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Stress corrosion of Ni-based superalloys [PDF]
Materials at High Temperatures, 2017 AbstractThe development of gas turbines to increase fuel efficiency is resulting in progressively higher operating temperatures in the under platform regions of the blades. These regions have traditionally been considered low risk areas. However, higher metal temperatures combined with stresses and the deposition of contaminants from the cooling air ...
Brooking, Laurie +3 more
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Zaštita Materijala, 2016 This paper presents a brief review on various types of single crystal Ni-based superalloys designed over the recent years. The design principles to achieve required mechanical properties and microstructural stability over the long time exposure to high ...
Roman Sowa +2 more
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On the origin of mosaicity in directionally solidified Ni-base superalloys [PDF]
Acta Materialia, 2021 This article addresses the formation of low angle grain boundaries which give rise to mosaicity, a phenomenon which has only recently received attention in the single crystal Ni-base superalloy field. In this work, post-mortem advanced microscopy characterisation techniques are employed to deduce the dendrite tip growth kinetics from transverse ...
Joel Strickland +8 more
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Materials & Design, 2022 The adaptation of additive manufacturing (AM) for Ni-based superalloys has gained significance in aerospace and power-generation industries due to the ability to fabricate complex, near-net-shape components on-demand and with minimal material waste ...
Nana Kwabena Adomako +2 more
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Journal of Materials Research and Technology, 2023 Direct hot forging of heavily-alloyed Ni-based superalloy castings usually ends up with severe cracking due to serious macro-segregation. To address this issue, we propose to use hot extrusion as the replacement technology to process this kind of ...
Xingyu Pan +3 more
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Energy-Assisted additive manufacturing for weldable and non-weldable Ni-based superalloys: a review
Virtual and Physical PrototypingAdditive manufacturing (AM) of Ni-based superalloys has garnered significant attention for fabricating complex, high-performance components in aerospace, gas turbines, and other demanding applications, owing to its ability to achieve intricate geometries
Junmyoung Jang +7 more
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Journal of Alloys and Metallurgical SystemsThe exceptional high-temperature mechanical properties of Ni-based superalloys are mainly stemmed from the L12 γ' phase, therefore it is crucial to discover Ni-based superalloys with high γ' solvus temperatures.
Yunfei Ren +5 more
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Thermal stability of Ni-based superalloys fabricated through additive manufacturing: A review
Journal of Materials Research and TechnologyAdditive manufacturing (AM) is a cutting-edge technique that builds parts by adding layers from a digital design and depositing materials selectively where required. AM is vital in industries like aerospace, healthcare, and automotive because of benefits
Hedayat Hamdi, Hamid Reza Abedi
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SolidsHardness decreases as indentation depth increases at both the nano- and micro-meter scales. By incorporating interfacial contributions, the indentation size effect can provide valuable information on the deformation behaviors of Ni-based single-crystal ...
Zhiwei Zhang +4 more
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Crystals, 2020 The Ni content is a crucial factor for the development of γ′-strengthened Co-based superalloys and some studies have systematically addressed its influence on various properties in model superalloys.
Christopher H. Zenk +4 more
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