-
1541
Effect of deep cryogenic treatment on the microstructure and mechanical properties of AlCrFe2Ni2 High-entropy alloy
Published 2020-01-01“…The alloy displayed the best performance with a holding time of 4 h, and the Vickers hardness (338 HV) was 11.6% higher than the as-cast alloy, and the yield strength (920 MPa) was 22.7% higher. …”
Get full text
Article -
1542
Effect of Marble Dust on the Mechanical, Morphological, and Wear Performance of Basalt Fibre-Reinforced Epoxy Composites for Structural Applications
Published 2022-03-01“…The tensile, flexural, and impact energy were enhanced up to 7.5 wt. % of WMP, and the Vickers hardness of epoxy enhanced every state of reinforcement of WMP. …”
Get full text
Article -
1543
Evaluation of Enamel Acid Resistance and Whitening Effect of the CAP System
Published 2022-08-01“…The height profiles were observed using a 3D-measuring laser microscope and the hardness was evaluated by Vickers hardness test. The morphological changes in the surface and cross-section of the enamel were observed by scanning electron microscopy. …”
Get full text
Article -
1544
Corrosion Behaviour of Aluminium Alloy 7020-T6 welded Joint in Sea Water at Different Variables
Published 2013-09-01“…The joints were tested by X-ray radiography and faulty pieces were excluded.and the indefectible joints were subjected to stress relief heat treatment including heating the joint to evaluating temperature 100 C⁰for one hour and air cooling.Optical microscopy with camera was used to observe the welded joint microstructure.Micro hardness test were carried out using Vickers instrument to measure the hardness of the welded joint. …”
Get full text
Article -
1545
Morphological, mechanical and antibacterial properties of Ti–Cu–N thin films deposited by sputtering DC
Published 2023-06-01“…The highest hardness value of a Ti–Cu–N layer was 212.032 Vickers Hardness Number (VHN), which was an improvement of 36.63% on the raw material (155.18 VHN). …”
Get full text
Article -
1546
Friction Reduction by Laser Irradiation for a Friction System Using Bearing Steel and Aluminum Alloy in Engine Oil
Published 2022-12-01“…For mode-II, the ZnDTP-derived phosphate film formed on the disk suppressed aluminum adhesion, and a sulfur-containing tribofilm formed on the ball. Micro-Vickers tests and X-ray diffraction showed that an amorphous/nanocrystalline structure formed in the unirradiated area owing to heat diffusion under high-energy-density laser irradiation (>Ec). …”
Get full text
Article -
1547
Characterization of anodizing process on aluminum Al3003 and Al6063 using the multifactorial analysis and robust design techniques.
Published 2013-03-01“…The measurement of micro-hardness was made with an indentador Vickers loaded with 400g; the measurement of roughness Ra was made with a surface roughness tester MITUTOYO SJ-201P; and electronic microscopy was used to observe the porosity and the thickness of the oxide layer. …”
Get full text
Article -
1548
Effect of Alloying Elements (Mo and Al) on Biomaterials Ti-Ta Shape Memory Alloys
Published 2014-05-01“…Titanium-Tantalum shape memory materials have widespread potential in biomedical applications In this research the alloy of (Ti-Ta) has been prepared by powder metallurgy technique use fixed percentage of Ta (30 at%), then the alloying elements (Mo and Al) has been added in different compositions (1 at%, 2 at% and 3%) to the master alloy (70% Ti -30% Ta) in order to improve corrosion resistance and mechanical properties . examination were done by using XRD, SEM technique, DSC, Vickers hardness, the porosity percentage and corrosion rate in different solutions (artificial saliva, Ringer solution and blood plasma).The XRD and microstructure results show that all samples with and without additives consist of two phases (β-phase) and (α-phase) at room temperature and the addition of Mo and Al in these percentages does not have effect on present phases. he transformation temperature decreases with the increasing in Mo percentage while this temperature increase with the increasing in Al percentage. …”
Get full text
Article -
1549
Micro-Alloying and Surface Texturing of Ti-6Al-4V Alloy by Embedding Nanoparticles Using Gas Tungsten Arc Welding
