Showing 2,301 - 2,320 results of 2,850 for search '"Vickers"', query time: 0.09s Refine Results
  1. 2301

    Improving the Properties of Laser-Welded Al–Zn–Mg–Cu Alloy Joints by Aging and Double-Sided Ultrasonic Impact Compound Treatment by Furong Chen, Chenghao Liu

    Published 2021-05-01
    “…The hardness and tensile properties of the welded components under the different processes were examined via Vickers hardness test and a universal tensile testing machine. …”
    Get full text
    Article
  2. 2302

    Microstructure, mechanical and corrosion properties of cryorolled-AA5052 at various solution treatment temperatures by N M Anas, T E Abioye, A S Anasyida, B K Dhindaw, H Zuhailawati, Azzura Ismail

    Published 2020-01-01
    “…Mechanical and microstructural characterization of the cryorolled samples with and without ST and the base metal were performed using Vickers hardness tester, universal tensile testing machine, FESEM, EBSD and HRTEM. …”
    Get full text
    Article
  3. 2303

    Effects of TiB<sub>2</sub> Particles on the Microstructure Evolution and Mechanical Properties of B<sub>4</sub>C/TiB<sub>2</sub> Ceramic Composite by Haiyan Niu, Yu Zhu, Ning You, Yangwei Wang, Huanwu Cheng, Dujun Luo, Mengying Tang, Jiamin Zhang

    Published 2021-09-01
    “…The results showed that the relative density, Vickers hardness, and fracture toughness of the composite with 20 wt.% submicron and 10 wt.% nano-TiB<sub>2</sub> were significantly improved, which were 98.6%, 30.2 GPa, and 5.47 MPa·m<sup>1/2</sup>, respectively.…”
    Get full text
    Article
  4. 2304

    High-pressure linear friction welding of dissimilar AA5052-H34 and AA6061-T6 joint by Jeong-Won Choi, Jin-Ming Su, Ryutaro Hino, Motomichi Yamamoto, Yasuhiro Aoki, Hidetoshi Fujii

    Published 2023-09-01
    “…Because dissimilar AA5052/AA6061 joints have metallurgical inhomogeneities and strength mismatches, plastic strain constraints near the weld interface of the soft material inevitably occur during tensile testing. Although the Vickers hardness at the weld interface on the AA5052 side had the lowest value, fracture was suppressed owing to the plastic strain constraint. …”
    Get full text
    Article
  5. 2305

    PELAPISAN PERMUKAAN BAJA TAHAN KARAT AISI 304 DENGAN KHROM OKSIDA MENGGUNAKAN METODA SPUTTERING by Sungkono Sungkono, Jan Setiawan, Isfandi isfandi, Ihwanul Aziz

    Published 2019-06-01
    “…Karakterisasi lapisan meliputi pengamatan mikrostruktur menggunakan mikroskop optik, kekerasan dengan microhardness Vickers tester, dan senyawa dalam lapisan dengan X-ray difractometer. …”
    Get full text
    Article
  6. 2306

    Large scale production of graphene aluminum composites by stir casting: Process, microstructure and properties by Zengrong Hu, Zhikang Wu, Shuncun Luo, Xiaonan Wang, Qiong Nian, Yao Chen, Hiromi Nagaumi

    Published 2023-11-01
    “…Compared to its pure aluminum counterpart, the Vickers hardness of the optimal composite sample (with a graphene content of 0.2 wt.%) exhibits a significant increase of 42%. …”
    Get full text
    Article
  7. 2307

    Highly electro-conductive B4C–TiB2 composites with three-dimensional interconnected intergranular TiB2 network by Jun ZHAO, Dong WANG, Xing JIN, Xiang DING, Jianhua ZHU, Songlin RAN

    Published 2023-01-01
    “…When the particle size of initial B4C powders is 10.29 µm, the obtained B4C–15 vol% TiB2 composite ceramics exhibit an electrical conductivity as high as 2.79×104 S/m and a density as low as 2.782 g/cm3, together with excellent mechanical properties including flexural strength, Vickers hardness (HV), and fracture toughness (KIC) of 676 MPa, 28.89 GPa, and 5.28 MPa·m1/2, respectively.…”
    Get full text
    Article
  8. 2308

    On the Structural, Thermal, Micromechanical and Tribological Characterizations of Cu-Filled Acrylonitrile Butadiene Styrene Micro-Composites by Mabrouka Akrout, Basma Ben Difallah, Mohamed Kharrat, Maher Dammak, António Pereira, Filipe J. Oliveira, Isabel Duarte

    Published 2023-09-01
    “…Compared with neat ABS, all the micro-composites showed much higher indentation hardness, Vickers hardness, and indentation elastic modulus. …”
    Get full text
    Article
  9. 2309

    Improvement of Mechanical Properties of Composites with Surface Modified B<sub>4</sub>C for Precision Machining by Jun Ding, Jintao Wang, Hao Yang, Zhenglong Liu, Chao Yu, Xiangcheng Li, Chengji Deng, Hongxi Zhu

    Published 2023-01-01
    “…When the raw material ratio is n(B<sub>4</sub>C): n(Zr): n(Ti) = 12:1:1, the composite ceramics have excellent comprehensive properties, the Vickers hardness reaches 41.2 GPa.…”
    Get full text
    Article
  10. 2310

    Effect of Cooling Rate on the Microstructure and Mechanical Properties of Al-33 wt.% Cu Alloy by Yeon-Joo Lee, Do-Hun Kwon, Eun-Ji Cha, Yong-Wook Song, Hyun-Joo Choi, Hwi-Jun Kim

