite Orientation in Directional Solidification of Bulk Transparent Alloys

2006 ◽  
Vol 508 ◽  
pp. 337-342 ◽  
Author(s):  
Cedric Weiss ◽  
Nathalie Bergeon ◽  
Nathalie Mangelinck-Noël ◽  
Bernard Billia
Keyword(s):  
Directional Solidification ◽  
Optical Methods ◽  
Fundamental Physics ◽  
Materials Engineering ◽  
Interface Curvature ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Selection Of

The properties of structural materials are to a large extent determined by the solid microstructure so that the understanding of the fundamental physics of microstructure formation is critical in the field of materials engineering. A directional solidification facility dedicated to the characterization of solid-liquid interface morphology by means of optical methods has been developed by CNES in the frame of the DECLIC project. This device enables in situ and real time studies on bulk transparent materials. The aim of the project is to perform experiments in microgravity to eliminate the complex couplings between solidification and convection and to get reliable benchmark data to validate and calibrate theoretical modeling and numerical simulations. Presently, ground experiments are performed to finalize the design and the experimental procedures and to guarantee the accuracy of the measurements. These experiments also provide reference data for the study of solidification microstructure dynamics in the presence of buoyancy-driven natural convection. Recent progress is presented concerning the control of the interface shape (critical for pattern analysis), the selection of single crystal of defined orientation (critical for dendritic growth) and the analysis of the dendrite shape.

Variant Selection of Plate Martensite in Fe-28.5at.%Ni Alloy

2006 ◽  
Vol 512 ◽  
pp. 117-122 ◽  
Author(s):  
Hiromoto Kitahara ◽  
Masato Ueda ◽  
Nobuhiro Tsuji ◽  
Yoritoshi Minamino
Keyword(s):  
Shear Strain ◽  
Equivalent Strain ◽  
Crystallographic Analysis ◽  
Coarse Grained ◽  
Variant Selection ◽  
Plate Martensite ◽  
Ni Alloy ◽  
Back Scattering ◽  
Habit Planes ◽  
Selection Of

Variant selection rule of plate martensite in a coarse-grained Fe-28.5at.%Ni alloy was investigated. Crystallographic analysis of martensite plates was carried out by electron back scattering diffraction (EBSD) analysis in a scanning electron microscope with a field emission type gun (FE-SEM). Certain variant selections were recognized for martensite plates in the Fe-28.5at.%Ni alloy. Equivalent strain, which was calculated from the shape strain of each variant, was used to evaluate the accommodation of the shear strain induced by martensite transformation. Variant selection was ruled not only by the shear strain accommodation but also by the ngle between habit planes of adjacent martensite plates.

Variant Selection of Plate Martensite in Fe-28.5at.%Ni Alloy

2006 ◽  
pp. 117-122
Author(s):  
Hiromoto Kitahara ◽  
Masato Ueda ◽  
Nobuhiro Tsuji ◽  
Yoritoshi Minamino
Keyword(s):  
Variant Selection ◽  
Plate Martensite ◽  
Ni Alloy ◽  
Selection Of
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