Published 2020-03-01“…The treated surface layer was studied using X-ray diffraction, scanning electron microscopy, and Vicker’s micro-hardness testing. The results of the study show that the surface of the Ti-6Al-4V alloy can be successfully hardened by embedding nanosized Al<sub>2</sub>O<sub>3</sub> particles into the surface using gas tungsten arc welding to melt the surface of the material. …”
Get full text
Article -
1550
Influence of Heat Treatment on the Corrosion Resistance in Shape Memory Stainless Steel Based on FeMnSiCrNiCo
Published 2023-05-01“…Scanning electron microscopy (SEM-EDS) and a Vickers microhardness test were used to characterize the microstructure. …”
Get full text
Article -
1551
Optical and Mechanical Properties of Highly Translucent Dental Zirconia
Published 2020-07-01“…Mechanical properties were appraised with three-point bending strength, indentation fracture toughness, and Vickers hardness. Data were analyzed using a one-way ANOVA, followed by Tukey’s multiple comparison test (α = 0.05). …”
Get full text
Article -
1552
Evaluation of the Linear Dimensional Changes and Hardness of Gypsum Product / Stone Type Ⅳ after Adding Silica Nanoparticles
Published 2020-09-01“…The linear dimensional changes were measured using a digital caliper, while the hardness was tested with Vickers' hardness test. The data were analyzed with t-test (two-sample assuming unequal variances) and p-value. …”
Get full text
Article -
1553
Study of solid loading of feedstock using trimodal iron powders for extrusion based additive manufacturing
Published 2023-03-01“….% gave the highest sintered density of 92.32%, the highest Vickers hardness of 80.67 HV, with the smallest dimensional variation in shrinkage, proposing 70 vol.% of trimodal feedstock to be the suitable powder content for AM. …”
Get full text
Article -
1554
Incorporation of Chitosan Nanoparticles into a Cold-Cure Orthodontic Acrylic Resin: Effects on Mechanical Properties
Published 2021-01-01“…The flexural strength, compressive strength, Vickers microhardness, and impact strength measurements were performed for all five groups. …”
Get full text
Article -
1555
READER, I MARRIED HIM, OR THE MECHANISM OF ATTENTIONAL CONVERGENCE IN THE ENGLISH-LANGUAGE NARRATIVE
Published 2020-05-01“…Hadley, S. Hill, S. Vickers, to name just a few of the 21 writers, who contributed to the collection entitled “Reader, I Married Him” inspired by “Jane Eyre” and Charlotte Bronte’s bicentenary. …”
Get full text
Article -
1556
Nonlinear optical behaviour of bis (cytosinium) tartarate monohydrate single crystal
Published 2022-12-01“…The mechanical strength of the grown crystal was estimated using Vickers microhardness test. The thermal stability of the grown crystal was investigated by TGA-DTA studies. …”
Get full text
Article -
1557
Microstructural and Mechanical Characterization of W-CuCrZr Joints Brazed with Cu-Ti Filler Alloy
Published 2021-01-01“…Mechanical properties were evaluated by means of Vickers microhardness and mechanical tests by applying pure shear loads. …”
Get full text
Article -
1558
Phase analysis and microstructure study of sintered Ni-Cr composites containing MoS2, Ag and CaF2 additives as solid lubricants
Published 2020-06-01“…The microstructures and phase studies of the Ni-Cr based composites were conducted using Scanning Electron Microscope (SEM) and X-Ray Diffraction Analysis (XRD) while the hardness of the composites was measured by the Vickers Micro Hardness Tester. The results revealed that as the sintering temperature was increased, the sintered density, relative density and hardness also increased while the porosity was reduced. …”
Get full text
Article -
1559
Characterization of oxide layers formed on 10CrMo9-10 steel operated for a long time in the power industry
Published 2021-06-01“…In addition, the nature of cracks in the oxide layers caused by pressing a Vickers indenter was determined. The results of these examinations have shown a high degradation of steel on the flue-gas inflow side and identified the main corrosion products and mechanisms.…”
Get full text
Article -
1560
Aging Behavior of Aluminum Alloy 6082 Subjected to Friction Stir Processing
Published 2018-08-01“…Increasing aging temperature and/or time resulted in the formation of recrystallization texture of a Cube orientation. In addition, Vickers microhardness was evaluated for the FSP sample, indicating a softening in the SZ due to the dissolution of the hardening precipitates. …”
Get full text
Article