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  • Wiley  (5)
  • 2020-2024  (5)
  • Engineering  (5)
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  • Wiley  (5)
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  • 2020-2024  (5)
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  • Engineering  (5)
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  • 1
    Online Resource
    Online Resource
    Insights into the oxidation behavior of Ni–25Cr–10Fe– x Si ( x  = 1, 2, 3, 4 wt%) alloys at 1000°C in ambient air
    Wiley ; 2022
    In:  Materials and Corrosion Vol. 73, No. 9 ( 2022-09), p. 1359-1368
    Details
    In: Materials and Corrosion, Wiley, Vol. 73, No. 9 ( 2022-09), p. 1359-1368
    Abstract: The isothermal oxidation behavior of Ni–25Cr–10Fe– x Si ( x  = 1, 2, 3, 4 wt%) alloys at 1000°C in ambient air was investigated. The thermodynamics and kinetics of the oxidation behavior were analyzed using scanning electron microscopy with energy‐dispersive X‐ray spectroscopy, Raman spectroscopy, and the Thermo‐Calc software with the TTNI8 database. The weight gain per unit area of the four alloys showed a parabolic relationship with the oxidation time. The weight gain of the oxides decreased with the addition of larger amounts of Si from 1 to 3 wt%; however, this trend was lost when excessive addition of Si (4 wt% Si) was added. A sufficient amount of discontinuously distributed SiO 2 precipitates resulted in better oxidation resistance and adhesion properties than continuous SiO 2 layers. The spallation resistance of the oxide scales is believed to be mainly dependent on the distribution of the SiO 2 layer rather than the content of SiO 2 ; 3 wt% is a reasonable reference value for Si addition for improving the oxidation resistance of Ni–25Cr–10Fe alloys.
    Type of Medium: Online Resource
    ISSN: 0947-5117 , 1521-4176
    URL: Issue
    URL: Article
    DOI: 10.1002/maco.v73.9
    DOI: 10.1002/maco.202213063
    RVK:
    ZG 1100
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 1481051-7
    detail.hit.zdb_id: 1224916-6
    detail.hit.zdb_id: 202688-0
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Effect of sodium‐zinc EDTA and sodium gluconate as electrolyte additives on corrosion and discharge behavior of Mg as anode for air battery
    Wiley ; 2022
    In:  Materials and Corrosion Vol. 73, No. 11 ( 2022-11), p. 1776-1787
    Details
    In: Materials and Corrosion, Wiley, Vol. 73, No. 11 ( 2022-11), p. 1776-1787
    Abstract: The corrosion inhibiting performance of EDTA‐ZnNa 2 and C 6 H 11 NaO 7 for pure magnesium in a 3.5 wt% NaCl electrolyte was investigated through electrochemical tests and surface microanalysis. And their effect on discharge behavior of Mg anode used for air battery was evaluated through constant‐current discharging tests. The inhibition performance varied with different additive concentrations and the maximum inhibition efficiency values were obtained as 87.11% and 77.70% by using 0.005 M EDTA‐ZnNa 2 and 0.01 M C 6 H 11 NaO 7 , respectively. Both the presence of 0.005 M EDTA‐ZnNa 2 and 0.01 M C 6 H 11 NaO 7 in electrolyte improved the battery performance, especially under a smaller discharging current. The discharge platform time was extended from 15.66 to 22.57 h and 20.04 h by adding EDTA‐ZnNa 2 and C 6 H 11 NaO 7 at discharging current density of 2 mA cm −2 respectively, accompanied by a negligible battery voltage drop of about 20 mV. In the case of EDTA‐ZnNa 2 , zinc hydroxide formed by the dissociated zinc ions cooperated with magnesium hydroxide and organic adsorption film for corrosion inhibition. Therefore, by using it a more pronounced discharge performance was achieved than C 6 H 11 NaO 7 .
