scholarly journals Comparison of High Temperature Corrosion Resistance in Gaseous Environment of Alloys based on Intermetallic Phase Matrix Fe40Al5CrZrb And Steel X12CrCoNi2120

2014 ◽  
Vol 59 (2) ◽  
pp. 447-450 ◽  
Author(s):  
J. Cebulski ◽  
A. Fornalczyk ◽  
D. Pasek

Abstract The paper presents results of the research which aim was to compare the corrosion resistance of alloys based on intermetallic phase after Fe40Al5CrTiB crystallization and after forming the steel corrosion resistant X12CrCoNi2120 species. The tests were performed for steel at temperature of 700°C Fe40Al5CrTiB and for alloy at 1100°C and 9% O2 0.2% HCl + SO2+ 0.08 N2 environment. In the research the changes of weight after corrosion tests, observations of the surface, specified chemical and phase composition of corrosion products were made. The obtained results of the study showed a very good corrosion resistance of Fe40Al5CrTiB alloys in high temperature and environments containing oxygen, sulfur and chlorine as compared to the corrosion resistance of the steel grade X12CrCoNi2120. Results of the research conducted in this scope are the basis for further research.

Author(s):  
W. Wood

This paper describes ‘Nucerite’, a new material of construction consisting of a ceramic-metal composite which has improved mechanical strength and abrasion resistance over glassed steel. A wide range of ceramics is available and these can be bonded to a range of base metals, thus giving a very wide choice of properties. An outline of the induced crystalline structure in the ceramic shows how Nucerite is suitable for high temperature use together with good corrosion resistance. The application of Nucerite in the chemical and related industries shows how its versatility can be used to solve high temperature, corrosion, and abrasion problems. Examples of items of equipment, together with the conditions under which they are being used, confirms that there is a big future for Nucerite as it is developed and its properties are improved even further.


Author(s):  
Peter F. Tortorelli ◽  
Claudette G. McKamey ◽  
Edgar Lara-Curzio ◽  
Roddie R. Judkins

Iron aluminides have shown good to excellent high-temperature corrosion resistance in sulfur-bearing environments and thus have potential for use as the material of construction for metallic filters used to clean fossil-fuel-derived gases prior to their introduction into gas turbine systems. Consequently, a background for consideration of such alloys for filter applications is given in terms of a brief summary of the physical metallurgy and relevant high-temperature corrosion behavior of iron aluminides. In addition, preliminary characterization results on iron-aluminide filter elements exposed in test beds that simulate environments associated with advanced coal-fired energy production are presented. Although good corrosion resistance was found, there were minor to moderate strength reductions that did not necessarily scale with time. Little degradation in ductility was observed.


2018 ◽  
Vol 1 (1) ◽  
pp. 7-12
Author(s):  
P. Akshay Prasanna ◽  
◽  
P. Subramani ◽  
V. Sreenivasulu ◽  
N. Arivazhagan ◽  
...  

The present study investigates the hot corrosion behaviour of high-velocity oxy-fuel sprayed alloy X22CrMoV12-1 with Cr3C2-25NiCr coating at 600oC. The study was carried out by air and molten salt environment for both coated and uncoated substrates for 50 cycles. Thermogravimetry analysis was carried out to evaluate the hot corrosion by calculating the mass changes in each cycle. The results show that coating provides the marginally good corrosion resistance than the uncoated alloy. The formation of Fe2O3 and MoO3 phases in the uncoated substrates in both air and molten salt environments reduces the corrosion resistance at the high-temperature environment. The formation of Ni2Oand spinel oxide NiCr2O4 provided good resistance to corrosion in the coated substrates in the air and molten salt environment.


Alloy Digest ◽  
1960 ◽  
Vol 9 (7) ◽  

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..


Alloy Digest ◽  
1971 ◽  
Vol 20 (9) ◽  

Abstract COPPER ALLOY No. 260 is a 70% copper-30% zinc alloy having high strength, excellent ductility, and good corrosion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as 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: Cu-241. Producer or source: Brass mills.


Alloy Digest ◽  
1969 ◽  
Vol 18 (2) ◽  

Abstract UNILOY 50Cr/50Nj is an improved corrosion-resistant, wrought alloy with outstanding resistance to a wide variety of corrosive media. It is recommended for oil refinery heaters, incinerator components, metallurgical heat treating furnace components and reactor vessels for treating pulping liquors. 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 and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Cr-2. Producer or source: Universal Cyclops Steel Corporation.


Alloy Digest ◽  
1970 ◽  
Vol 19 (9) ◽  

Abstract MONEL alloy 502, a modification of MONEL alloy K-500, provides improved machinability. It maintains high strength up to about 800 F and has good corrosion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-157. Producer or source: Huntington Alloy Products Division.


Alloy Digest ◽  
1968 ◽  
Vol 17 (9) ◽  

Abstract Brush Alloy 260-C is a beryllium nickel casting alloy having high strength, hardness and good corrosion resistance. It is recommended for fuel pump impellers, turbines, non-sparking tools, molds for plastics and glass. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, joining, and surface treatment. Filing Code: Ni-138. Producer or source: Brush Beryllium Company.


Alloy Digest ◽  
1959 ◽  
Vol 8 (11) ◽  

Abstract BIRMABRIGHT B.B.5 is a corrosion resistant, medium-strength magnesium-aluminum alloy in both the cast and wrought conditions. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as casting, forming, heat treating, machining, and joining. Filing Code: Al-85. Producer or source: Birmabright Ltd.


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