scholarly journals Multiscale investigation of the crystallization mechanisms and solute redistribution during annealing of a Fe64B24Y4Nb6Al0.4 metallic glass

2021 ◽  
pp. 161264
Author(s):  
M.-N. Avettand-Fènoël ◽  
X. Sauvage ◽  
M. Marinova ◽  
A. Addad
Author(s):  
P. R. Okamoto ◽  
N.Q. Lam ◽  
R. L. Lyles

During irradiation of thin foils in a high voltage electron microscope (HVEM) defect gradients will be set up between the foil surfaces and interior. In alloys defect gradients provide additional driving forces for solute diffusion since any preferential binding and/or exchange between solute atoms and mobile defects will couple a net flux of solute atoms to the defect fluxes. Thus, during irradiation large nonequilibrium compositional gradients can be produced near the foil surfaces in initially homogeneous alloys. A system of coupled reaction-rate and diffusion equations describing the build up of mobile defects and solute redistribution in thin foils and in a semi-infinite medium under charged-particle irradiation has been formulated. Spatially uniform and nonuniform damage production rates have been used to model solute segregation under electron and ion irradiation conditions.An example calculation showing the time evolution of the solute concentration in a 2000 Å thick foil during electron irradiation is shown in Fig. 1.


1985 ◽  
Vol 46 (2) ◽  
pp. 235-241 ◽  
Author(s):  
F. Lançon ◽  
L. Billard ◽  
J. Laugier ◽  
A. Chamberod

Alloy Digest ◽  
1976 ◽  
Vol 25 (11) ◽  

Abstract METGLAS Alloy 2826 (Fe40Ni40P14B6) is a ferromagnetic, high permeability, nickel-iron metallic glass which, when appropriately annealed, yields a material similar to the higher nickel containing permalloys in magnetic properties. Alloy 2826 is a single phase, opaque metallic material with a glass-like structure obtained by a very rapid quench from the liquid state. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on forming and heat treating. Filing Code: Ni-235. Producer or source: Allied Chemical Corporation.


Alloy Digest ◽  
1981 ◽  
Vol 30 (12) ◽  

Abstract METGLAS MBF-30A is a brazing foil in ductile, flexible metallic-glass form (a similar grade, MBF-30, is identical except that it has larger dimensional tolerances). This foil provides an alloy with high strength at both elevated and room temperatures. It can be used to join highly stressed stainless steel and heat-resisting alloy components. The excellent flow characteristics of this alloy recommend it for assemblies with good fit-up and tight-tolerance joints. It works well on thin-foil, honeycomb designs and on fairly heavy components. This datasheet provides information on composition, physical properties, and microstructure. It also includes information on heat treating. Filing Code: Ni-273. Producer or source: Allied Corporation.


Alloy Digest ◽  
1981 ◽  
Vol 30 (11) ◽  

Abstract METGLAS MBF-10A is a brazing foil in ductile, flexible metallic-glass form (a similar grade, MBF-10, is identical except that it has larger dimensional tolerances). This foil provides an alloy with high strength at both elevated and room temperatures. It can be used to join highly stressed stainless steels and heat-resisting alloy components. Major application is in fabricating high-temperature jet-engine parts. This datasheet provides information on composition, physical properties, microstructure, tensile properties. It also includes information on heat treating and joining. Filing Code: Ni-272. Producer or source: Allied Corporation.


2006 ◽  
Author(s):  
William P. Walters ◽  
Laszlo J. Kecskes ◽  
Justin E. Pritchett

2019 ◽  
Author(s):  
F.X. Bai ◽  
S.J. Zheng ◽  
Y.X. Wang ◽  
J. Pan ◽  
J.H. Yao ◽  
...  

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