The γ′ precipitate rafting and element distribution during hot isostatic pressing in a nickel-based superalloy

Zhou, Yu; Zhang, Zhao; Zhang, Zheng

doi:10.1016/j.matdes.2015.07.136

Cited by 17 publications

(1 citation statement)

References 20 publications

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“…This material can take clear advantage by HIPping. According to the literature [7,22,23,24,25,26,27,28,29,30], for precipitation-hardened superalloy such as Inconel 718, Inconel 625, FGH 4096, Waspaloy and Astroloy, microstructural features like γ′ size, volume fraction and dispersion greatly affect material properties. For example, the work of Rao on Inconel 718 [7] evidenced the relationship between the size of the reinforcing particles and the final mechanical properties of the samples.…”

Section: Introductionmentioning

confidence: 99%

Study of the Effects of Aging Treatment on Astroloy Processed via Hot Isostatic Pressing

et al. 2019

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The effect of aging treatment on Astroloy fabricated via hot isostatic pressing and subjected to super-, and sub- solvus solutioning has been investigated. The evolution of hardness and microstructural features were followed after each step of the treatment. Since this alloy is commonly subjected to a double aging treatment at two different temperatures, particular attention was given to the effectiveness of the first aging treatment compared to the second one. Coarsening and modification of the γ′ reinforcing system together with carbides formation were made the object of research. The cooling rate used after solutioning treatment was also kept into account. Finally, a model to describe secondary and ternary gamma prime coarsening upon aging treatments is presented.

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