Shusuo Li
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View article: Effect of static overheating thermal exposure and thermal cycles on microstructure evolution and stress rupture property of a Ni-based single-crystal superalloy
Effect of static overheating thermal exposure and thermal cycles on microstructure evolution and stress rupture property of a Ni-based single-crystal superalloy Open
This study explores the microstructure evolution of a Ni-based single-crystal superalloy under 1200 °C isothermal exposure and thermal cycling ranging from 25 °C to 1200 °C, focusing on its impact on stress rupture performance at 760 °C/75…
View article: Effect of Hot Isostatic Pressing on Mechanical Properties of K417G Nickel-Based Superalloy
Effect of Hot Isostatic Pressing on Mechanical Properties of K417G Nickel-Based Superalloy Open
The cast nickel-based superalloy K417G exhibits excellent high-temperature strength, but non-equilibrium solidification during casting can cause defects such as irreparable interdendritic microporosity, which significantly degrades its fat…
View article: Superdislocations activated by 1200 °C creep in Ni3Al phase of a single crystal superalloy: Non-coplanar configuration and motion model
Superdislocations activated by 1200 °C creep in Ni3Al phase of a single crystal superalloy: Non-coplanar configuration and motion model Open
Superdislocations in Ni3Al precipitates of single crystal (SX) superalloys are activated during ultra-high temperature creep, but such dislocations' configuration and possible motive mode remains unclear. In this paper, we systemically ana…
View article: Unveiling the effect of stress on vacancy diffusion isotropy at high temperature in Ni-Re Systems: Insights from atomic simulations
Unveiling the effect of stress on vacancy diffusion isotropy at high temperature in Ni-Re Systems: Insights from atomic simulations Open
Stress-affected vacancy diffusion significantly impacts the element distributions in Ni-based single-crystal (SX) superalloys, determining their precipitate coarsening and creep behaviors under service conditions consequently. Rhenium (Re)…
View article: Improving oxidation resistance property of single-crystal Ni-based superalloy via utilizing high temperature aging-induced dislocations
Improving oxidation resistance property of single-crystal Ni-based superalloy via utilizing high temperature aging-induced dislocations Open
It is hard to improve the oxidation resistance property of single-crystal (SC) Ni-based superalloys except for alloying design since monocrystalline lacks defects such as grain boundaries that are beneficial for antioxidant elemental diffu…
View article: Synergistic effects of Al and Mo on coarsening kinetics of Ni-based superalloys at 1200°C
Synergistic effects of Al and Mo on coarsening kinetics of Ni-based superalloys at 1200°C Open
The interaction effects of γ-strengthening and γ'-former elements have long troubled the alloying design of superalloys, especially improving γ'-thermostability by Al addition against higher temperatures. Here we establish a thermodynamics…
View article: High temperature in-situ synchrotron X-ray diffraction technique of thermal barrier coatings under thermal gradient and mechanical loads
High temperature in-situ synchrotron X-ray diffraction technique of thermal barrier coatings under thermal gradient and mechanical loads Open
Thermal barrier coatings (TBCs) are commonly used for thermal protection in aero-engine and gas turbine. TBCs are in service under severe environments where high temperatures and high loads, as well as large thermal gradients. Reproducing …
View article: Multi-scale influences of as-cast microstructure heritability on intermediate/high temperature stress rupture behaviors of [111]-oriented Ni-based single crystal superalloy
Multi-scale influences of as-cast microstructure heritability on intermediate/high temperature stress rupture behaviors of [111]-oriented Ni-based single crystal superalloy Open
This study challenges the generally accepted principle that some degree of as-cast microstructure heritability (CMH), marked by -oriented dendrite-associated inhomogeneity, is tolerable in conventional [001]-oriented Ni-based single cryst…
View article: Study on Ni3Al-Based Single Crystal Superalloy Joints Brazed by Vacuum Brazing with Zr-Containing Filler
Study on Ni3Al-Based Single Crystal Superalloy Joints Brazed by Vacuum Brazing with Zr-Containing Filler Open
Melting point depressants (MPDs) are required to lower the melting point of filler for brazing. In this study, Zr was used as the MPD, and powder filler was prepared by adjusting the Zr and Mo content referring to Thermo-Calc calculations.…
View article: THz-TDS characterization of stress evolution of EB-PVD TBCs under thermal cycling
THz-TDS characterization of stress evolution of EB-PVD TBCs under thermal cycling Open
