Results 51 to 60 of about 10,967 (293)

Research of Hot Ductility for ML40Cr with Cold Forging Steel

open access: yes, 2011
Hot ductility of ML40Cr steel at the temperatures from 700°C to 1300°C was measured on simulator Gleeble-1500. The results are as follows: the hot ductility reduces in temperature range of 950°C to 1300°C, and increases in temperature range of 700°C to ...
Zhan Ying Liu   +2 more
core   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

open access: yesAdvanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal   +3 more
wiley   +1 more source

Effect of Tin, Copper and Boron on the Hot Ductility of 20CrMnTi Steel between 650 °C and 1100 °C

open access: yesHigh Temperature Materials and Processes, 2015
The hot ductility of 20CrMnTi steel with x% tin, y% copper and z ppm boron (x = 0, 0.02; y = 0, 0.2; z = 0, 60) was investigated. The results show that tin and copper in 20CrMnTi steel are detrimental to its hot ductility while adding boron can eliminate
Peng Hong-bing   +3 more
doaj   +1 more source

Hot ductility of an Al-4wt.%Mg-0.5wt.%Cu alloy

open access: yes, 1997
The hot formability of an experimental Al-4wt.%Mg-0.5wt.%Cu alloy has been studied by means of hot torsion testing. The corresponding microstructures have been evaluated using optical and transmission electron microscopy (TEM). It has been found that the
Ratchev, Petar   +3 more
core   +1 more source

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

Microsphere‐Templated Conductive Syntactic Foams for Recyclable and Additively Manufactured Soft Electronics

open access: yesAdvanced Healthcare Materials, EarlyView.
This work introduces a microsphere‐templated strategy to fabricate reprocessable PEDOT:PSS syntactic foams with tunable porosity, stable conductivity, and 3D printability. In situ PEDOT:PSS coatings create a conductive network that maintains electrical performance at high void fractions.
Gayaneh Petrossian   +7 more
wiley   +1 more source

Influence of surface temperature fluctuations on the hot ductility of microalloyed steel slabs during continuous casting

open access: yes工程科学学报, 2015
Temperature fluctuations exist on the slab surface due to unstable heat flux during repeated contact and departure between the hot slab surface and the relatively cold supporting rollers in the secondary cooling zone. Considering thermal oscillations,hot
DU Chen-wei   +6 more
doaj   +1 more source

Effect of mold temperature and casting dimension on microstructure and tensile properties of counter-gravity casting Ti-6Al-4V alloys [PDF]

open access: yesChina Foundry, 2016
The cast Ti-6Al-4V alloy bars with different section sizes were fabricated by investment casting at counter-gravity condition with the mold temperatures of 300 °C and 650 °C, respectively.
Shou-yin Zhang   +2 more
doaj   +1 more source

Evaluation on static mechanical stability of wrought Inconel 718 superalloy; effect of grain configuration and δ precipitation

open access: yesJournal of Materials Research and Technology, 2023
Wrought nickel alloys are widely applied in hot static components for aero-engines, acquisition for the underlying mechanism of microstructural evolutions controlling mechanical degradation during elevated-temperature exposure is fundamentally vital to ...
Hongjun Zhang   +4 more
doaj   +1 more source

Flexible Ag2Se‐Based Thermoelectrics: Fundamentals, Processing, and Device Applications

open access: yesAdvanced Materials, EarlyView.
Ag2Se‐based thermoelectrics are reviewed from fundamental transport mechanisms to flexible device integration. Crystal structure, defect chemistry, and band features are correlated with performance optimization strategies and scalable fabrication routes.
Jie Qin   +5 more
wiley   +1 more source

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