The Experts below are selected from a list of 189 Experts worldwide ranked by ideXlab platform

Dejing Zhou - One of the best experts on this subject based on the ideXlab platform.

  • high corrosion resistance and strain hardening of high mg al Alloy with er and zr by using a new reverse stabilization process
    Scripta Materialia, 2019
    Co-Authors: Yusheng Ding, Xiangyuan Xiong, Hui Huang, Xiaolan Wu, Rui Shao, Cheng Huang, Dejing Zhou
    Abstract:

    Abstract An abnormal reverse transition of intergranular corrosion from sensitization to stabilization was observed in the Al-6.4 Mg-0.43Mn-0.37Er-0.17Zr Alloy at low annealing temperatures between 220 and 260 °C for the first time. The reverse stabilized Alloy annealed at 240 °C for 5 h had excellent long-term corrosion resistance in the deformed state. The corresponding transmission electron microscopy analysis showed that Al3Mg2 precipitates distributed separately along grain boundary, at triple junctions and the Al6Mn phase boundary. The combination of the low temperature reverse stabilization and retarded recrystallization by addition of Er and Zr caused the high Mg aluminum Alloy to exhibit high corrosion resistance and strain hardening.

Yusheng Ding - One of the best experts on this subject based on the ideXlab platform.

  • high corrosion resistance and strain hardening of high mg al Alloy with er and zr by using a new reverse stabilization process
    Scripta Materialia, 2019
    Co-Authors: Yusheng Ding, Xiangyuan Xiong, Hui Huang, Xiaolan Wu, Rui Shao, Cheng Huang, Dejing Zhou
    Abstract:

    Abstract An abnormal reverse transition of intergranular corrosion from sensitization to stabilization was observed in the Al-6.4 Mg-0.43Mn-0.37Er-0.17Zr Alloy at low annealing temperatures between 220 and 260 °C for the first time. The reverse stabilized Alloy annealed at 240 °C for 5 h had excellent long-term corrosion resistance in the deformed state. The corresponding transmission electron microscopy analysis showed that Al3Mg2 precipitates distributed separately along grain boundary, at triple junctions and the Al6Mn phase boundary. The combination of the low temperature reverse stabilization and retarded recrystallization by addition of Er and Zr caused the high Mg aluminum Alloy to exhibit high corrosion resistance and strain hardening.

Zhang Zhaodong - One of the best experts on this subject based on the ideXlab platform.

  • Diffusion bonding of Mg/Al Alloy with Zn interlayer metal
    Transactions of the China Welding Institution, 2020
    Co-Authors: Zhang Zhaodong
    Abstract:

    The characteristics of microstructure and mechanical properties of the Mg/Al Alloy joint by diffusion bonding with a Zn interlayer were studied by means of metalloscopy, X-ray diffraction, electron probe microanalysis and mechanical property test. Investigations showed that the Mg/Al Alloy joint by diffusion bonding with Zn interlayer consists of a multilayer sandwich structure, including the transition zone of Zn-Al, the residual Zn interlayer, as well as the transition zone of Zn-Mg. The transition zone of Zn-Al is composed mainly of a solid solution structure, while the Zn-Mg transition zone has a relative larger dimension after a rapid eutectic reaction. The addition of zinc interlayer inhibits the inter-diffusion of Mg and Al Alloy efficiently. The Zn-Mg transition zone constitutes the main part of the joint and consists of Mg and the new phases formed are Mg2Zn11 and MgZn2 intermetallic compound. According to the phase constitution analyses executed on each side of the fracture face, it was deduced that the fracture of Mg/Al Alloy joint located around the interface of Zn-Mg transition zone. The average shear strength of Mg/Al Alloy joints diffusion bonded with Zn interlayer reaches 70 MPa and exceeds that of the joints bonded without Zn interlayer enormously.

  • Interfacial structure and mechanical property of Mg/Al Alloy joint diffusion bonded with Zn interlayer metal
    2020
    Co-Authors: Zhang Zhaodong
    Abstract:

    The characteristics of microstructure and mechanical strength of the Mg/Al Alloy joint diffusion bonded with a Zn interlayer were studied by means of metalloscopy,X-ray diffraction(XRD),electron probe microanalysis(EPMA) and mechanical property test.Investigations showed that the Mg/Al Alloy joint diffusion bonded with Zn interlayer consists of a multilayer sandwich structure,including the transition zone on Al side,Zn and Zn-Mg transition zone,as well as the transition zone on Mg side.The transition zone on Al side is very thin and composed mainly of a solid solution structure,while the Zn-Mg transition zone has a relative larger dimension after a rapid eutectic reaction.The addition of zinc interlayer inhibits the inter-diffusion of Mg and Al Alloy efficiently.The Zn-Mg transition zone constitutes the main part of the joint and consists of Mg crystals and the new phase formed is MgZn intermetallic compound.The mechanical strength of Mg/Al Alloy joints diffusion bonded with Zn interlayer reached 42 MPa.According to the phase constitution analyses executed on each side of the fracture face,it was deduced that the fracture of Mg/Al Alloy joint located around the interface of Zn and Zn-Mg transition zone.

Cheng Huang - One of the best experts on this subject based on the ideXlab platform.

  • high corrosion resistance and strain hardening of high mg al Alloy with er and zr by using a new reverse stabilization process
    Scripta Materialia, 2019
    Co-Authors: Yusheng Ding, Xiangyuan Xiong, Hui Huang, Xiaolan Wu, Rui Shao, Cheng Huang, Dejing Zhou
    Abstract:

    Abstract An abnormal reverse transition of intergranular corrosion from sensitization to stabilization was observed in the Al-6.4 Mg-0.43Mn-0.37Er-0.17Zr Alloy at low annealing temperatures between 220 and 260 °C for the first time. The reverse stabilized Alloy annealed at 240 °C for 5 h had excellent long-term corrosion resistance in the deformed state. The corresponding transmission electron microscopy analysis showed that Al3Mg2 precipitates distributed separately along grain boundary, at triple junctions and the Al6Mn phase boundary. The combination of the low temperature reverse stabilization and retarded recrystallization by addition of Er and Zr caused the high Mg aluminum Alloy to exhibit high corrosion resistance and strain hardening.

Xiaolan Wu - One of the best experts on this subject based on the ideXlab platform.

  • high corrosion resistance and strain hardening of high mg al Alloy with er and zr by using a new reverse stabilization process
    Scripta Materialia, 2019
    Co-Authors: Yusheng Ding, Xiangyuan Xiong, Hui Huang, Xiaolan Wu, Rui Shao, Cheng Huang, Dejing Zhou
    Abstract:

    Abstract An abnormal reverse transition of intergranular corrosion from sensitization to stabilization was observed in the Al-6.4 Mg-0.43Mn-0.37Er-0.17Zr Alloy at low annealing temperatures between 220 and 260 °C for the first time. The reverse stabilized Alloy annealed at 240 °C for 5 h had excellent long-term corrosion resistance in the deformed state. The corresponding transmission electron microscopy analysis showed that Al3Mg2 precipitates distributed separately along grain boundary, at triple junctions and the Al6Mn phase boundary. The combination of the low temperature reverse stabilization and retarded recrystallization by addition of Er and Zr caused the high Mg aluminum Alloy to exhibit high corrosion resistance and strain hardening.