CORROSION RESISTANCE OF TANTALUM: Applications in the Chemical Industry

Abstract

Tantalum has a resistance to aqueous corrosion that may be compared closely with that of glass. The principal use of the metal is in the construction of chemical plant where its excellent corrosion‐resistant properties have assured a place for it in special applications, particularly where corrosion resistance needs to be combined with a high degree of heat transfer. This sphere of application is expanding rapidly.

Research of Environmental Factors of Aluminum Alloys Atmospheric Corrosion Based on Grey Relational Analysis

“…Aluminum alloys atmospheric corrosion is a kind of electrochemistry corrosion occurred under thin liquid film [13]. The thin liquid film forms on the surface of metals exposed to outdoor environment as a result of adsorption.…”

“…So, it can be understood that the environmental factors contain two parts, one is the meteorological factors which determine the formation and hold time of the metal surface liquid film, the other is pollutant factors which affect the concentration of the surface electrolyte. The meteorological factors and the pollutant factors needed in this paper are list in Table 1 [13].…”

“…In China, a 20-year exposure program of various materials was started in 1984. A national network was organized under the National Science and Technology Commission and National Natural Science Foundation of China to carry out the program [13]. Corrosion data can be obtained from the Test Station of Atmospheric Corrosion which includes corrosion rates of different kinds of materials at different exposure time.…”

Less Common Metals. Materials of Construction Review

“…The chemical industry, however, is largely concerned with corrosion problems, many of which can be avoided by substituting tantalum for other materials of construction (13,22). Further progress in corrosion technology disclosed that hydrogen embrittlement of tantalum in HC1 at 190°C.…”