    Type of Medium: Online Resource
    ISSN: 0947-5117 , 1521-4176
    URL: Issue
    URL: Article
    DOI: 10.1002/maco.v73.11
    DOI: 10.1002/maco.202213322
    RVK:
    ZG 1100
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 1481051-7
    detail.hit.zdb_id: 1224916-6
    detail.hit.zdb_id: 202688-0
    Location Call Number Limitation Availability
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Enhanced corrosion and wear properties of H13 steel with Co‐based alloy coating prepared by laser cladding
    Wiley ; 2022
    In:  Materials and Corrosion Vol. 73, No. 9 ( 2022-09), p. 1430-1443
    Details
    In: Materials and Corrosion, Wiley, Vol. 73, No. 9 ( 2022-09), p. 1430-1443
    Abstract: In this study, Stellite 21 Co‐based alloy coating was prepared on the surface of the H13 steel substrate by laser cladding. The phase composition, microstructure, chemical constitution, microhardness, and wear property of the coating were studied, respectively. The corrosion resistance of the coating was evaluated by electrochemical test and salt spray test. The results show that the coating is mainly composed of γ‐Co, CoC x , and Cr 7 C 3 phases. γ‐Co solid solution matrix separates within the dendrites, while Mo‐rich intermetallic phases and carbides separate in the interdendritic regions. The average microhardness of the coating is twice that of the H13 substrate. The wear loss of the coating is 74.3% lower than that of the substrate, exhibiting better wear resistance. The main strengthening mechanisms of the coating are solid solution strengthening and second phase strengthening. The self‐corrosion potential of the coating is more positive than that of the H13 steel and the corrosion current density is only 1/160 of the H13 steel. The salt spray test after 168 h reveals that the coating exhibits much better corrosion resistance than that of the substrate.
    Type of Medium: Online Resource
    ISSN: 0947-5117 , 1521-4176
    URL: Issue
    URL: Article
    DOI: 10.1002/maco.v73.9
    DOI: 10.1002/maco.202213110
    RVK:
    ZG 1100
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 1481051-7
    detail.hit.zdb_id: 1224916-6
    detail.hit.zdb_id: 202688-0
    Location Call Number Limitation Availability
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    Online Resource
  • 4
    Online Resource
    Online Resource
    Investigation of atomic diffusion at Ni/Zr 48 Cu 36 Ag 8 Al 8 interfaces in the glass transition temperature
    Wiley ; 2021
    In:  Surface and Interface Analysis Vol. 53, No. 2 ( 2021-02), p. 135-139
    Details
    In: Surface and Interface Analysis, Wiley, Vol. 53, No. 2 ( 2021-02), p. 135-139
    Abstract: Poor plasticity and small dimension are the main disadvantages of metallic glass. Diffusion bonding and composite fabrication between bulk metallic glasses (BMGs) and crystal metal are promising methods of addressing these disadvantages. In this study, the long‐term atomic diffusion behavior in the glass transition temperature ( T g ) is investigated to avoid the formation of the crystalline phase at the interface. Diffusion‐coupled Ni/Zr 48 Cu 36 Ag 8 Al 8 BMG is successfully fabricated by sputtering deposition. The diffusivities of Ni in Zr 48 Cu 36 Ag 8 Al 8 metallic glass are calculated by using the thin‐film solution of Fick's second law. The diffusivities of Ni in Zr 48 Cu 36 Ag 8 Al 8 alloy are functions of annealing temperature and time because of the dominant effect of the free volume. High‐resolution transmission electron microscopy results show that there are no crystals formed at the interface of diffusion‐coupled Ni/Zr 48 Cu 36 Ag 8 Al 8 BMG below T g , and mutual element diffusion occurs near the interface. Analysis of the diffusion behavior and microstructure indicates that the long‐term annealing below T g can be applied to the diffusion bonding of BMG and crystal metal.
    Type of Medium: Online Resource
    ISSN: 0142-2421 , 1096-9918
    URL: Issue
    URL: Article
    DOI: 10.1002/sia.v53.2
    DOI: 10.1002/sia.6892
    RVK:
    ZG 1100
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2023881-2
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    Online Resource
  • 5
    Online Resource
    Online Resource
    Energy decay estimates for a two‐dimensional coupled wave‐plate system with localized frictional damping
    Wiley ; 2020
    In:  ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik Vol. 100, No. 2 ( 2020-02)
    Details
    In: ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Wiley, Vol. 100, No. 2 ( 2020-02)
    Abstract: This paper is devoted to the energy decay estimates for the two‐dimensional coupled wave‐plate system with local frictional damping in a bounded domain. The frictional damping is only distributed in the part of the plate's or wave's domain, and the other is stabilized by the transmission through the interface of the plate's and wave's domains. Using the frequency domain approach and the multiplier technique, we show respectively that the energy of the system decays polynomially under some geometric condition when the frictional damping only acts on the part of the plate, and the energy of the system is exponentially stable when the frictional damping acts only on the other part of the wave.
    Type of Medium: Online Resource
    ISSN: 0044-2267 , 1521-4001
    URL: Issue
    URL: Article
    DOI: 10.1002/zamm.v100.2
    DOI: 10.1002/zamm.201900030
    RVK:
    ZG 1100
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 203011-1
    detail.hit.zdb_id: 1474638-4
    SSG: 17,1
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    Online Resource
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