Showing 1,541 - 1,560 results of 2,850 for search '"Vickers"', query time: 0.09s Refine Results
  1. 1541

    Effect of deep cryogenic treatment on the microstructure and mechanical properties of AlCrFe2Ni2 High-entropy alloy by Chengze Li, Yingdong Qu, Yufeng Zhang, Qingyao Lv, Hao Qi

    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. …”
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    Article
  2. 1542

    Effect of Marble Dust on the Mechanical, Morphological, and Wear Performance of Basalt Fibre-Reinforced Epoxy Composites for Structural Applications by Abhinay Singh Rajawat, Sanjeev Singh, Brijesh Gangil, Lalit Ranakoti, Shubham Sharma, Muhammad Rizal Muhammad Asyraf, Muhammad Rizal Razman

    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. …”
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  3. 1543

    Evaluation of Enamel Acid Resistance and Whitening Effect of the CAP System by Naoko Miki, Yasuo Miake, Shinji Shimoda, Hiroyuki Mishima

    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. …”
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  4. 1544

    Corrosion Behaviour of Aluminium Alloy 7020-T6 welded Joint in Sea Water at Different Variables by Huda Mohammed Abdulaziz

    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. …”
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    Article
  5. 1545

    Morphological, mechanical and antibacterial properties of Ti–Cu–N thin films deposited by sputtering DC by Ihwanul Aziz, Emy Mulyani, Yusril Yusuf

    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). …”
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    Article
  6. 1546

    Friction Reduction by Laser Irradiation for a Friction System Using Bearing Steel and Aluminum Alloy in Engine Oil by Kento Ihara, Koshi Adachi

    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). …”
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  7. 1547

    Characterization of anodizing process on aluminum Al3003 and Al6063 using the multifactorial analysis and robust design techniques. by Leonardo Eladio Vergara Guillén, Luis Manuel Nerey Carvajal, Víctor Manuel Guédez Torcates

    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. …”
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    Article
  8. 1548

    Effect of Alloying Elements (Mo and Al) on Biomaterials Ti-Ta Shape Memory Alloys by Fatima J. Al-Hassani, Emad S. Al-Hassani, Sahib M. Al-Saffar

    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. …”
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  9. 1549

    Micro-Alloying and Surface Texturing of Ti-6Al-4V Alloy by Embedding Nanoparticles Using Gas Tungsten Arc Welding by Kavian Omar Cooke, Muhammad Ali Shar, Suleman Hussain

    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. …”
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  10. 1550

    Influence of Heat Treatment on the Corrosion Resistance in Shape Memory Stainless Steel Based on FeMnSiCrNiCo by Sofia Salles Lantyer Marques, Rita de Cássia Mendonça Sales-Contini, Jorge Otubo, Heide Heloise Bernardi

    Published 2023-05-01
    “…Scanning electron microscopy (SEM-EDS) and a Vickers microhardness test were used to characterize the microstructure. …”
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    Article
  11. 1551

    Optical and Mechanical Properties of Highly Translucent Dental Zirconia by Hee-Kyung Kim

    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). …”
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  12. 1552

    Evaluation of the Linear Dimensional Changes and Hardness of Gypsum Product / Stone Type Ⅳ after Adding Silica Nanoparticles by Ola Mohammed Aljubori, Ali Mohammad Ali Aljafery, Raja'a Mahdi Al-Mussawi

    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. …”
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  13. 1553

    Study of solid loading of feedstock using trimodal iron powders for extrusion based additive manufacturing by Heungseok Oh, Taehyeob Im, Jungsuk Pyo, Jai-sung Lee, Caroline Sunyong Lee

    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. …”
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  14. 1554

    Incorporation of Chitosan Nanoparticles into a Cold-Cure Orthodontic Acrylic Resin: Effects on Mechanical Properties by Mostafa Shahabi, Sorour Movahedi Fazel, Abdolrasoul Rangrazi

    Published 2021-01-01
    “…The flexural strength, compressive strength, Vickers microhardness, and impact strength measurements were performed for all five groups. …”
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  15. 1555

    READER, I MARRIED HIM, OR THE MECHANISM OF ATTENTIONAL CONVERGENCE IN THE ENGLISH-LANGUAGE NARRATIVE by Zinaida M. Chemodurova

    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. …”
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  16. 1556

    Nonlinear optical behaviour of bis (cytosinium) tartarate monohydrate single crystal by P. Jaikumar, T. Balakrishnan, C. Indumathi, T.C. Sabari Girisun, K. Ramamurthi

    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. …”
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  17. 1557

    Microstructural and Mechanical Characterization of W-CuCrZr Joints Brazed with Cu-Ti Filler Alloy by Javier de Prado, María Sánchez, David Swan, Alejandro Ureña

    Published 2021-01-01
    “…Mechanical properties were evaluated by means of Vickers microhardness and mechanical tests by applying pure shear loads. …”
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  18. 1558

    Phase analysis and microstructure study of sintered Ni-Cr composites containing MoS2, Ag and CaF2 additives as solid lubricants by Wan Farhana Mohamad, Amir Azam Khan, Faiz Ahmad, Abdullah Yassin

    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. …”
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  19. 1559

    Characterization of oxide layers formed on 10CrMo9-10 steel operated for a long time in the power industry by Monika Gwoździk, Christiane Ullrich, Christian Schimpf, David Rafaja, Sławomir Kulesza, Mirosław Bramowicz

    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.…”
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  20. 1560

    Aging Behavior of Aluminum Alloy 6082 Subjected to Friction Stir Processing by Khaled Al-Fadhalah, Fahad Asi

    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. …”
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