-
381
Microstructure and mechanical properties of stainless steel 316L-Inconel 625 bimetallic structure fabricated by laser wire direct energy deposition
Published 2024-11-01“…This study explores the laser wire direct energy deposition (LW-DED) process to manufacture bimetallic SS316L and Inconel 625 alloy. The microstructure and mechanical properties of as-printed SS316L, Inconel 625, and the bimetal were analyzed. …”
Get full text
Article -
382
Effect of Y<sub>2</sub>O<sub>3</sub> on the Microstructure and Properties of Selective Laser Melting TC4 Alloys
Published 2025-06-01“…The microstructure of TC4 titanium alloy prepared by selective laser melting(SLM) technology is prone to the phenomenon of coarse grains and poor wear resistance.To address this issue, an appropriate amount of Y2O3 was added during the SLM preparation process of TC4 titanium alloy, and its impact on the microstructure and properties of the resulting alloy was analyzed.Results showed that the appropriate addition of Y2O3 could significantly refine the microstructure of the TC4 titanium alloy, leading to improved mechanical properties and enhanced wear resistance.Compared to samples without Y2O3, when the Y2O3 content was 0.10%, the yield strength increased from 700 MPa to 1 086 MPa (a 55%increase), the tensile strength rose from 819 MPa to 1 255 MPa (a 50%increase), and the elongation decreased from 8.04%to 7.00%(a 12.9% reduction), which resulted in a good balance between strength and ductility.When the Y2 O3 content was increased to 0.15%, the microhardness of the TC4 titanium alloy increased from 308.8 HV to 377.1 HV (a 22%increase), indicating a significant improvement in wear resistance.In general,this study provided valuable theoretical insights and robust empirical evidence to support the enhancement of the mechanical properties of TC4 titanium alloys fabricated via SLM.…”
Get full text
Article -
383
Effect of discharge parameters on surface integrity and microstructure in electro discharge layering of Ni–Cr composite coating on AA2024 aluminium alloy
Published 2025-06-01“…During the EDL process, various parameters such as discharge current (I) − 3 A, 5 A, 7 A; pulse-on time (Ton) − 25 µs, 50 µs, 75 µs; and pulse-off time (Toff) − 4 µs, 6 µs, 8 µs, were regulated to improve the deposition rate (DR) and surface roughness (SR). The microstructure and elemental composition of the Ni–Cr coating were analyzed using a scanning electron microscope (SEM) and energy-dispersive spectroscopy (EDS), respectively. …”
Get full text
Article -
384
-
385
Effect of pulse frequency on the microstructure and properties of laser cladding layer of AlCoCrFeNiMo high entropy alloy
Published 2024-11-01“…The cladding layer of high entropy alloy (HEA), specifically AlCoCrFeNiMo, was fabricated using both continuous wave (CW) and pulse wave (PW) laser techniques, with pulse frequencies set at 0.5 Hz, 5 Hz, 50 Hz, 500 Hz, and 5000 Hz. The microstructure of the cladding layer was analyzed using X-ray diffraction, ultra-depth-of-field metallographic microscopy, and scanning electron microscopy. …”
Get full text
Article -
386
Microstructural changes in the caudate nucleus and hippocampus and their association with cognitive function in cerebral small vessel disease: A quantitative susceptibility mapping...
