Effect of dispersed oxides of rare earths and other reactive elements on the high temperature oxidation resistance of Fe-20Cr alloy

1981 ◽  
Vol 12 (3) ◽  
pp. 435-442 ◽  
Author(s):  
Hiroshi Nagai ◽  
Yoshiki Takebayashi ◽  
Hiroyasu Mitani
Keyword(s):  
High Temperature ◽  
Oxidation Resistance ◽  
Rare Earths ◽  
High Temperature Oxidation ◽  
Reactive Elements ◽  
Temperature Oxidation

scholarly journals High Temperature Oxidation Resistance on Heat-Resistant Alloys with Small Additions of Reactive Elements.

1993 ◽  
Vol 5 (4) ◽  
pp. 110
Author(s):  
Tadaaki Amano ◽  
Kaoru Michiyama ◽  
Yasuhiko Nakajima ◽  
Nobutaka Suzuki ◽  
Hideyoshi Matsumoto ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxidation Resistance ◽  
High Temperature Oxidation ◽  
Reactive Elements ◽  
Temperature Oxidation ◽  
Heat Resistant

Limitations on the Use of Surface Doping for Improving High-Temperature Oxidation Resistance

MRS Bulletin ◽  
1994 ◽  
Vol 19 (10) ◽  
pp. 26-30 ◽  
Author(s):  
B.A. Pint
Keyword(s):  
High Temperature ◽  
Oxidation Resistance ◽  
High Temperature Oxidation ◽  
Reactive Elements ◽  
Scale Growth ◽  
Temperature Oxidation ◽  
Scale Adhesion ◽  
Cr Concentration ◽  
Slow Growing ◽  
Standard List

For more than 50 years, scientists have studied the “magic dust” of high-temperature oxidation—certain oxygen active or “reactive” elements which, when added to alloys in small quantities, effect profound improvements in their oxidation resistance. In general, high-temperature oxidation resistance is achieved by the oxidation of one or more alloy components to form a dense, stable, slow-growing, external oxide layer, or ’scale” such as α-Cr2O3, α-Al2O3, or SiO2. When added properly, reactive elements have a beneficial effect on the formation and growth of both α-Cr2O3 and α-Al2O3 scales. A standard list of reactive element (RE) effects would include: (1) an improvement in scale adhesion or resistance to spallation, (2) a change in the scale growth mechanism, (3) a reduction in the oxidation rate, related to the change in mechanism, (4) a modification in the scale microstructure, and (5) in the case of alloys that form Cr2O3 scales, an improvement in selective oxidation, meaning that a lower Cr concentration in the alloy is required to form and maintain an external Cr2O3 scale.

AK STEEL 441

Alloy Digest ◽  
2006 ◽  
Vol 55 (6) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Tensile Properties ◽  
Oxidation Resistance ◽  
Ferritic Stainless Steel ◽  
High Temperature Oxidation ◽  
High Temperature Strength ◽  
Temperature Oxidation ◽  
Temperature Performance

Abstract AK Steel 441 has good high-temperature strength, an equiaxed microstructure, and good high-temperature oxidation resistance. The alloy is a niobium-bearing ferritic stainless steel. This datasheet provides information on composition, hardness, and tensile properties as well as deformation. It also includes information on high temperature performance and corrosion resistance as well as forming and joining. Filing Code: SS-965. Producer or source: AK Steel.

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