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RISS 인기검색어
- 검색키워드
- 저자 : Staehle, R. W. (검색결과 3 건)
- 무료
- 기관 내 무료
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Future and Benefits of Corrosion Research
Staehle, Roger W. 한국부식방식학회 2002 Corrosion Science and Technology Vol.31 No.1
The subject of corrosion is a design science. The subject of stress analysis is a design science as is the subject of heat transfer. When the subject of corrosion is considered in the framework design a clear framework of the priorities and objectives becomes $pparent. Further, corrosion becomes a more explicit and important subject in the overall design, manufacturing and operation phases of equipment; in this framework, the funding and support of corrosion work is necessary to the designers and users of equipment. The subject of corrosion is usually less important in the early stages of operation of equipment; in these early stages,the subjects of stress analysis and heat transfer are usually more important as are similar performance-related subjects. Corrosion becomes important to the longer term reliability and safety of equipment. Corrosionis often a principal determiner of design life. Corrosion is often more important after the manufacturingwarranty is expired; therefore the subject is often more important to the user than to the manufacturer. In order that the subject of corrosion is considered and incorporated in the design as well as in user specifications, there must be a language and means of easily understood communication between the design-operation community and the conosionn community. For example, the designers do not understand the language of "pitting potential;" rather, they understand design life and permissible stress. Thus, corrosion must be put into terms that can be understood and utilized by designers and operators. Two methodologies have been developed for communicating effectively between the corrosion and the design communities; these are the "Corrosion Based Design Approach" and the "Location for Analysis Matrix." These provide simple check off lists to designers for asking questions and assuring that credible answers have been obtained on issues that affect reliable and cconomic performance. Both of these subject are discussed in this presentation. The future of corrosion research is its effective linkage with design and operation of equipment. The benefits include lower life cycle cost, higher reliability, and public safety.
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Effect of alloying Copper on the Corrosion Resistance of Stainless Steels in Chloride Media
Ujiro, T.,Satoh, S.,Staehle, R. W.,Smyrl, W. H. 한국부식방식학회 2003 Corrosion Science and Technology Vol.2 No.3
In order to explain the effect of alloying Cu on the corrosion resistance of stainless steels in chloride mediaIbr both ferritic and austenitic stainless steels, the corrosion behavior of Cu-hearing stainless steels was investigated. Alloying Cu showed heneticial effect in an active potential range and harmful effect in a noble potential range. The beneticial effect of alloying Cu was explained by the stability of deposited Cu on an anodic surface. Difference in the effect of alloying Cu between the ferritic and austenitic steels was ascribed by the differences in their corrosion potentials and thc morphology of the deposited Cu.
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