-
2541
Phase Evaluation, Mechanical Properties and Thermal Behavior of Hot-Pressed LC-YSZ Composites for TBC Applications
Published 2022-04-01“…YSZ doping improved the Vickers hardness of the LC-YSZ composites; the highest hardness, with value of 12 ± 0.62 GPa, was achieved for the composite containing 70 wt.% of YSZ. …”
Get full text
Article -
2542
Assessment of Micro-Hardness, Degree of Conversion, and Flexural Strength for Single-Shade Universal Resin Composites
Published 2022-11-01“…Charisma Diamond One/DO, Admira Fusion x-tra/AFX, Omnichroma/OC, OptiShade/OS, Essentia Universal/EU, Zenchroma/ZC, Vittra APS Unique/VU were used in a three-point bending test to determine flexural strength (F<sub>S</sub>) and elastic modulus (E<sub>M</sub>); Vickers micro-hardness (VHN) and hardness-ratio (HR) were performed with a micro-hardness tester from top/bottom after 24-h/15-days of storage in distilled water at 37 °C (±1 °C). …”
Get full text
Article -
2543
Failure Analysis of a Chromium Plating Layer on a Piston Rod Surface and the Study of Ni-Based Composite Coating with Nb Addition by Laser Cladding
Published 2022-07-01“…The failure of a chromium plating layer on the surface of a piston rod was analyzed, and an Ni-based alloy mixed with a niobium (Nb) composite coating was investigated by means of stereomicroscopy, metallographic microscopy, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Vickers hardness testing, and wear testing. The results show that penetrating cracks were present in the chromium layer. …”
Get full text
Article -
2544
Microstructure, Phase Formation and Heat-Treating of Novel Cast Al-Mg-Zn-Cu-Si Lightweight Complex Concentrated Aluminum Based Alloy
Published 2022-04-01“…In terms of mechanical properties, the developed alloy exhibited a high hardness value of 249 Vickers and compressive strength of 588 MPa. The present work provides a valuable insight for researchers, who aim to design and produce industry-like Aluminum based complex concentrated alloys (CCAs).…”
Get full text
Article -
2545
A SiO<sub>2</sub>/pHEMA-Based Polymer-Infiltrated Ceramic Network Composite for Dental Restorative Materials
Published 2022-01-01“…The flexural strength was 112.5 ± 18.7 MPa, the flexural modulus was 13.6 ± 3.4 GPa, and the Vickers hardness was 168.2 ± 16.1, which are similar values to human teeth. …”
Get full text
Article -
2546
High Velocity Oxygen Liquid-Fuel (HVOLF) Spraying of WC-Based Coatings for Transport Industrial Applications
Published 2020-12-01“…Porosity was determined by image analysis. Vickers impression was performed on cross-sections of the coatings, in order to determine their indentation fracture toughness. …”
Get full text
Article -
2547
Study on the microstructure evolution mechanism of copper single phase alloys under deep undercooling conditions
Published 2023-07-01“…TEM tests were conducted on a Cu60Ni38Co2 alloy with a maximum undercooling of 259 K, and it was found that there are high-density dislocation networks in some areas within them. Finally, the Vickers hardness of the above alloys was measured and recorded using a microhardness tester (HVS-1000Z), and the evolution between microhardness and undercooling, as well as the changes in microhardness under critical undercooling, were analyzed. …”
Get full text
Article -
2548
Strength mechanisms and tunability in Al-Ce-Mg ternary alloys enabled by additive manufacturing
Published 2023-07-01“…A combination of (i) Hall-Petch strengthening, based on the FCC-matrix-phase cell size; (ii) particle strengthening, based on Al11Ce3 volume fraction and size; and (iii) solid-solution strengthening, based on Mg composition of the matrix phase, were used to account for the measured strengths. Vickers hardness is shown to correlate well with ultimate tensile strength in these alloys, highlighting the value of surface-based techniques for rapid screening.…”
Get full text
Article -
2549
Effect of 3D Printer Type and Use of Protection Gas during Post-Curing on Some Physical Properties of Soft Occlusal Splint Material
Published 2022-10-01“…The evaluated properties were flexural strength, flexural modulus, Vickers hardness (VHN), fracture toughness, degree of double bond conversion (DC%), water sorption, water solubility, and 3D microlayer structure. …”
Get full text
Article -
2550
Microstructures and Tensile Properties of 9Cr-F/M Steel at Elevated Temperatures
