55 Result(s)
within
**ng Yongchang
Nanotechnology
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Article
High-Temperature Fatigue Behavior of Inertia Friction Welded Joints of GH4065A Ni-Based Superalloy
In this work, the novel Ni-based superalloy GH4065A inertia friction welding (IFW) joints were subjected to the post-welding heat treatments (PWHT) at 730 ℃ for 5 h or 760 ℃ for 5 h, and the differences in mic...
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Article
Improving Tensile Properties of Dissimilar TLP Bonding Joints of IN718 Nickel-Based Superalloy/316LN Austenitic Steel by Long-Term Post-bonded Homogenization Treatment
The presence of boride precipitates has a detrimental impact on the mechanical properties of TLP bonding joints. This study investigated the effectiveness of the long-term post-bonded homogenization treatment ...
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Article
Open AccessDesign Strategies for Aqueous Zinc Metal Batteries with High Zinc Utilization: From Metal Anodes to Anode-Free Structures
Representative methods for calculating the depth of discharge of different Zn anodes are introduced.
Recent advances of aque...
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Article
Open AccessPhase patterning of metallic glasses through superfast quenching of ion irradiation-induced thermal spikes
Amorphous metallic glasses (MGs) convert to crystalline solids upon annealing at a high temperature. Such a phase change, however, does not occur with the local melting caused by damage cascades introduced by ...
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Achieving High Strength and High Electrical Conductivity of Additive Manufactured CuCrZr Alloys: The Role of the Post-Heat Treatments on Microstructure and Properties
In this work, two different types of post-heat treatment processes were developed for additively manufactured CuCrZr alloy. The effect of post-heat treatment on the microstructure and properties of as-built Cu...
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Article
Open AccessInvestigation of hollow mesoporous NiFe2O4 nanospheres fabricated via a template-free solvothermal route as pH-responsive drug delivery system for potential anticancer application
A novel magnetic-targeted pH-responsive intelligent drug carrier based on hollow mesoporous structured NiFe2O4 nanospheres was designed and developed for potential anticancer treatment in the present study. The h...
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Article
Prediction of M–A Constituents and Impact Toughness in Stir Zone of X80 Pipeline Steel Friction Stir Welds
This study explored a strategy for predicting the proportion of martensite–austenite (M–A) constituents and impact toughness of stir zone (SZ) on X80 pipeline steel joints welded by friction stir welding (FSW)...
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Article
Hot Deformation Behavior of ATI 718Plus Alloy with Different Microstructures
In this work, the effect of microstructure on hot deformation behavior of ATI 718Plus (hereinafter refers to 718Plus) alloy was studied by isothermal compression test. The results showed that when the strain r...
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Article
Open AccessHuc-MSCs-derived exosomes attenuate inflammatory pain by regulating microglia pyroptosis and autophagy via the miR-146a-5p/TRAF6 axis
Chronic inflammatory pain significantly reduces the quality of life and lacks effective interventions. In recent years, human umbilical cord mesenchymal stem cells (huc-MSCs)-derived exosomes have been used to...
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Article
Modification Mechanism and Uniaxial Fatigue Performances of A356.2 Alloy Treated by Al-Sr-La Composite Refinement-Modification Agent
Modification mechanism and uniaxial fatigue properties of A356.2 alloy treated by Al-6Sr-7La and traditional Al-5Ti-1B/Al-10Sr (hereinafter refers to traditional treated alloy) were investigated by constant st...
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Article
Microstructure and Tensile Strength of the Bonded Interfaces and Parent Materials in W/ODS Steel Joints Fabricated by Direct SSDB
In the present work, Tungsten (W)/oxide dispersion strengthened (ODS) steel joints were fabricated by the direct solid state diffusion bonding (SSDB) technology with a multistage cooling process, and the micro...
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Article
Residual Ferrite Control of 9Cr ODS Steels by Tailoring Reverse Austenite Transformation
By tailoring the reverse austenite transformation behavior of 9Cr oxide dispersion strengthened (ODS) ferritic/martensitic steels, the residual ferrite in ODS steels can be controlled. The reverse austenite tr...
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Article
The Correlation Between the Microstructural Parameters and Mechanical Properties of Reduced Activation Ferritic–Martensitic (RAFM) Steel: Influence of Roll Deformation and Medium Temperature Tempering
The evolutionary behaviors of dislocations, sub-grain boundaries (SGBs), and precipitated carbide particles in 9Cr-1.7W-0.1C reduced activation ferritic–martensitic (RAFM) steel were studied by implementing va...
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Article
Microstructure Evolution of Primary γ′ Phase in Ni3Al-Based Superalloy
In this work, water cooling, air cooling (AC) and furnace cooling (FC) were applied to investigate the effect of cooling rate on microstructure evolution of primary γ′ in a newly designed Ni3Al-based alloy. The r...
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Article
Characterization of Microstructure and Stress Corrosion Cracking Susceptibility in a Multi-pass Austenitic Stainless Steel Weld Joint by Narrow-Gap TIG
In the present study, correlation of the microstructure and stress corrosion cracking (SCC) susceptibility in the top, middle and root regions of a multi-pass austenitic stainless steel weld joint fabricated b...
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Article
Influence of Yttrium Addition on the Reduction Property of Tungsten Oxide Prepared via Wet Chemical Method
W–Y2O3 composite nanopowders prepared via wet chemical method exhibit unique morphologies and microstructures. The yttrium addition during chemical reaction process affects not only the composition of tungsten ac...
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Article
Effects of Static Recrystallization and Precipitation on Mechanical Properties of 00Cr12 Ferritic Stainless Steel
The 00Cr12 ferritic stainless steel samples were isothermally held at different temperatures in the range of 700 °C to 1000 °C to investigate the effect of static recrystallization and precipitation on mechani...
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Article
Austenitizing Temperature Effects on the Martensitic Transformation, Microstructural Characteristics, and Mechanical Performance of Modified Ferritic Heat-Resistant Steel
The martensitic transformation, microstructural characteristics, and mechanical performance of modified ferritic heat-resistant steels under various austenitizing conditions were investigated by differential s...
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Article
Self-standing Na-storage anode of Fe2O3 nanodots encapsulated in porous N-doped carbon nanofibers with ultra-high cyclic stability
Ultrasmall γ-Fe2O3 nanodots (∼ 3.4 nm) were homogeneously encapsulated in interlinked porous N-doped carbon nanofibers (labeled as Fe2O3@C) at a considerable loading (∼ 51 wt.%) via an electrospinning technique. ...
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Article
Improvement of High-Temperature Mechanical Properties of Low-Carbon RAFM Steel by MX Precipitates
To investigate the influence of tantalum content on high-temperature mechanical properties of low-carbon reduced activation ferritic/martensitic (RAFM) steels, RAFM steels containing different tantalum content...
