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1421
Effect of Microstructure and Mechanical Properties of Al5083 Alloy Processed by ECAP at Room Temperature and High Temperature
Published 2021-06-01“…Tensile studies were also done. Both hardness (Vickers) and tensile strength rises as the number of passes increases; however, the ductility or the percentage of elongation increases. …”
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1422
Mechanical and electrical properties of ternary Ag-Bi-Ga system at 250 °C
Published 2017-09-01“…The hardness of alloys from three vertical sections (Bi-AgGa, Ag-BiGa, and Ga-AgBi) was determined using Brinell hardness test while the hardness of the individual identified phases was determined using Vickers microhardness test. Additional electrical conductivity measurements were carried out on the same alloy samples. …”
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1423
The Influence of the Modification of Carbon Nanotubes on the Properties of Copper Matrix Sintered Materials
Published 2024-03-01“…The tests were carried out using scanning electron microscopy (SEM), transmission electron microscopy (TEM), Vickers hardness tests, static compression tests, and wear tests using the pin-on-disc method. …”
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1424
Metallurgical and mechanical investigation on FSSWed dissimilar aluminum alloy
Published 2023-06-01“…The physical properties were investigated by Vickers microhardness survey and the specimen strength evaluated by tensile tests. …”
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1425
Microstructural evolution and hardening phenomenon caused by aging of AlSi10Mg alloy by laser powder bed fusion
Published 2024-03-01“…Microstructures and age-hardening phenomena of directly aged (artificial aged) AlSi10Mg alloys fabricated by laser powder bed fusion (LPBF) were characterized using scanning transmission electron microscopy, atom probe tomography, and Vickers hardness testing. The microstructure derived from overlapping melt pools has a full cellular structure consisting of eutectic Si walls surrounding α-Al cells. …”
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1426
ANALISIS PERBANDINGAN SIFAT FISIS DAN MEKANIS BANTALAN PELURU BARU, TELAH DIPAKAI DAN RUSAK UNTUK KENDARAAN BERMOTOR RODA DUA
Published 2014-06-01“…Pada penelitian ini dilakukan penelitian terhadap sample bearing dengan membandingkan bearing yang belum terpakai dengan bearing yang sudah terpakai pada sepeda motor untuk mengetahui komposisi kimia dengan menggunakan alat spektrometer, pengujian metalografi dan pengujian kekerasan dengan menggunakan metode Vickers. Dari penelitian yang dilakukan bahwa bearing tersebut adalah high carbon steel atau baja karbon tinggi rata-rata tertinggi dimiliki oleh bearing baru yaitu untuk bagian outer ring sebesar 766,12 HV, ball bearing sebesar 854,276 HV dan inner ring sebesar 774,592 HV. …”
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1427
Soudage hybride Laser-MAG d'un acier Hardox® Hybrid Laser Arc Welding of a Hardox® steel
Published 2013-11-01“…Un large panel de techniques de caractérisation a été employé (mesures thermiques, radiographie X, duretés Vickers, macrographie…). L'objectif étant de déterminer l'influence des paramètres du procédé sur la qualité de la soudure et d'étendre notre compréhension des phénomènes se déroulant lors de ce type de soudage. …”
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1428
Production of tib2 coatings on graphite substrates by electrophoretic deposition in NaF-AlF3 melt
Published 2023-03-01“…In addition, the average value of hardness of the TiB2 coating was determined as 3585 ± 139 HV0.1 (36.6 ± 1.4GPa) measured by a Vickers micro-hardness tester.…”
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1429
Analisa Kegagalan Secondary Superheater Tube Pada PLTU Batubara Kapasitas 600 MW
Published 2023-03-01“…Beberapa investigasi yang dilakukan terdiri dari inspeksi visual, kekerasan vickers, analisis struktur mikro, uji XRD. Dapat disimpulkan kegagalan terjadi karena terganggunya aliran steam akibat serbuk deposit menumpuk di daerah elbow dan bukan karena lapisan oksida yang menempel di dinding dalam pipa. …”
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1430
Novel Ultrahard Extended Hexagonal C<sub>10</sub>, C<sub>14</sub> and C<sub>18</sub> Allotropes with Mixed sp<sup>2</sup>/sp<sup>3</sup> Hybridizations: Crystal Chemistry and Ab In...
