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381
Influence of Printing Strategies on the Microstructure and Mechanical Properties of Additively Manufactured Alloy 625 Using Directed Energy Deposition (DED-LB-p)
Published 2024-09-01“…The grain orientation and size are analyzed by EBSD. A very low porosity of less than 0.4% is found in all the printed samples. …”
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382
Effect of Heat Treatment on the Microstructure, Phase Distribution, and Mechanical Properties of AlCoCuFeMnNi High Entropy Alloy
Published 2017-01-01“…The as-cast alloy was heat treated at 900°C for 8 hours to investigate the effect of heat treatment on the structure and properties. Microstructural and mechanical properties of the alloy were analyzed together with the detailed phase analysis of the samples. …”
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383
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384
Non-Destructive Investigation of Microstructural Transformations and Mechanical Hardening by Electromagnetic Techniques in Cold-Rolled Ferritic-Pearlitic Steel Wire of Flexible Pip...
Published 2025-05-01“…Offshore oil and gas exploration in deep areas raises the need to develop equipment monitoring techniques to detect possible defects and prevent catastrophic failures. This work sought to analyze the feasibility of using non-destructive electromagnetic techniques - Magnetic Barkhausen Noise (MBN), Magnetic Hysteresis and Electrical Resistivity - in the identification of predominant stresses, microstructural transformations and mechanical behavior of a steel used in the manufacture of flexible Risers. …”
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385
Effect of Pulse Energy on the Microstructure and Mechanical Properties of the Non-Optical Contact Femtosecond Laser Welding of Quartz Glass and the TC4 Alloy
Published 2025-02-01“…Thus, a femtosecond laser was employed to perform the direct joining of these materials under non-optical contact conditions, with the aid of a well-designed clamp and optimized process, and the effect of pulse energy on the microstructure and mechanical properties was analyzed. …”
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386
Effects of Y2O3 on microstructure and mechanical properties of AlCoCrFeNi high-entropy alloy coatings
Published 2022-12-01“…AlCoCrFeNi high entropy alloy (HEA) coatings add by Y2O3 in the different mass fraction were prepared on Q235 steel matrix by laser cladding technology in this study, and the microstructure, hardness, and wear resistance of the AlCoCrFeNi high entropy alloy coatings were analyzed by X-ray diffractometer, scanning electron microscope, microhardness tester, and friction and wear tester. …”
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387
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. …”
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388
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.…”
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389
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. …”
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390
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391
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. …”
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392
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. …”
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393
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394
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. …”
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395
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). …”
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396
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. …”
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397
Alkali-Activated Slag–Fly Ash–Desert Sand Mortar for Building Applications: Flowability, Mechanical Properties, Sulfate Resistance, and Microstructural Analysis
Published 2025-06-01“…This study investigates the performance of alkali-activated mortar incorporating slag, fly ash, and desert sand, with a focus on flowability, mechanical properties, sulfate resistance, and microstructural characteristics. A four-factor, three-level orthogonal experimental design was used to analyze the effects of the fly ash substitution rate, alkali content (Na<sub>2</sub>O/b), activator modulus, and desert sand replacement rate for natural sand. …”
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398
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. …”
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399
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). …”
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400
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. …”
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