Showing 681 - 700 results of 866 for search '(microstructural OR microstructure) refinement', query time: 0.11s Refine Results
  1. 681

    Mechanosynthesis of Nanocrystalline Biphasic Ni-Fe Alloy Powders by Mechanical Alloying and Their Structural and Thermal Characterization by Myriam Azabou, Wael Ben Mbarek, Asma Wederni, Sumaya Almenia, Mohamed Khitouni, Joan-Josep Suñol

    Published 2025-02-01
    “…The average crystallite size was determined to be around 7 nm with the lattice strains quantified as 0.48% for both phases. This significant refinement of microstructure indicates extensive plastic deformation within the grains. …”
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    Article
  2. 682

    Sulfate attack on geopolymer: effect of the proportion of binder and air-entraining additive by Neusa Aparecida Munhak Beltrame, Vitor Lorival Kudlanvec Junior, Rafaela Souto, Amanda Venancio Trisotto, João Cláudio Nascimento da Silva, Ronaldo Alves de Medeiros-Junior

    Published 2024-09-01
    “…The sulfate resistance properties were evaluated by the change in longitudinal length, mass variation, compressive strength, flexural tensile strength, and microstructure. SEM/EDS analyses suggest the formation of caminite and a change in the structure of the aluminosilicate gel to M-A-S-(H) in mortars exposed to MgSO4, while thenardite was indicated as a harmful product in mortars subjected to Na2SO4. …”
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    Article
  3. 683

    Influence of Nd3+ ion on piezoelectric studies in lead barium niobate ferroelectric ceramics for device applications by D. Parajuli, N. Murali

    Published 2024-12-01
    “…Grain size analysis showed values between 1.09 μm and 3.95 μm, with the microstructure becoming more refined as Nd³⁺ content increased. …”
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    Article
  4. 684

    Improved Mechanical Performances of Hastelloy C276 Composite Coatings Reinforced with SiC by Laser Cladding by Yuqing Tang, Zheng Lu, Xuan Zhang, Xihuai Wang, Shengbin Zhao, Mingdi Wang

    Published 2024-12-01
    “…When SiC powder particles are present around the crystals, the microstructure of the cladding layer grows acicular crystals containing Si and C. …”
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    Article
  5. 685

    Cryogenic high-pressure torsion of a single-phase CoCrFeNiMn high-entropy alloy: Nanoindentation strain-rate sensitivity and creep deformation behavior by M. Zare Ghomsheh, F. Khodabakhshi, G. Khatibi, B. Weiss, C. Rentenberger, E. Schafler

    Published 2025-10-01
    “…These calculated trends of SRS value and variations of creep deformation depth for the examined materials were discussed in correlation with the characterized microstructural aspects in the form of sub-grains and dislocation’s structure, which were analyzed using advanced microscopy techniques.…”
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    Article
  6. 686

    Modeling and analysis of the effects of age hardening, magnesium dissolution, and SiC reinforcement on wear properties in eutectic Al-Si composites using full factorial techniques by Ashwin Shetty, Thirumaleshwara Bhat, Sathyashankara Sharma, Ravikantha Prabhu, Ananda Hegde, Nithesh K, Gajanan Anne

    Published 2024-01-01
    “…These findings offer valuable insights into the design of high-performance Al-Si composites, highlighting the importance of microstructural control to meet the demands of advanced engineering applications.…”
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    Article
  7. 687

    Improving ductility via grain structure control in Sc/Zr modified Al-Cu-Li alloys by pulsed-laser powder bed fusion by Siyu Zhang, Wei Fan, Zhiwei Hao, Yongxia Wang, Mingji Dang, Yang Qi, Hua Tan, Fengying Zhang, Xin Lin

    Published 2025-12-01
    “…The samples fabricated via pulsed laser exhibit a remarkable 211% improvement in elongation compared to those fabricated by continuous laser, with only a minor 7.6% decrease in tensile strength due to the shift from heterogeneous deformation induced (HDI) strengthening to grain refinement strengthening. This strategy enables tunable microstructural design in various alloy systems, offering enhanced flexibility to balance strength and ductility for advanced engineering applications.…”
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    Article
  8. 688

    Simultaneously improving strength and corrosion resistance of additively manufactured Mg-Gd-Zr alloy by in-situ alloying with Al by Ziyi Liu, Qingchen Deng, Yiwen Ding, Ziyan Li, Jiacheng Wang, Liming Peng

    Published 2025-04-01
    “…These microstructural transformations yield a synchronous enhancement in strength and corrosion resistance with increasing Al content. …”
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    Article
  9. 689

    Tribocorrosion behavior of nickel-free duplex and 316L stainless steels fabricated by laser powder bed fusion in artificial seawater by Abhinav Anand, Chinmayee Nayak, Ermei Mäkilä, Zaiqing Que, Heidi Piili, Sneha Goel, Antti Salminen, Ashish Ganvir

    Published 2025-09-01
    “…In this work, nickel-free duplex stainless steel (NiFDSS) and 316L stainless steel were produced by laser powder bed fusion (PBF-LB/M) under optimized parameters, reaching 98.83 % and 99.80 % relative densities, respectively. Microstructural analysis showed transformation from fully ferritic in the as-built condition to duplex after heat treatment (950 °C/1 h, followed by water quenching) for NiFDSS. …”
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  10. 690

    Effect of Ultrasonic Nanocrystalline Surface Modification (UNSM) on Stress Corrosion Cracking of 304L Stainless Steel by Hyunhak Cho, Young-Ran Yoo, Young-Sik Kim