Published 2023-01-01“…Regarding mechanical properties, C<sub>10</sub>, C<sub>14</sub>, and C<sub>18</sub> were found ultrahard with Vickers hardness slightly below that of diamond. All of them are dynamically stable, with positive phonon frequencies reaching maxima higher than in diamond due to the stretching modes of C=C=C linear units. …”
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1431
Influence of Zr Content in Ti-40Nb-xZr Alloys on the Microstruture, Elastic Modulus and Microhardness
Published 2023-09-01“…The study aimed to investigate the influence of the proportion of β-stabilizing or betagenic elements on the microstructure and properties of the alloys, including Vickers microhardness and elastic modulus.…”
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1432
Applications of Micro-Indentation Technology to Estimate Fracture Toughness of Shale
Published 2020-09-01“…The results show that Berkovich indenter is more suitable for shale indentation test than Vickers indenter. Fracture toughness of shale indentation is obviously affected by surface roughness and indentation position. …”
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1433
Effect of cooling rate of steel ( 25 Cr Mo4 ) on its hardness and microstructure
Published 2009-08-01“…Those transformations in thestructure was accomplished with increasment of Vickers hardness values from (175) HV with ( 0.1˚C /min ) cooling rate to ( 579 ) HV with water guenching . …”
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1434
Effect of dental varnishes in prevention of enamel demineralization adjacent to orthodontic brackets
Published 2023-01-01“…Areas of demineralization were evaluated by documenting the microhardness along the severed surface using a microhardness tester equipped with a Vickers diamond. Results: The highest surface microhardness was noted with Profluorid Varnish group at 328.48 ± 1.12 in pursuit by Clinpro XT Varnish group at 322.08 ± 0.04 as well as Duraphat Varnish group at 307.42 ± 0.28 with a statistically noteworthy dissimilarity amid the groups. …”
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1435
Effect of whitening toothpaste on titanium and titanium alloy surfaces
Published 2012-12-01“…Surface roughness and Vickers microhardness were evaluated before and after toothbrushing. …”
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1436
Stress-Shot-Peened Leaf Springs Material Analysis through Nano- and Micro-Indentations
Published 2021-08-01“…The effect of the manufacturing process has been captured both by Vickers micro-hardness measurements and nanoindentation. …”
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1437
Evaluation of Chromium Carbide Coatings on AISI 52100 Steel Obtained by Thermo-Reactive Diffusion Technique
Published 2019-01-01“…The chromium carbide coating was characterized by scanning electron microscopy, X-ray diffraction (XRD), Micro-Vickers hardness test and Daimler-Benz Rockwell-C adhesion test. …”
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1438
Additive manufacturing process and microstructure during powder extrusion printing of cemented carbides
Published 2022-05-01“…In combination with vacuum sintering at 1450 ℃ for 60 min, high performance of cemented carbide sample with the shrinkage rate of 17.8%, uniform distribution of WC grain size, and Vickers hardness of 1410HV30 is successfully fabricated. …”
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1439
Study on Tooth Interior Fatigue Fracture Failure of Wind Turbine Gears
Published 2020-11-01“…The hardness gradient of the hardened layer is measured by Vickers hardness tests. Based upon the stress field and material properties, a fatigue parameter analysis is presented to characterize the risk of TIFF by using the Dang Van multiaxial fatigue criterion. …”
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1440
Study of the Effect of Quenching and Tempering Modes on the Strength Level of Alloyed Structural Steels Used to Produce Fasteners
Published 2022-09-01“…Tensile strength, yield strength, relative elongation, reduction in area, and Vickers microhardness were measured. An analysis was made of the hardenability and the influence of the holding time during tempering on the mechanical properties of the considered round steel. …”
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