Published 2025-08-01“…Background: Cerebral small vessel disease (CSVD) is associated with microstructural changes in subcortical gray matter linked to cognitive function. …”
Get full text
Article -
387
-
388
Impact of nano-TiO2 on white Portland cement mortars: a combined XRD coupled rietveld, crystallographic and microstructural analysis
Published 2024-12-01“…Scanning electron microscopy (SEM) and VESTA were employed to analyze the microstructure morphology of the hydration products and the crystal structure parameters of the NT-modified white Portland cement mortar. …”
Get full text
Article -
389
Study of the Effect of Regulating Alloying Elements and Optimizing Heat Treatment Processes on the Microstructure Properties of 20MnCr5 Steel Gears
Published 2025-05-01“…With numerical simulation combined with experimental verification, this paper establishes a simulation model for the carburizing process of 20MnCr5 steel FZG gear, analyzing the microstructure and retained austenite volume of the gear surface, after carburizing and quenching, by a scanning electronic microscope (SEM) and X-ray diffraction (XRD). …”
Get full text
Article -
390
Evolution Law of Microstructure and Properties during Hot-rolling Process of Ultra-high-strength 92Si Wire Rod for Bridge Cables
Published 2025-05-01“…According to the evolution law of microstructure and properties during the entire hot rolling process of ultra-high strength 92Si wire rod, methods such as mechanical property testing and microstructure characterization were used to analyze the continuous casting billet, samples before intermediate rolling, samples before finishing rolling, and finished wire rod during the hot rolling process. …”
Get full text
Article -
391
The microstructure and corrosion characteristic of Al-10 wt%RE (Re= Ce, Nd, La, Y) binary aluminum alloys in natural seawater
Published 2024-11-01“…This study presented a thorough investigation into the microstructure, precipitated phases, and corrosion resistance of Al-10 wt%Ce, Al-10 wt%Nd, Al-10 wt%La, and Al-10 wt%Y binary alloys when exposed to natural seawater. …”
Get full text
Article -
392
Synergistic Effects of Thermal Cycles and Residual Stress on Microstructural Evolution and Mechanical Properties in Monel 400 and AISI 316L Weld Joints
Published 2025-04-01“…Infrared thermography (IRT) was employed to record thermal cycles, while X-ray diffraction (XRD) was used to analyze the residual stresses post-welding. Mechanical properties were assessed through tensile and microhardness tests, and microstructural evolution was examined using energy-dispersive spectroscopy (EDS) and scanning electron microscopy (SEM). …”
Get full text
Article -
393
Prediction of the main degradation mechanisms in a hot forging steel die: Optical scanning, simulation, microstructural evolution, and neural network modeling
Published 2025-07-01“…The experimental data gathered from optical scanning and microstructure analysis show that the three regions of the die surface are subject to major failure mechanisms. …”
Get full text
Article -
394
Effects of PWHT on the microstructure, corrosion, tribology, and mechanical properties of mild steel welds under different joining positions: Experimental and Numerical Study
Published 2025-09-01“…The effects of post-weld heat treatment (PWHT) on the microstructure, mechanical properties, corrosion resistance, and tribological behavior of the welded samples were thoroughly examined. …”
Get full text
Article -
395
Effect of duplex and austenite stainless steel fillers on mechanical, microstructural, and corrosion characteristics of dissimilar welds using Cold Metal Transfer welding
Published 2025-06-01“…This research analyzes the mechanical, metallography, and corrosion characteristics of dissimilar (SS316L and SS439 stainless steels) weld joints developed with Cold Metal Transfer (CMT) technique with E309L and E2209 filler wires. …”
Get full text
Article -
396
Dissimilar TLP bonding of X-45/Hastelloy X superalloys using BNi-2 filler metal: Microstructural evolution and mechanical behaviors
Published 2025-12-01“…Increased diffusion of elements on the Hastelloy X side resulted in denser and more widespread precipitates than on the opposite side of the joint, although this region produced harder precipitates. To analyze the connection between microstructure and mechanical properties, a combination of microhardness and shear testing was utilized. …”
Get full text
Article -
397
White Matter Microstructure Alteration in Patients with Drug-Induced Parkinsonism: A Diffusion Tensor Imaging Study with Tract-Based Spatial Statistics
Published 2024-11-01“…Introduction: This research aimed to investigate the pathophysiological mechanism of how drug-induced parkinsonism (DIP) affects the integrity of the white matter (WM) fiber microstructure as measured by magnetic resonance diffusion tensor image (DTI) fractional anisotropy (FA) and mean diffusivity (MD). …”
Get full text
Article -
398
-
399
Electrochemical Behavior of the Ti-12Mo-25Nb Alloy Compared to the Alloys of the Ti-xMo-30Nb System (x = 10 and 12%wt.) in Ringer’s Solution
Published 2025-07-01“…The alloys were produced by arc melting with a non-consumable tungsten electrode in an argon atmosphere, followed by homogenization at 950°C for 1 hour and water quenching. The microstructure was analyzed using X-ray diffraction and optical microscopy, while mechanical properties were evaluated by Vickers microhardness and Young’s modulus via the impulse excitation technique. …”
Get full text
Article -
400
Investigation on the Bending Mechanism of Single-Crystal Copper Under High Bending Rates via Molecular Dynamics
Published 2025-03-01“…The findings reveal a significant correlation between the bending rate and the hinges’ plastic deformation and microstructural evolution, indicating the presence of a critical bending rate. …”
Get full text
Article