scholarly journals Characterization of Engineered Nickel-Base Alloy Surface Layers Produced by Additive Friction Stir Processing

2013 ◽  
Vol 2 (1) ◽  
pp. 1-12 ◽  
Author(s):  
J. Rodelas ◽  
J. Lippold
Keyword(s):  
Friction Stir Processing ◽  
Base Alloy ◽  
Alloy Surface ◽  
Nickel Base Alloy ◽  
Surface Layers ◽  
Friction Stir ◽  
Nickel Base

An investigation into dissolution behavior of pre-oxidized Ni-6Al-10Cu-11Fe-15Cr nickel base alloy in molten cryolite

2015 ◽  
Vol 62 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Reza Tamasgavabari ◽  
Kurosh Jafarzadeh ◽  
Masumeh Madanipoor ◽  
Hassan Badri
Keyword(s):  
Corrosion Behaviour ◽  
Base Alloy ◽  
Dissolution Behavior ◽  
Nickel Base Alloy ◽  
Surface Layers ◽  
Content Type ◽  
Inert Anodes ◽  
Major Oxide ◽  
Nickel Base ◽  
Molten Cryolite

Purpose – The purpose of this paper was the investigation of corrosion behaviour of Ni-6Al-10Cu-11Fe-15Cr alloy, as a candidate material for inert anodes in aluminium electrolysis industries. Design/methodology/approach – The samples were prepared by casting, and then were oxidized at 1,000°C for 30, 70 and 100 hours, respectively. To determine corrosion resistant of the samples, they were exposed to molten cryolite at 930°C for 70 hours. Then the surface layers were studied. Findings – Results showed that by extension of corrosion time, thickness of oxide layers increases. In addition, it was found that Al2O3 and Cr2O3 are the major oxide compounds that appear on the surface of the sample. Originality/value – In this paper, the Ni-6Al-10Cu-11Fe-15Cr nickel base alloy has been selected to study its corrosion behaviour in molten cryolite as a candidate for inert anodes. It was found out that by addition Al and Cr into the alloy composition, due to formation of Al2O3 and Cr2O3 following oxidation, the substrate was protected from corrosion attacks.

Structural Characterization of Nickel-Base Alloy C-276 Irradiated with Ar Ions

2012 ◽  
Vol 14 (6) ◽  
pp. 548-552 ◽  
Author(s):  
Shuoxue Jin ◽  
Liping Guo ◽  
Zheng Yang ◽  
Zhongpo Zhou ◽  
Dejun Fu ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Base Alloy ◽  
Nickel Base Alloy ◽  
Nickel Base

The Nature of Delta Phase Precipitation in Inconel 718

1982 ◽  
Vol 40 ◽  
pp. 724-725
Author(s):  
L. S. Lin ◽  
C. C. Law
Keyword(s):  
Inconel 718 ◽  
Base Alloy ◽  
High Strength ◽  
Physical Metallurgy ◽  
Nickel Base Alloy ◽  
Phase Precipitation ◽  
Weight Percentage ◽  
Delta Phase ◽  
The Subject ◽  
Nickel Base

Inconel 718, a precipitation hardenable nickel-base alloy, is a versatile high strength, weldable wrought alloy that is used in the gas turbine industry for components operated at temperatures up to about 1300°F. The nominal chemical composition is 0.6A1-0.9Ti-19.OCr-18.0Fe-3Mo-5.2(Cb + Ta)- 0.1C with the balance Ni (in weight percentage). The physical metallurgy of IN 718 has been the subject of a number of investigations and it is now established that hardening is due, primarily, to the formation of metastable, disc-shaped γ" an ordered body-centered tetragonal structure (DO2 2 type superlattice).

ALTEMP HX

Alloy Digest ◽  
1993 ◽  
Vol 42 (10) ◽  
Keyword(s):  
Heat Treatment ◽  
Solid Solution ◽  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Base Alloy ◽  
Heat Treating ◽  
Nickel Base Alloy ◽  
Temperature Performance ◽  
Nickel Base

Abstract ALTEMP HX is an austenitic nickel-base alloy designed for outstanding oxidation and strength at high temperatures. The alloy is solid-solution strengthened. Applications include uses in the aerospace, heat treatment and petrochemical markets. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ni-442. Producer or source: Allegheny Ludlum Corporation.

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