Control of Metal Alloy Oxidation with Electric Fields

Author(s):  
R. R. Dils ◽  
P. S. Follansbee

Electric fields have been applied across oxides growing on a high temperature alloy and control of the oxidation of the material has been demonstrated. At present, three-fold increases in the oxidation rate have been measured in accelerating fields and the oxidation process has been completely stopped in a retarding field.The experiments have been conducted with an iron-base alloy, Pe 25Cr 5A1 0.1Y, although, in principle, any alloy capable of forming an adherent aluminum oxide layer during oxidation can be used. A specimen is polished and oxidized to produce a thin, uniform insulating layer on one surface. Three platinum electrodes are sputtered on the oxide surface and the specimen is reoxidized.

Alloy Digest ◽  
2011 ◽  
Vol 60 (11) ◽  

Abstract Metglas Alloy 2605S3A is an iron-base alloy with high permeability. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming. Filing Code: Fe-157. Producer or source: Metglas Inc..


Alloy Digest ◽  
2002 ◽  
Vol 51 (1) ◽  

Abstract Colmonoy No. 1 is an abrasion-resistant alloy for high-impact applications such as dipper teeth, mill hammers, and catalyst valves. Colmonoy Special No. 1 is an abrasion-resistant iron-base alloy for use where impact is moderate such as ash plows, coal chutes, and dredge cutters. Both alloys can be ground. This datasheet provides information on composition, physical properties, and hardness. It also includes information on surface qualities as well as joining. Filing Code: SS-843. Producer or source: Wall Colmonoy Corporation.


Alloy Digest ◽  
1968 ◽  
Vol 17 (8) ◽  

Abstract CMN-155 is an austenitic iron-base alloy having high oxidation and heat resistance combined with good high temperature properties. It is recommended for jet engine and gas turbine components, high temperature fasteners, and rocket chambers. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SS-212. Producer or source: Cannon-Muskegon Corporation.


Alloy Digest ◽  
1970 ◽  
Vol 19 (7) ◽  

Abstract INCOLOY ALLOY 802 is a high-carbon iron-base alloy recommended for high-temperature applications requiring excellent corrosion resistance and good mechanical properties. It is furnished in the annealed condition. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness, creep, and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-240. Producer or source: Huntington Alloy Products Division, An INCO Company.


Alloy Digest ◽  
1959 ◽  
Vol 8 (1) ◽  

Abstract G-E ALLOY J-1300 is a precipitation hardening iron-base alloy with an excellent strength to weight ratio. It is recommended for applications in the 1350 F. range. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SS-83. Producer or source: General Electric Company.


Alloy Digest ◽  
1978 ◽  
Vol 27 (3) ◽  

Abstract TECH-TRONIC 32 stainless steel is essentially a low-nickel chromium-manganese austenitic iron-base alloy. In the annealed condition it provides about twice the yield strength of AISI Type 304 stainless steel and almost the same resistance to corrosion. It also offers improved wear and galling resistance over standard stainless steels. TECH-TRONIC 32 can be cold worked to high strength levels with retention of good ductility. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-348. Producer or source: Techalloy Company Inc..


Metals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 471
Author(s):  
Josef Odehnal ◽  
Pavel Ludvík ◽  
Tomáš Studecký ◽  
Pavel Michálek

The presented work is aimed at developing a mould geometry suitable for casting both low- and high-alloy steel grades into 500 kg experimental ingots. The high Height-to-Diameter (H/D)-ratio mould currently used in COMTES FHT Inc. served as a reference and for finite element method simulations (FEM) of the filling and solidification process. The optimized mould geometry, balancing the porosity and segregations, was determined using MAGMA software. Four different steel grades were defined for the simulation. Case studies were carried out for 34CrNiMo6 (W.Nr. 1.6582), DHQ8, CB2 and borated stainless steel grades ranging from low-alloy steel to high-alloy steel. Extended user-defined criteria and verified boundary conditions were used to predict the formation of A-segregations in cast steel. Both primary (PDAS) and secondary (SDAS) arm spacings were modelled as well. The optimized mould shape and the casting assembly were designed based on the simulation results.


ChemPhysChem ◽  
2020 ◽  
Vol 21 (15) ◽  
pp. 1737-1737
Author(s):  
Rinat Meir ◽  
Hui Chen ◽  
Wenzhen Lai ◽  
Sason Shaik

2017 ◽  
Vol 53 (79) ◽  
pp. 10942-10945 ◽  
Author(s):  
Somraj Guha ◽  
Imran Kazi ◽  
Pranamita Mukherjee ◽  
Govindasamy Sekar

Halogen-bonded iodonium ions have been employed as selective oxidants in a challenging domino oxidation process to form synthetically important α-hydroxy ketones from easily available benzylic alcohols.


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