scholarly journals Investigation of Mechanical Properties of Oxide Films Formed on Carbon Steel at High Temperature Corrosive Environments

2004 ◽  
Vol 53 (2) ◽  
pp. 76-82 ◽  
Author(s):  
Yoshinori Isomoto ◽  
Yasuhiro Mukai ◽  
Toshinori Tsumura
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Carbon Steel ◽  
Oxide Films ◽  
Corrosive Environments

scholarly journals Mechanical Properties and Adhesion of Oxide Films Formed on Pure Titanium at High Temperature Corrosive Environments

2006 ◽  
Vol 55 (1) ◽  
pp. 25-31 ◽  
Author(s):  
Yoshinori Isomoto ◽  
Takahiro Yamabe ◽  
Toki Yoshida ◽  
Toshinori Tsumura
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Oxide Films ◽  
Pure Titanium ◽  
Corrosive Environments

Exfoliation and Fracture Behavior of Oxide Films Formed on Titanium and Its Alloy in High Temperature Environments

2006 ◽  
Vol 522-523 ◽  
pp. 417-424 ◽  
Author(s):  
Yoshinori Isomoto Oka ◽  
Takahiro Yamabe ◽  
Toshinori Tsumura
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
High Temperature ◽  
Oxide Film ◽  
Oxide Films ◽  
Pure Titanium ◽  
Specimen Surface ◽  
Wide Range ◽  
Basic Behavior ◽  
Corrosive Environments

It is very difficult to obtain mechanical properties of oxide films formed on a material in high temperature environments despite its importance of estimating material degradation caused by such as thermal stress. Corrosion/oxidation tests were conducted for pure titanium and titanium alloy in high temperature corrosive environments of wet air and water vapor with hydrogen chloride at temperatures from 673 K to 973 K to look into basic behavior of degradation and the growth of titanium oxide films. It was found that oxide films were usually formed on the specimen surface and the growth was accelerated by the corrosiveness of the environment. In order to examine mechanical properties and exfoliation of corrosion products or oxide films formed on titanium and its alloy, tests of single particle impact on the specimen surface with a glass bead were performed in high temperature corrosive environments. The piling-up surfaces around impact craters were formed and plastically strained. The oxide film formed on the metal surface was detached in a wide range of the circumference and fractured a little far from the rim of the crater. Then fracture and exfoliation stress of the oxide film were estimated by the calculation of impact energy and fractured and detached areas. It was found that both the fracture and exfoliation stress of the oxide films were different depending on the corrosive environment and chemical composition of titanium alloy.

NIMAG 133

Alloy Digest ◽  
1976 ◽  
Vol 25 (6) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Vapor Pressure ◽  
Heat Treating ◽  
Pure Nickel ◽  
Gas Content ◽  
Temperature Performance ◽  
Commercially Pure ◽  
Corrosive Environments

Abstract NIMAG 133 is a wrought form of commercially pure nickel. It has good mechanical properties and excellent resistance to many corrosive environments. It has useful magnetic and magnetostrictive properties, high electrical and thermal conductivities, low gas content and low vapor pressure. Among its uses are plates (anodes) in vacuum tubes. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-229. Producer or source: Spang Industries Inc..

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