Rich Phase

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Zhenlun Song - One of the best experts on this subject based on the ideXlab platform.

  • corrosion behaviour of superplastic zn al alloys in simulated acid rain
    Corrosion Science, 2012
    Co-Authors: Lijing Yang, Yangming Zhang, Xuduo Zeng, Zhenlun Song
    Abstract:

    The influence of aluminium content on the corrosion behaviour of superplastic Zinc–Aluminium alloys immersed in simulated acid rain was investigated. ZA4, ZA8, ZA12, and ZA16 alloys were used for the test. The Al-Rich Phase was prone to preferential attack when the superplastic Zn–Al alloy was immersed for 5 d. However, with increasing ratios of the Al Phase, the corrosion rates of the four samples decreased in the order ZA4 > ZA8 > ZA12 > ZA16. The corrosion rate of the alloy decreased with increasing Al content, which may be related to the distribution of the Al-Rich Phase. Corrosion kinetic parameters were also calculated.

Lijing Yang - One of the best experts on this subject based on the ideXlab platform.

  • corrosion behaviour of superplastic zn al alloys in simulated acid rain
    Corrosion Science, 2012
    Co-Authors: Lijing Yang, Yangming Zhang, Xuduo Zeng, Zhenlun Song
    Abstract:

    The influence of aluminium content on the corrosion behaviour of superplastic Zinc–Aluminium alloys immersed in simulated acid rain was investigated. ZA4, ZA8, ZA12, and ZA16 alloys were used for the test. The Al-Rich Phase was prone to preferential attack when the superplastic Zn–Al alloy was immersed for 5 d. However, with increasing ratios of the Al Phase, the corrosion rates of the four samples decreased in the order ZA4 > ZA8 > ZA12 > ZA16. The corrosion rate of the alloy decreased with increasing Al content, which may be related to the distribution of the Al-Rich Phase. Corrosion kinetic parameters were also calculated.

X L - One of the best experts on this subject based on the ideXlab platform.

  • investigating the effect of cu Rich Phase on the corrosion behavior of super 304h austenitic stainless steel by tem
    Corrosion Science, 2018
    Co-Authors: X Y San, B Zhang, X Wei, Emeka E Oguzie, X L
    Abstract:

    Abstract The precipitation of a fine Cu-Rich Phase dispersedly distributed in the austenitic matrix can impart the novel properties of Super 304H SS. However, the contributions have not been well understood due to the difficulty encountered in obtaining precise experimental information on the corrosion events introduced by the nano-sized Cu-Rich precipitates. In this work, we have applied TEM and clarified the dissolution occurred in Cu-Rich Phase and the dissolution-induced evolution in structure and chemistry on the surface. This work enabled us glean atomic scale insights on the effect of the Cu-Rich Phase on the corrosion behavior of the Super 304H SS.

Tong Gao - One of the best experts on this subject based on the ideXlab platform.

  • precipitation behaviors of cubic and tetragonal zr Rich Phase in al si zr alloys
    Journal of Alloys and Compounds, 2016
    Co-Authors: Tong Gao, Anna V Ceguerra, Andrew J Breen, Xiangfa Liu, Simon P Ringer
    Abstract:

    Abstract The precipitation behaviors of Zr–Rich Phase in binary Al–0.5Zr and ternary Al–3Si–0.5Zr alloys were investigated by high resolution transmission electron microscopy and atom probe. After the alloys were aged at 525 °C for 24 h, the precipitates in Al–0.5Zr alloy are identified as L1 2 –ZrAl 3 , performing a coherent relationship with the Al matrix. While in Al–3Si–0.5Zr alloy, the precipitates are Si–containing D0 23 –Zr(Al,Si) 3 , which has an approximate 90° reversed cube–on–cube orientation relationship with Al. It is regarded that Si accelerates the precipitation of D0 23 –Zr(Al,Si) 3 .

B B Straumal - One of the best experts on this subject based on the ideXlab platform.

  • grain boundary wetting by a solid Phase microstructural development in a zn 5 wt al alloy
    Acta Materialia, 2004
    Co-Authors: G A Lopez, E J Mittemeijer, B B Straumal
    Abstract:

    A systematic study of grain boundary wetting by a solid Phase was carried out for the first time. The microstructure of Zn–5 wt% Al polycrystals was studied in the temperature range 250–375 °C. The Al-Rich Phase formed either chains of separated lens-like precipitates or continuous layers at the Zn-Rich Phase/Zn-Rich Phase grain boundaries upon annealing at different temperatures. The contact angle at the intersection between the Al-Rich Phase/Zn-Rich Phase interPhase boundaries and the Zn-Rich Phase/Zn-Rich Phase grain boundary decreased with increasing temperature. It became zero at a certain temperature, and remained zero above this solid-state wetting temperature, i.e., a continuous Al-Rich Phase layer covered the Zn-Rich Phase/Zn-Rich Phase grain boundaries. The fraction of wetted grain boundaries increased with increasing temperature and was independent of annealing time. The growth of the Al-Rich Phase at the grain boundaries is controlled by volume diffusion in the matrix Phase.