Results 11 to 20 of about 44,667 (253)

Solidification characteristics and as-cast microstructures of a Ru-containing nickel-based single crystal superalloy

open access: yesJournal of Materials Research and Technology, 2021
The solidification characteristics and as-cast microstructures of a Ru-containing nickel-based single crystal superalloy were systematically investigated through thermal analysis, Thermo-Calc simulation, the planar interface solidification experiment ...
Kaili Cao   +7 more
doaj   +1 more source

Microstructure and Mechanical Properties of Diffusion-Bonded CoCrNi-Based Medium-Entropy Alloy to DD5 Single-Crystal Superalloy Joint

open access: yesCrystals, 2021
This study focuses on the diffusion bonding of a CoCrNi-based medium-entropy alloy (MEA) to a DD5 single-crystal superalloy. The microstructure and mechanical properties of the joint diffusion-bonded at variable bonding temperatures were investigated ...
Shiwei Li   +7 more
doaj   +1 more source

Improved Surface Wettability of Water by Applying SiC/Ti6Al4V Coatings on Carbon/Carbon Composites

open access: yesAdvances in Materials Science and Engineering, 2013
SiC/Ti6Al4V coatings were applied on carbon/carbon composites to improve the surface wettability of water. SiC interlayers were preprepared by pack cementation to bond both the carbon/carbon composites and the Ti6Al4V, and then the Ti6Al4V coatings were ...
Lei-Lei Zhang   +7 more
doaj   +1 more source

Observations on Nanoscale Te Precipitates in CdZnTe Crystals Grown by the Traveling Heater Method Using High Resolution Transmission Electron Microscopy

open access: yesCrystals, 2018
Te precipitates in CdZnTe (CZT) crystals grown by the traveling heater method (THM) are investigated using high-resolution transmission electron microscopy (HRTEM).
Boru Zhou   +9 more
doaj   +1 more source

Lattice Strain and Surface Activity of Dislocation‐Distorted AgPd Nanoalloys Under Preoxidation and Catalysis Condition

open access: yesSmall Structures, 2023
Although line defects endow excellent catalytic performance by undercoordinated sites with compressive tensile strain, few studies have systematically unraveled the relationship between dislocation, strain, and electrochemical activity for formate ...
Junpeng Wang   +7 more
doaj   +1 more source

Surface remelting strategy for enhancing forming quality in laser directed energy deposition of Al2O3/GdAlO3/ZrO2 eutectic ceramics: Defect suppression and microstructure evolution

open access: yesJournal of Advanced Ceramics
The intrinsic brittleness of ceramic materials and the complex temperature field used during laser directed energy deposition (LDED) inevitably lead to the formation of surface and internal defects in the fabricated components, which significantly affect
Shengyang Yu   +12 more
doaj   +1 more source

3C-SiC Nanowires In-Situ Modified Carbon/Carbon Composites and Their Effect on Mechanical and Thermal Properties

open access: yesNanomaterials, 2018
An in-situ, catalyst-free method for synthesizing 3C-SiC ceramic nanowires (SiCNWs) inside carbon⁻carbon (C/C) composites was successfully achieved.
Hongjiao Lin   +5 more
doaj   +1 more source

Microstructure Evolution of a High Nb Containing TiAl Alloy with (α2 + γ) Microstructure during Elevated Temperature Deformation

open access: yesMetals, 2018
In order to verify the correctness of the transition of deformation mechanism with the change in deformation parameters and to reveal the types and mechanism of dynamic recrystallization of γ grains during compression deformation, microstructure ...
Yudong Chu   +5 more
doaj   +1 more source

Investigation on the Thermal Deformation Behavior of the Nickel-Based Superalloy Strengthened by γ′ Phase

open access: yesCrystals, 2019
The isothermal compression tests of the nickel-based superalloy Waspaloy were carried out under various temperatures from 1040 to 1120 °C and strain rates from 0.01 to 10 s−1 with the height reduction of 60% and the flow stress curves were obtained.
Haiping Wang   +5 more
doaj   +1 more source

Microstructure on remelting interface of Ni–W heterogeneous seed in preparing Ni-based single crystal superalloys

open access: yesJournal of Materials Research and Technology, 2021
Ni–W heterogeneous seed was used to prepare the Ni-based single crystal superalloys and the microstructure at remelting interface under different conditions was analyzed.
Jiarun Qin   +5 more
doaj   +1 more source

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