scholarly journals Evaluation of High Temperature Corrosion Resistance of Al Plasma Spray Coatings in Molten Sulfates at 1073 K by Electrochemical Measurements

1996 ◽  
Vol 37 (5) ◽  
pp. 991-997 ◽  
Author(s):  
Chengxiang Wu ◽  
Masaru Okuyama
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Plasma Spray ◽  
High Temperature Corrosion ◽  
Electrochemical Measurements ◽  
Spray Coatings ◽  
Plasma Spray Coatings

Application of high-temperature ceramic plasma-spray coatings for a reusable melting crucible

2017 ◽  
Vol 326 ◽  
pp. 429-435 ◽  
Author(s):  
Ki-Hwan Kim ◽  
Jong Hwan Kim ◽  
Ki-Won Hong ◽  
Jeong-Yong Park ◽  
Chan-Bock Lee
Keyword(s):  
High Temperature ◽  
Plasma Spray ◽  
Spray Coatings ◽  
Plasma Spray Coatings ◽  
Melting Crucible

A Study on Thermal Spray Coatings of Recuperators

1996 ◽  
Author(s):  
B.G. Seong ◽  
S.Y. Hwang
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Molten Salt ◽  
High Temperature Corrosion ◽  
Maximum Temperature ◽  
Corrosion Mechanism ◽  
Spray Coatings ◽  
Arc Spray ◽  
Salt Corrosion ◽  
Hvof Spray

Abstract High temperature corrosion is a serious problem on tlie heat exchanger tubes of recuperators because they encounter an corrosive environment at maximum temperature around 900°C. These tubes were found to be corroded via oxidation, sulfidation and molten salt corrosion. Particularly molten salt corrosion could be the most severe corrosion mechanism. As a protective coating for recuperators, nickel and cobalt based self-fluxing alloys, iron based amorphous alloy and chromium carbide cermet coatings were considered. These coatings were prepared by an arc spray and or/not fusing or a HVOF spray. Their molten salt corrosion resistance was tested, and the high temperature corrosion resistance in a SO2 containing atmosphere was examined. Also microstructures of the coatings were studied after corrosion tests.

INCONEL ALLOY 671

Alloy Digest ◽  
1972 ◽  
Vol 21 (10) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Surface Treatment ◽  
Heat Treating ◽  
High Temperature Corrosion ◽  
Chromium Alloy ◽  
Inconel Alloy ◽  
Nickel Chromium ◽  
Temperature Performance

Abstract INCONEL ALLOY 671 is a nickel-chromium alloy having excellent resistance to high-temperature corrosion. This datasheet provides information on composition, physical properties, hardness, 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: Ni-180. Producer or source: Huntington Alloy Products Division, An INCO Company.

ACI TYPE HN

Alloy Digest ◽  
1982 ◽  
Vol 31 (6) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Steel Casting ◽  
Nickel Content ◽  
Heat Treating ◽  
High Temperature Corrosion ◽  
Temperature Performance ◽  
Wide Range ◽  
Iron Chromium

Abstract Type HN is an iron-chromium-nickel alloy containing sufficient chromium for good high-temperature corrosion resistance and with nickel content in excess of the chromium. This alloy has properties somewhat similar to the more widely used ACI Type HT alloy but with better ductility. Type HN is used for highly stressed components in the 1800-2000 F temperature range. It is used in the aircraft, automotive, petroleum, petrochemical and power industries for a wide range of components and parts. 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 casting, heat treating, machining, and joining. Filing Code: SS-410. Producer or source: Various stainless steel casting companies.

scholarly journals Exploring the Effect of Silicon on the High Temperature Corrosion of Lean FeCrAl Alloys in Humid Air

2021 ◽  
Author(s):  
T. Sand ◽  
A. Edgren ◽  
C. Geers ◽  
V. Asokan ◽  
J. Eklund ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Oxidation Behavior ◽  
High Temperature Corrosion ◽  
The Other ◽  
Oxide Scales ◽  
Protective Oxide ◽  
New Approach ◽  
Fecral Alloys ◽  
Cr Evaporation

AbstractA new approach to reduce the chromium and aluminium concentrations in FeCrAl alloys without significantly impairing corrosion resistance is to alloy with 1–2 wt.% silicon. This paper investigates the “silicon effect” on oxidation by comparing the oxidation behavior and scale microstructure of two FeCrAl alloys, one alloyed with silicon and the other not, in dry and wet air at 600 °C and 800 °C. Both alloys formed thin protective oxide scales and the Cr-evaporation rates were small. In wet air at 800 °C the Si-alloyed FeCrAl formed an oxide scale containing mullite and tridymite together with α- and γ-alumina. It is suggested that the reported improvement of the corrosion resistance of Al- and Cr-lean FeCrAl’s by silicon alloying is caused by the appearance of Si-rich phases in the scale.

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