Anab initiostudy of S-substituted iron–nickel–silicon alloy at the Earth's inner core pressure

2008 ◽  
Vol 28 (4) ◽  
pp. 437-441 ◽  
Author(s):  
M. Mattesini ◽  
E. Buforn ◽  
A. Udías ◽  
L. Vitos ◽  
R. Ahuja
Keyword(s):  
Inner Core ◽  
Silicon Alloy ◽  
Iron Nickel ◽  
Earth’S Inner Core ◽  
Nickel Silicon

scholarly journals High‐Pressure Deformation of Iron–Nickel–Silicon Alloys and Implications for Earth’s Inner Core

2021 ◽  
Vol 126 (3) ◽  
Author(s):  
Matthew C. Brennan ◽  
Rebecca A. Fischer ◽  
Samantha Couper ◽  
Lowell Miyagi ◽  
Daniele Antonangeli ◽  
...  
Keyword(s):  
High Pressure ◽  
Inner Core ◽  
Silicon Alloys ◽  
Iron Nickel ◽  
Earth’S Inner Core ◽  
Nickel Silicon

scholarly journals Two-phase mixture of iron–nickel–silicon alloys in the Earth’s inner core

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Daijo Ikuta ◽  
Eiji Ohtani ◽  
Naohisa Hirao
Keyword(s):  
Inner Core ◽  
Earth Model ◽  
Two Phase ◽  
Silicon Alloys ◽  
Hexagonal Close Packed ◽  
Iron Nickel ◽  
Earth’S Inner Core ◽  
Phase Mixture ◽  
Core Conditions ◽  
Nickel Silicon

AbstractThe Earth’s inner core comprises iron-nickel alloys with light elements. However, there is no clarity on the phase properties of these alloys. Here we show phase relations and equations of state of iron–nickel and iron–nickel–silicon alloys up to 186 gigapascals and 3090 kelvin. An ordered derivative of the body-centred cubic structure (B2) phase was observed in these alloys. Results show that nickel and silicon influence the stability field associated with the two-phase mixture of B2 and hexagonal close-packed phases under core conditions. The two-phase mixture can give the inner core density of the preliminary reference Earth model. The compressional wave velocity of the two-phase mixture under inner core conditions is consistent with that of the preliminary reference Earth model. Therefore, a mixture of B2 and hexagonal close-packed phases may exist in the inner core and accounts for the seismological properties of the inner core such as density and velocity deficits.

scholarly journals High-Pressure Deformation of Iron–Nickel–Silicon Alloys and Implications for Earth’s Inner Core

2020 ◽  
Author(s):  
Matthew Brennan ◽  
Rebecca Fischer ◽  
Samantha Couper ◽  
Lowell Miyagi ◽  
Daniele Antonangeli ◽  
...  
Keyword(s):  
High Pressure ◽  
Inner Core ◽  
Silicon Alloys ◽  
Iron Nickel ◽  
Earth’S Inner Core ◽  
Nickel Silicon

scholarly journals The effect of nickel on the strength of iron nickel alloys: Implications for the Earth’s inner core

2018 ◽  
Vol 283 ◽  
pp. 43-47 ◽  
Author(s):  
Mary M. Reagan ◽  
Arianna E. Gleason ◽  
Jin Liu ◽  
Michael J. Krawczynski ◽  
James A. Van Orman ◽  
...  
Keyword(s):  
Nickel Alloys ◽  
Inner Core ◽  
Iron Nickel ◽  
Earth’S Inner Core ◽  
Iron Nickel Alloys

CUNISIL-837

Alloy Digest ◽  
1961 ◽  
Vol 10 (7) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
Heat Treating ◽  
Silicon Alloy ◽  
Copper Nickel ◽  
Nickel Silicon

Abstract Cunisil-837 is a copper-nickel-silicon alloy having high strength and corrosion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: Cu-104. Producer or source: Anaconda American Brass Company.

SILNIC BRONZE

Alloy Digest ◽  
1960 ◽  
Vol 9 (7) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
Heat Treating ◽  
Silicon Alloy ◽  
Good Corrosion Resistance ◽  
Temperature Performance ◽  
Nickel Silicon

Abstract SILNIC BRONZE is a copper-nickel-silicon alloy having high strength, high conductivity and good corrosion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-90. Producer or source: Chase Brass & Copper Company Inc..

COPPER ALLOY No. 647

Alloy Digest ◽  
1971 ◽  
Vol 20 (4) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Copper Alloy ◽  
Heat Treating ◽  
Silicon Alloy ◽  
Copper Nickel ◽  
Alloy Steels ◽  
Nickel Silicon

Abstract COPPER ALLOY No. 647 is an age-hardenable copper-nickel-silicon alloy which can be age hardened to strength levels equivalent to those of many alloy steels. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-230. Producer or source: Copper and copper alloy mills.

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