Hot corrosion behaviour of Hastelloy X and Inconel 625 in an aggressive environment for superalloys for high-temperature energy applications

Hariharan, M. Kamatchi; Anderson, A.; Raghavan, Krishnamoorthy Narasu; Nithya, S.

doi:10.1007/s13204-021-02077-y

Cited by 8 publications

(1 citation statement)

References 23 publications

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“…It offers excellent corrosion resistance, in addition to its good mechanical properties. Among its properties, it can Machines 2024, 12, 253 2 of 15 include a high resistance to pitting and crevice corrosion, in addition to stress corrosion cracking [17]. On the one hand, its high chromium content ensures a good resistance in oxidizing media, while on the other hand, molybdenum and tungsten provide resistance in reducing media.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing via Plasma Metal Deposition of Hastelloy C-22 Specimens Made from Particles with Different Granulometries

Montealegre-Meléndez,

Pérez-Soriano,

Ariza

et al. 2024

Machines

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Additive manufacturing techniques offer significant advantages for creating complex components efficiently, saving both time and materials. This makes them particularly appealing for producing parts from intricate alloys, such as Hastelloy C-22. One such technique, plasma metal deposition, uses plasma on powdered material to build up layers. The novelty of this work is to analyze and determine whether there is a correlation between the particle size and the final behaviour of specimens produced via additive manufacturing. To achieve this, four powders with an identical chemical composition but different granulometries were employed. Additionally, some of the samples underwent thermal treatment (progressive heating at 10 °C/min until 1120 °C, maintained for 20 min, followed by rapid air cooling). Four walls were constructed, and after mechanical, tribological, and microstructural characterization, it was determined that the influence of the thermal treatment remained consistent, regardless of particle size. It was observed that the particle size slightly affected the final properties: the finer the powder, the lower the ultimate tensile strength values. Furthermore, it was evident that the thermal treatment substantially affected the microstructure and wear behavior of all the specimens, regardless of their initial particle size.

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Section: Introductionmentioning

confidence: 99%