Characterization of the aging state of modified HP steels by ultrasonic signal processing and the effect of creep voids in the interdendritic region

Natalie C. de Siqueira,Monica P. Arenas, Priscila D. de Almeida,Leonardo S. Araújo,Carlos B. Eckstein,Laudemiro Nogueira,Luiz H. de Almeida,Gabriela R. Pereira

Journal of Materials Research and Technology（2018）

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摘要

HP austenitic stainless steels are extensively used in the oil and gas industry as radiant tubes in reformer and pyrolysis furnaces. These steels exhibit high resistance to oxidation, thermal stability, and creep resistance at elevated temperatures.

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关键词

HP austenitic steels,Aging,Creep voids,Ultrasonic testing,Spectral analysis,Ultrasonic parameters

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