Effect of Chemical Composition, Thermal Treatment, and Caustic Concentration on the SCC Behavior of Alloy 800
| Autor: | M. Vittori, Alberto Borello, A. Mignone, M. F. Maday |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Materials science
General Chemical Engineering Metallurgy Alloy technology industry and agriculture chemistry.chemical_element General Chemistry Thermal treatment Intergranular corrosion engineering.material Corrosion chemistry.chemical_compound chemistry Sodium hydroxide engineering General Materials Science Stress corrosion cracking Inconel Titanium |
| Zdroj: | CORROSION. 46:57-65 |
| ISSN: | 1938-159X 0010-9312 |
| DOI: | 10.5006/1.3585067 |
| Popis: | This paper presents a study of the influence of chemical composition and microstructural changes on the caustic stress corrosion resistance of Inconel 800 alloy (UNS N08800). Slow strain rate tests were performed in deaerated sodium hydroxide solutions (up to 10%), at 350°C, on mill-annealed and sensitized specimens with various aluminum, titanium and carbon contents. The microalloying elements, titanium and aluminum, have been shown to improve the intergranular stress corrosion cracking (IGSCC) performance of the low C (0.03%) materials but did not compensate for the deleterious effect of carbon in the high C (0.06%) heat. Alloys with different metallurgical states, resulting from different manufacturing processes, had similar behavior. A heat treatment at 575°C for 100 hours, producing sensitized structures, was generally detrimental. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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