    Published 2023-03-01
    “…In this study, after performing DED with various energy densities, we investigated the changes in the microstructures and Vickers hardness of cast Al-33 wt.% Cu alloy, which is widely used to estimate the cooling rate during processing by measuring the lamellar spacing of the microstructure after solidification. …”
    Get full text
    Article
  11. 2311

    Sulphate Corrosion Mechanism of Ultra-High-Performance Concrete (UHPC) Prepared with Seawater and Sea Sand by Xin Sun, Tianyu Li, Fangying Shi, Xiaoyan Liu, Yingxia Zong, Baorong Hou, Huiwen Tian

    Published 2022-02-01
    “…We found a transition zone within 1–5 mm of the surface of SSUHPC. The Vickers hardness of mortar in this area was increased by 5~15%, and the porosity was reduced to 3.8489%. …”
    Get full text
    Article
  12. 2312

    Research on the Microstructure and Mechanical Properties of Repaired 7N01 Aluminum Alloy by Laser-Directed Energy Deposition with Sc Modified Al-Zn-Mg by Jibing Chen, Shanji Yu, Junsheng Yang, Rong Xu, Ruidi Li, Shisen Huang, Hongbin Zhu, Xinyan Liu

    Published 2023-04-01
    “…The microstructure and mechanical properties of the repaired specimens were studied through the metallographic microscope, scanning electron microscope, electron backscatter diffraction, universal tensile test, and Vickers hardness test in combination. The results show that the bonding interface of the repaired aluminum alloy is satisfactory, and the porosity is 2.8%. …”
    Get full text
    Article
  13. 2313

    Investigation of thermal and mechanical properties of Sn-Zn and Sn-Zn- Bi near-eutectic solder alloys by Samia E. Attia Negm, A.S. Abdel Moghny, Syed Ismail Ahmad

    Published 2022-09-01
    “…The thermal and various mechanical properties of the formed melt-spun ribbons were investigated by dynamic resonance technique, Vickers micro-hardness test under annealing temperatures in the range from 348 K to 448 K. …”
    Get full text
    Article
  14. 2314

    Critical Influence of the Processing Route on the Mechanical Properties of Zirconia Composites with Graphene Nanoplatelets by Ángela Gallardo-López, Carmen Muñoz-Ferreiro, Cristina López-Pernía, Emilio Jiménez-Piqué, Felipe Gutiérrez-Mora, Ana Morales-Rodríguez, Rosalía Poyato

    Published 2020-12-01
    “…The mechanical properties at room temperature in the macroscale have been assessed by Vickers indentations, four-point bending tests and the impulse-echo technique, while instrumented indentation was used to measure the hardness and Young’s modulus at the nanoscale. …”
    Get full text
    Article
  15. 2315

    β→α Phase Transformation and Properties of Solid-State-Sintered SiC Ceramics with TaC Addition by Shiyi Zheng, Buhao Zhang, Xuejian Liu, Zhongming Chen, Zhengren Huang, Jie Yin

    Published 2023-05-01
    “….% TaC (ST-4) composite ceramic had a relative density of 98.0%, a bending strength of 708.8 ± 28.7 MPa, a fracture toughness of 8.3 ± 0.8 MPa·m<sup>1/2</sup>, an elastic modulus of 384.9 ± 28.3 GPa and a Vickers hardness of 17.5 ± 0.4 GPa.…”
    Get full text
    Article
  16. 2316

    Effect of an In-Office Bleaching Agent with Surface Pre-Reacted Glass-Ionomer Filler on the Enamel Surface: A In-Vitro Study by Mika Shimojima, Noriko Hiraishi, Kodai Akabane, Mohannad Nassar, Masayuki Otsuki, Yasushi Shimada

    Published 2023-07-01
    “…The surface roughness and the Vickers microhardness of the treated enamel surfaces were evaluated. …”
    Get full text
    Article
  17. 2317

    Vat Photopolymerization of Cemented Carbide Specimen by Thomas Rieger, Tim Schubert, Julian Schurr, Andreas Kopp, Michael Schwenkel, Dirk Sellmer, Alexander Wolff, Juliane Meese-Marktscheffel, Timo Bernthaler, Gerhard Schneider

    Published 2021-12-01
    “…As mechanical parameters, Vickers hardness and Palmqvist fracture toughness were considered. …”
    Get full text
    Article
  18. 2318

    Preparation and Thermal Expansion Properties of Zr<sub>2</sub>P<sub>2</sub>WO<sub>12</sub>/Fe-Ni Composites by QI Rui-qiong, LI Wei-jie, LIAN Hong, SHI Xin-wei, YAO Ning

    Published 2016-12-01
    “…In addition, the hardness of the composites was tested using Vickers hardness instrument and the density of the as-prepared composites was characterized by using drainage method. …”
    Get full text
    Article
  19. 2319

    Fused Filament Fabrication Three-Dimensional Printing Multi-Functional of Polylactic Acid/Carbon Black Nanocomposites by Nectarios Vidakis, Markos Petousis, Emmanuel Velidakis, Nikolaos Mountakis, Peder Erik Fischer-Griffiths, Sotirios Grammatikos, Lazaros Tzounis

    Published 2021-07-01
    “…Static tensile, flexural, Charpy’s impact and Vickers microhardness mechanical properties were investigated for the neat and PLA/CB 3D printed nanocomposites. …”
    Get full text
    Article
  20. 2320

    Evaluation of the effectiveness of bioactive glass fillers against Candida albicans adhesion to PMMA denture base materials: An in vitro study by Mohammed M. Gad, Khalid Abu-Rashid, Adel Alkhaldi, Omar Alshehri, Soban Q. Khan

    Published 2022-12-01
    “…Direct culture method was used to assess C. albicans adhesion. A profilometer and Vickers hardness test were used to measure surface roughness and hardness respectively. …”
    Get full text
    Article