53 Result(s)
within
English
Materials Science
Nanotechnology
Zhe** Yu
Article
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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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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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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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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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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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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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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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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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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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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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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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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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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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Enhancing High-Temperature Strength and Thermal Stability of Al2O3/Al Composites by High-Temperature Pre-treatment of Ultrafine Al Powders
Amorphous Al2O3-reinforced Al composite (am-Al2O3/Al) compacted from ultrafine Al powders for high-temperature usages confronts with drawbacks because crystallization of am-Al2O3 at high temperatures will result ...
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Low-Cycle Fatigue and Creep-Fatigue Behaviors of a Second-Generation Nickel-Based Single-Crystal Superalloy at 760 °C
Low-cycle fatigue (LCF) behaviors of a second-generation nickel-based single-crystal superalloys with [001] orientation at 760 °C have been investigated. Different strain amplitudes were introduced to investig...
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Triaxial Constraint and Tensile Strength Enhancement in Brazed Joints
A brazed joint consists of a low-melting point and thin interlayer sandwiched between the high-melting-point base materials, in which the interlayer strength is typically lower than that of the base material. ...
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Effect of grit blasting and subsequent heat treatment on stress rupture property of a Ni-based single-crystal superalloy SGX3
In the present study, the effect of grit blasting and subsequent heat treatment on the stress rupture properties of a third-generation nickel-based single-crystal superalloy SGX3 sheet was studied. It was foun...
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Machine Learning Hot Deformation Behavior of Nb Micro-alloyed Steels and Its Extrapolation to Dynamic Recrystallization Kinetics
In the present paper, a novel method was developed to predict the dynamic recrystallization (DRX) behavior during hot rolling based on machine learning in combination with physical models of niobium (Nb) micro...
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Size Effects on Dissolution Kinetics of Y-Enriched Precipitates in FeCrAlY Alloys During High-Temperature Oxidation
Our previous work demonstrated that the size of Y-enriched precipitates in FeCrAlY alloys have significant effects on their oxidation resistance. In the present work, the precipitate dissolution kinetics durin...
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Strong and conductive reduced graphene oxide-MXene porous films for efficient electromagnetic interference shielding
Lightweight, flexible, and electrically conductive porous films are promising for efficient electromagnetic interference (EMI) shielding. However, the mechanical and electrical properties of porous films are f...
