Abstract
SHS investigation development is considered from the geographical and historical viewpoint. 3 stages are described. Within Stage 1 the work was carried out in the Department of the Institute of Chemical Physics in Chernogolovka where the scientific discovery had been made. At Stage 2 the interest to SHS arose in different cities and towns of the former USSR. Within Stage 3 SHS entered the international scene. Now SHS processes and products are being studied in more than 50 countries.
Abstract
Cast steels are chemically unstable in air-saturated water and other solutions at ambient temperatures. Their commercial applications therefore depend on protective mechanisms: passivation and formation of thin oxide films, prevention of passivity breakdown, cathodic protection, coatings, control of chemical composition and microstructure, along with their service conditions (stress, fatigue, voids and erosioncorrosion). The corrosion of steel castings is usually considered as a problem involving chemical (carbon content, alloying), microstructure (austenite, ferrite-austenite) and quality (non-metallic inclusions, gases, segregation, grain size) parameters. In this chapter, some topics concerning the manufacturing of corrosion-resistant steel castings are considered.
Keywords:
Composition, Duplex structure, Passivation, Microstructure, Types of corrosion.
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Authors:Bentham Science Books