The failure of thermal barrier coatings (TBCs) during service is a critical issue affecting aeroengine efficiency. In this study, electron beam physical vapor deposition (EB-PVD) TBCs were subjected to thermal cycling at 1100 °C. Terahertz…
View article: Liberalizing the effects of Al and Cr in coatings for enhanced interface stability with Mo-rich Ni3Al-based superalloys
Liberalizing the effects of Al and Cr in coatings for enhanced interface stability with Mo-rich Ni3Al-based superalloys Open
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…
View article: Recrystallization behavior of a high γ′-fraction Ni-based single crystal superalloy induced by residual strain
Recrystallization behavior of a high γ′-fraction Ni-based single crystal superalloy induced by residual strain Open
The static recrystallization (SRX) of the designed high γ′-fraction Ni-based single crystal superalloy (SX) AlloyX was investigated. The three-dimensional SRX threshold of AlloyX involves plastic strain – deformation temperature – heat tre…
View article: Transfer learning enables the rapid design of single crystal superalloys with superior creep resistances at ultrahigh temperature
Transfer learning enables the rapid design of single crystal superalloys with superior creep resistances at ultrahigh temperature Open
Accelerating the design of Ni-based single crystal (SX) superalloys with superior creep resistance at ultrahigh temperatures is a desirable goal but extremely challenging task. In the present work, a deep transfer learning neural network w…
View article: High-temperature thermal fatigue of Ni3Al-based single crystal alloy affected by wall thickness and peak temperature
High-temperature thermal fatigue of Ni3Al-based single crystal alloy affected by wall thickness and peak temperature Open
Complex thin-walled structures are commonly employed in turbine components to improve cooling efficiency. However, thin-walled blades are prone to thermal fatigue failure due to the high thermal stress induced by frequent and abrupt temper…
View article: Study on microstructure evolution and failure behavior of Ni3Al-based single crystal superalloy joints brazed with Ni-based filler
Study on microstructure evolution and failure behavior of Ni3Al-based single crystal superalloy joints brazed with Ni-based filler Open
The microstructural characteristics of brazing seams significantly influence the mechanical properties of brazed joints. In this study, a novel Ni3Al-based single crystal superalloy(Alloy 1) with high Mo content was brazed with a Ni–B–Si–T…
View article: Characteristics and hot corrosion behavior of NiCrAlY metal bonding layers prepared by different processes
Characteristics and hot corrosion behavior of NiCrAlY metal bonding layers prepared by different processes Open
The hot corrosion experiments of René N5 alloy coated with three different NiCrAlY metal bonding layers are carried out, that the layers are prepared by different methods (APS, HVAF and MIP). Compared with bare René N5 alloy samples, the h…
View article: Creep failure mechanism of <111>-oriented thin-wall Ni3Al-based single crystal superalloys
Creep failure mechanism of -oriented thin-wall Ni3Al-based single crystal superalloys Open
Currently, thin-walled structures are widely employed in aviation engine turbine blades to enhance cooling efficiency. However, the mechanical properties of thin-walled structures exhibit significant sensitivity to thickness. This study in…
View article: Hot corrosion behavior analysis and diffusion equation construction based on laser wire additive manufacturing GH3039
Hot corrosion behavior analysis and diffusion equation construction based on laser wire additive manufacturing GH3039 Open
Laser wire additive manufacturing GH3039 samples with different process parameters are prepared. Then, hot corrosion test (Na2SO4+NaCl at 900 °C) is carried out. High power (5000 w), parallel to the deposition layer interface processing sa…
View article: Correlating microstructure recovery to rejuvenation of high-temperature creep properties in a crept single-crystal superalloy
Correlating microstructure recovery to rejuvenation of high-temperature creep properties in a crept single-crystal superalloy Open
Academic debate still exists as to whether and how multi-scale microstructure recovery is linked to creep properties rejuvenation of superalloys. We propose a rejuvenation heat treatment (RHT) for one single-crystal superalloy crept at 110…
View article: The secondary orientation effect of single crystal superalloy thin-wall specimens at 850 °C with [001] primary orientation
The secondary orientation effect of single crystal superalloy thin-wall specimens at 850 °C with [001] primary orientation Open
An interesting phenomenon is found in Nickel-based single crystal superalloy thin-wall specimens which have the same [001] primary orientation and different secondary orientation with [100], [210], and [110] at 850 °C. Generally, the testi…