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Article
Influence of Intercritical Temperature on the Microstructure and Mechanical Properties of 6.5 Pct Ni Steel Processed by Ultra-fast Cooling, Intercritical Quenching and Tempering
A novel treatment comprised of ultra-fast cooling, intercritical quenching and tempering is proposed to modify the microstructure and improve the mechanical properties of low-concentration Ni-containing steel ...
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Article
High-dimensional and high-resolution x-ray tomography for energy materials science
At the forefront of developments in synchrotron x-ray microscopy, nanoscale-resolution high-dimensional spectrotomography under controlled sample environments has been demonstrated. Such cutting-edge experimen...
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Article
Combination of water-soluble chemical grafting and gradient freezing to fabricate elasticity-enhanced and anisotropic nanocellulose aerogels
Lignocellulosic nanofibrils (CNFs) are among the most well-known renewable and biocompatible materials. Aerogels assembled from these high aspect ratio CNFs are highly porous and ultralight. However, CNF aerog...
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Article
Microstructural Evolution and Mechanical Properties of Nickel-Base Superalloy Brazed Joints Using a MPCA Filler
A new multi-principal-component alloy (MPCA) filler metal with the composition Fe5Co20Ni20Mn35Cu20 was designed for brazing Ni-base Alloy 600 (Ni-Cr-Fe). Thermodynamic calculations, including atomic size differen...
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Article
Flame-retardant quasi-solid polymer electrolyte enabling sodium metal batteries with highly safe characteristic and superior cycling stability
Conventional liquid electrolytes based sodium metal batteries suffer from severe safety hazards owing to electrolyte leakage, inflammability and dendritic sodium deposition. Herein, we report a flame-retardant...
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Article
Evolution Mechanism of Inclusions in Medium-Manganese Steel by Mg Treatment with Different Aluminum Contents
To investigate the effect of magnesium addition on the evolution of inclusions in medium-manganese steel with different aluminum contents, both thermodynamic calculation and high-temperature simulation experim...
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Article
Open AccessAtomic Layer Deposited Hf0.5Zr0.5O2-based Flexible Memristor with Short/Long-Term Synaptic Plasticity
Artificial synapses are the fundamental of building a neuron network for neuromorphic computing to overcome the bottleneck of the von Neumann system. Based on a low-temperature atomic layer deposition process,...
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Article
Open AccessAtomic Layer-Deposited HfAlOx-Based RRAM with Low Operating Voltage for Computing In-Memory Applications
With Moore’s law closing to its physical limit, traditional von Neumann architecture is facing a challenge. It is expected that the computing in-memory architecture-based resistive random access memory (RRAM) ...
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Article
Use of X-ray Computed Tomography to Investigate Rolling Contact Cracks in Plasma Sprayed Fe–Cr–B–Si Coating
Rolling contact fatigue (RCF) crack behavior within plasma sprayed coating is investigated. RCF experiments of coatings are conducted under rolling contact. Acoustic emission (AE) is used to monitor the on-lin...
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Article
The time-dependent cellular response mechanism upon exposure to zinc oxide nanoparticles
Zinc oxide nanoparticle is one of the nanomaterials people engaged most in their life and its health effect has been taken into concern. In this work, A549 cell line was used as cell model, and the cytotoxicit...
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Article
Microstructure Evolution and Strain-Dependent Constitutive Modeling to Predict the Flow Behavior of 20Cr–24Ni–6Mo Super-Austenitic Stainless Steel During Hot Deformation
Hot compression tests were carried out with specimens of 20Cr–24Ni–6Mo super-austenitic stainless steel at strain rate from 0.01 to 10 s−1 in the temperature range from 950 to 1150 °C, and flow behavior was analy...
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Article
Origin of Insignificant Strengthening Effect of CNTs in T6-Treated CNT/6061Al Composites
Carbon nanotube (CNT)-reinforced 6061Al (CNT/6061Al) composites were fabricated via powder metallurgy combined with friction stir processing (FSP). CNTs were dispersed after FSP and accelerated the precipitati...
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Article
The Role of Retained Austenite on the Mechanical Properties of a Low Carbon 3Mn-1.5Ni Steel
The present studies focus on the correlation between retained austenite characteristics and the cryogenic temperature Charpy impact toughness, strength, and plasticity. The steels with different volume fractio...
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Article
Correlations of Ni Contents, Formation of Reversed Austenite and Toughness for Ni-Containing Cryogenic Steels
It has been widely demonstrated that addition of Ni in low-carbon steels can effectively improve the cryogenic toughness, but the mechanism behind it has yet to be clarified. In the present work, the evolution...
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Article
Evolution of Dislocation Loops in AL-6XN Stainless Steels Irradiated by Hydrogen Ions
AL-6XN stainless steels, one of the candidate structure materials for supercritical water-cooled reactor, were irradiated from 0.5 to 5 dpa using 100 keV H2 + ions at 290 and 380 °C. Micro...
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Article
Improvement of Surface Ridging Resistance of an Ultra-purified Ferritic Stainless Steel by Optimizing Hot Rolling Condition
The effects of the finisher entry temperatures (FETs) on the surface ridging behavior for an ultra-purified 21%Cr ferritic stainless steel have been investigated. The results indicate that decreasing the FET f...
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Article
Influence of Heat Treatments on the Microstructural Evolution and Resultant Mechanical Properties in a Low Carbon Medium Mn Heavy Steel Plate
In this study, the microstructural evolution and resultant mechanical properties in a low carbon medium Mn heavy steel plate were investigated in detail. The results show that the introduction of medium mangan...
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Article
Effects of Two-Stage Cold Rolling Schedule on Microstructure and Texture Evolution of Strip Casting Grain-Oriented Silicon Steel with Extra-Low Carbon
A 0.27 mm-thick grain-oriented silicon steel sheet with extra-low carbon was successfully produced by a novel processing route including strip casting, normalizing, two-stage cold rolling with an intermediate ...
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Article
Open AccessEnhanced NH3-Sensitivity of Reduced Graphene Oxide Modified by Tetra-α-Iso-Pentyloxymetallophthalocyanine Derivatives
Three kinds of novel hybrid materials were prepared by noncovalent functionalized reduced graphene oxide (rGO) with tetra-α-iso-pentyloxyphthalocyanine copper (CuPc), tetra-α-iso-pentyloxyphthalocyanine nickel...
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Article
Friction Stir Welding of ODS and RAFM Steels
Advanced structural materials such as oxide dispersion strengthened steels and reduced-activation ferritic/martensitic steels are desired in fusion reactors as primary candidate materials for first wall and bl...