CW6MC is a nickel-based alloy designed to withstand acidic environments for Oil & Gas industry, including mainly cast valves and pipes. In the current work, the revert addition effect on alloy properties was analyzed. Revert is to be intended as runners, feeders, and waste that are discarded by foundries. Trying to reuse them, re-melting scrap in further castings could be an innovative way to recycle a high-value material. In the present thesis work, four specimens with different compositions were studied, containing respectively 0%, 30%, 70%, and 100% of revert. Macrostructure and microstructure properties, chemical composition, defects, and hardness of the four samples were analyzed to understand and the effect of changes induced by scrap content on material properties.
CW6MC è una lega a base di nichel progettata per resistere agli ambienti acidi per l'industria Oil & Gas, comprese principalmente valvole e tubi in ghisa. Nel lavoro corrente, è stato analizzato l'effetto dell'addizione inversa sulle proprietà della lega. Revert è da intendersi come corridori, alimentatori e rifiuti che vengono scartati dalle fonderie. Cercare di riutilizzarli, rifondere gli scarti in ulteriori fusioni potrebbe essere un modo innovativo per riciclare un materiale di alto valore. Nel presente lavoro di tesi, sono stati studiati quattro campioni con diverse composizioni, contenenti rispettivamente 0%, 30%, 70% e 100% di inversione. Le proprietà della macrostruttura e della microstruttura, la composizione chimica, i difetti e la durezza dei quattro campioni sono stati analizzati per comprendere l'effetto dei cambiamenti indotti dal contenuto di scarto sulle proprietà del materiale. Parole
Effect of the internal revert recycle on the nickel-based alloy (CW6MC)
Alimohammadi, Mohammad
2020/2021
Abstract
CW6MC is a nickel-based alloy designed to withstand acidic environments for Oil & Gas industry, including mainly cast valves and pipes. In the current work, the revert addition effect on alloy properties was analyzed. Revert is to be intended as runners, feeders, and waste that are discarded by foundries. Trying to reuse them, re-melting scrap in further castings could be an innovative way to recycle a high-value material. In the present thesis work, four specimens with different compositions were studied, containing respectively 0%, 30%, 70%, and 100% of revert. Macrostructure and microstructure properties, chemical composition, defects, and hardness of the four samples were analyzed to understand and the effect of changes induced by scrap content on material properties.File | Dimensione | Formato | |
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https://hdl.handle.net/10589/173697