Published 2022-02-01“…Tensile properties and microstructure changes under different stress states of tempered 9Cr-F/M steel were characterized using a transmission electron microscope (TEM), electron backscatter diffraction (EBSD), scanning electron microscopy (SEM), Vickers hardness tester, and tensile tester. This tempered steel has a typical lath martensite structure with only a few polygonal ferrites embedded, and M<sub>23</sub>C<sub>6</sub> and MX phases nucleated on the lath boundaries or within the sub-grains. …”
Get full text
Article -
2551
Experimental Investigation of the Friction Stir Weldability of AA8006 with Zirconia Particle Reinforcement and Optimized Process Parameters
Published 2021-05-01“…The friction stir-processed samples were investigated regarding their mechanical properties such as tensile strength and Vickers microhardness. The welded samples were included in the corrosion testing to ensure that no foreign corrosive elements were included during the welding. …”
Get full text
Article -
2552
Bulks of Al-B-C obtained by reactively spark plasma sintering and impact properties by Split Hopkinson Pressure Bar
Published 2021“…Namely, the highest values of the Vickers hardness (32.4 GPa), dynamic strength (1323 MPa), strain and toughness were determined for the samples with R = 1.3, i.e., for the samples with a high amount of AlB24C4. …”
Get full text
Journal Article -
2553
Geometric influence of the laser-based powder bed fusion process in Ti6AL4V and AlSi10Mg
Published 2021“…The samples are systematically evaluated by the optical microscope and the Vickers hardness tester. Microstructural characterisation of these samples is further evaluated via scanning electron microscopy. …”
Get full text
Journal Article -
2554
Surface enhancement of metallic parts fabricated by selective laser melting
Published 2024“…My analysis comprises both the mechanical and microstructural areas and uses techniques such as Vicker’s hardness and multiple microscopy techniques. …”
Get full text
Final Year Project (FYP) -
2555
Study on the anisotropy and heterogeneity of microstructure and mechanical properties in additive manufactured Ti-6Al-4V parts by selective electron beam melting
Published 2018“…OM, SEM and TEM) and mechanical testing (e.g. Tensile test and Vickers microhardness). Lastly, the columnar grains within the as-built SEBM Ti-6Al-4V were studied as well. …”
Get full text
Thesis -
2556
PENGARUH KUAT ARUS PADA PELAPISAN NICKEL, HARD CHROMIUM DAN NICKEL- HARD CHROMIUM PLATING TERHADAP SIFAT FISIS DAN MEKANIS PERMUKAAN BAJA AISI 410
Published 2012“…The thick of the layer can be known by optic microscope, the hardness of the surface by the Micro Vickers experiment on the mass of 25 gr, the corrosion rate is found by three cells electrode potensio on the solution of 0,9% NaCl, and the wear rate can be known by Ogoshi High Speed Universal Wear Testing Machine. …”
Thesis -
2557
PENGARUH VARIASI WAKTU PELAPISAN TiN HASIL DEPOSISI DC REACTIVE MAGNETRON SPUTTERING TERHADAP KEKERASAN, LAJU KOROSI, KEAUSAN ABRASI DAN KEKASARAN BAJA TAHAN KARAT MARTENSITIK AISI...
Published 2011“…The hardness test used a micro-Vickers hardness tester, the corrosion test used a galvanostat PGS 201T with testing media 0,9% NaCl, the abrasive wear test used an ogoshi high speed universal wear testing machine OAT-U and the roughness test used a surface roughness instrument SE 1700. …”
Thesis -
2558
PENGARUH DEPOSISI LAPISAN TIPIS TiN PADA KEKERASAN DAN UMUR PAHAT BUBUT HSS
Published 2003“…Selanjutnya diuji kekerasan dengan mikro Vickers menggunakan beban 10 gf. Optimalisasi kondisi operasi dengan hasil kekerasan maksimum digunakan untuk proses sputtering pada 54 sisi potong pahat bubut dari bahan HSS dengan sudut tatal (g) = 10° dan sudut jalan bebas (a) = 8°. …”
Article -
2559
PENGARUH IN-OFFICE BLEACHING SISTEM AKTIVASI HEAT LIGHT DAN KIMIAWI TERHADAP PERUBAHAN KEKERASAN RESIN KOMPOSIT NANOFIL DAN NANOKERAMIK
Published 2012“…The surface microhardness of each sample was tested before and after performing in office bleaching using microhardness tester (Vickers Hardness Tester) . Data obtained were the value of microhardness after in office bleaching subtracted by the value of microhardness before in office bleaching. …”
Thesis -
2560
Multi-technique analysis of solute segregation and clustering in low-alloy steels
Published 2023“…These results were complemented by techniques such as EBSD, TKD, and Vickers hardness testing.</p> <p>Novel methods were developed and evolved during this study. …”
Thesis