Results 61 to 70 of about 9,930 (219)
Clean recycling of spent nickel-based single-crystal superalloy by molten magnesium
Nickel-based single-crystal superalloys are designed for extreme conditions due to their superior corrosion and creep resistance properties. However, these pose challenges in the subsequent recycling after reaching their end-of-life. Molten magnesium (Mg)
Hao Li +6 more
doaj +1 more source
This study demonstrates that in high‐alloy systems, nanoclusters with high solute tolerance can effectively suppress compositional segregation. This mitigation leads to a concurrent 18.7% increase in strength and 41.5% improvement in ductility, which is attributed to a shear‐bypass synergistic strengthening mechanism. The findings provide a new pathway
Wei Yu +10 more
wiley +1 more source
Twinning-induced shear fracture of sub-micrometer Ni-based single-crystal superalloys at 900°C
Topologically close-packed (TCP) precipitates and deformation twins significantly impact the high-temperature performances of Ni-based single-crystal (SC) superalloys. However, their contributions to failure of superalloys remain unclear.
Zhe Hong +6 more
doaj +1 more source
Materials for advanced rocket engine turbopump turbine blades [PDF]
A study program was conducted to identify those materials that will provide the greatest benefits as turbine blades for advanced liquid propellant rocket engine turbines and to prepare technology plans for the development of those materials for use in ...
Chandler, W. T.
core +1 more source
Deformation‐Induced Formation of Stray Grains in Additive Manufacturing of Single Crystals
Stray grain formation severely limits the additive manufacturing of single‐crystal alloys. By integrating in situ synchrotron techniques, ex situ characterization, and multi‐scale multi‐physics modeling, the authors reveal that stray grains originate from dislocations at the solid‐liquid interface, rather than thermal supercooling in conventional ...
Dongsheng Zhang +11 more
wiley +1 more source
On the effect of Ti on Oxidation Behaviour of a Polycrystalline Nickel-based Superalloy [PDF]
Titanium is commonly added to nickel superalloys but has a well-documented detrimental effect on oxidation resistance. The present work constitutes the first atomistic-scale quantitative measurements of grain boundary and bulk compositions in the oxide ...
Bagot, P. A. J. +8 more
core +1 more source
This work demonstrates that replacing Ti with Nb in maraging steel forms nanoscale Nb–Mo particles along boundaries, strengthening the alloy without relying on Ti phases. Heat‐treatment tuning promotes uniform crystal orientation and balanced grain boundaries, enabling strong yet ductile behavior.
Mohamad Masoumi +14 more
wiley +1 more source
The interfacial behaviors between protective coatings and substrate single-crystal superalloys significantly impact their service performances. This work focuses on the elements interdiffusion and microstructural evolution at the interface between a ...
Lilun Geng +10 more
doaj +1 more source
Application of single crystal superalloys for Earth-to-orbit propulsion systems [PDF]
Single crystal superalloys were first identified as potentially useful engineering materials for aircraft gas turbine engines in the mid-1960's. Although they were not introduced into service as turbine blades in commercial aircraft engines until the ...
Dreshfield, R. L., Parr, R. A.
core +1 more source
Advanced materials research for long-haul aircraft turbine engines [PDF]
The status of research efforts to apply low to intermediate temperature composite materials and advanced high temperature materials to engine components is reviewed.
Blankenship, C. P., Signorelli, R. A.
core +1 more source