    Published 2024-11-01
    “…The impact of peening treatment on SCC properties was explored through microstructural analysis, corrosion properties analysis, and compressive residual stress assessments. …”
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  11. 691

    Enhancing the strength-ductility synergy in CoCrNi medium-entropy alloys via grain boundary segregation engineering by Bowen Wang, Cunliang Pan, Zhengyi Jin, Hongmei Zhu, Chao Lu, Julia K. Hufenbach, Xiaoqiang Li, Konrad Kosiba

    Published 2025-12-01
    “…In this study, grain boundary segregation engineering was employed, using boron (B) as a segregant, to investigate the effects of varying B concentrations on the microstructure and properties of CoCrNi medium-entropy alloys (MEAs). …”
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  12. 692

    The dynamic recrystallization induced by Al2Nd and promoted by Al2RE in a hot compressed Mg–1Al-1.5Nd-1.5Y-0.5Gd alloy by Shengquan Liang, Qianlong Ren, Xiaowei Li, Shiyu Luan, Xiaoqiang Li, Peipeng Jin, Jinhui Wang

    Published 2024-11-01
    “…In this study, the effects of various hot working parameters on the microstructure and hardness of an extruded Mg–1Al-1.5Nd-1.5Y-0.5Gd alloy were investigated including strain rate ranging from 0.001 s⁻1 to 1 s⁻1 and deformation temperature between 300 °C and 450 °C. …”
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  13. 693

    Effect of Nd3+ and Sm3+ doping on the crystal structure and dielectric properties of Y2−xAxMgTiO6 ceramics by Hongcheng Yang, Xier Huang, Jin Zhang, Enzhu Li, Enxiang Guan, Ruzhong Zuo

    Published 2025-06-01
    “…The sample exhibited a pure phase and dense microstructure, with an optimal Q×f value of 74,821 GHz for YMT Nd (x = 0.1) and 67,068 GHz for YMT Sm (x = 0.05). …”
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  14. 694

    Unveiling first self‐healing in metallised film capacitor: A macro–micro analysis by Yushuang He, Feipeng Wang, Guoqiang Du, Lei Pan, Jian Li, Hongming Yang, Xiao Zhang, Zhicheng Zhang, Kaizheng Wang

    Published 2025-04-01
    “…The quantified relationship between the macroscopic characteristics and microstructure evolution (polypropylene decomposition and aluminium electrode vaporisation) is established in MFCs under diverse SH energy levels. …”
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    Article
  15. 695

    Structural and magneto-elastic properties of samarium doped cobalt–nickel ferrite ceramics obtained by spark plasma sintering by Mario German Ibuado, Renee Joselin Sáenz-Hernández, Carlos Roberto Santillan-Rodriguez, Jose Andres Matutes-Aquino, María Cristina Grijalva-Castillo

    Published 2025-03-01
    “…The composition, structure, and microstructure of the nanoparticles and pellets were characterized by different techniques such as X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. …”
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    Article
  16. 696

    Effect of Scanning Speed on Wear and Corrosion Behaviors of High-Speed Laser-Cladded Cu-TiC Coating by Shiya Cheng, Yuankai Zhou, Xue Zuo

    Published 2025-06-01
    “…The influence laws of the scanning speed (86.4–149.7 mm/s) on the microstructure, tribological properties, and corrosion resistance of the coating were explored. …”
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    Article
  17. 697

    Insight into the durability of concrete based on ultrafine ground granulated blast furnace slag, phosphogypsum, and steel slag by Xiao Huang, Junming Liao, Jinfang Zhang, Yingfu Wang, Qingge Feng

    Published 2025-09-01
    “…Sulfate corrosion in UFBC primarily produces needle-like ettringite (AFt), causing less microstructural damage than the gypsum crystals formed in PCBC and UBC. …”
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    Article
  18. 698

    A constitutive model optimizing superalloy performance: The interplay of annealing twins, dislocations, and grain boundaries by Zongpeng Tian, Rui Zhao, Xinshun Diao, Shan Jiang, Debin Shan, Min Wan

    Published 2025-07-01
    “…To elucidate the mechanistic roles of these microstructural features, this study employed high-precision planar argon ion polishing and electron backscatter diffraction to quantitatively characterize the annealing twin volume fraction, dislocation density, and grain size in superalloys heat-treated at various temperatures. …”
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  19. 699

    Hot deformation physical mechanisms and a unified constitutive model of a solid solution Ti55511 alloy deformed in the two-phase region by Huijie Zhang, Y.C. Lin, Gang Su, Yongfu Xie, Wei Qiu, Ningfu Zeng, Song Zhang, Guicheng Wu

    Published 2025-01-01
    “…In this work, the flow behaviors and microstructure evolution of a solid solution Ti55511 alloy deformed in the two-phase region are investigated by hot compression experiments. …”
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    Article
  20. 700

    Comparative analysis of bobbin tool and one-step double-acting tool in friction stir welding of aluminum AA1100 by Yudha Eko Widyantono, Yoshihiko Uematsu, Ilhamdi, Sulardjaka, Jos Istiyanto, Muizuddin Azka, Nurul Muhayat, Triyono

    Published 2025-09-01
    “…Results indicated that the bobbin tool produced rougher beads and tear defects due to its design, while the one-step double-acting tool, particularly at a 2 mm offset, yielded cleaner, more uniform welds with fewer defects and enhanced material control. Microstructural analysis showed that the stir zone exhibited uniform grain refinement, and the Heat-Affected Zone (HAZ) benefited from finer grain structures due to improved heat management. …”
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    Article