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  1. No Access

    Article

    Experimental Study on Homogeneous Catalytic Upgrading of Heavy Oil

    Four catalyst precursors were prepared to assess the performance on the upgrading process of heavy oil. It has been showed that viscosity of Lukeqin heavy oil was decreased significantly, which revealed a visc...

    X. D. Tang, X. D. Chen, J. J. Li, L. Y. Deng, G. J. Liang in Petroleum Chemistry (2017)

  2. No Access

    Chapter

    Hydrogen Effects on 22-13-5 Austenitic Steel at Low Temperatures

    An investigation of internal hydrogen effects on the mechanical properties and microstructure of 22Cr-13Ni-5Mn-N austenitic steel was made from 293 to 77K. For charged specimens gaseous hydrogen charging resul...

    L. M. Ma, G. J. Liang, L. J. Rong, S. H. He… in Advances in Cryogenic Engineering Material… (2000)

  3. No Access

    Chapter

    Effect of Yttrium on Cryogenic Mechanical Properties and Fracture Behavior of Al-Li-Cu-Mg-Zr Alloy

    The effect of various contents (0.07 and 0.23 Wt-%) of rare earth (RE) element yttrium on cryogenic mechanical properties and fracture behavior of an Al-Li-Cu-Mg-Zr alloy has been studied at temperatures from ...

    L. M. Ma, G. J. Liang, Y. Y. Li, H. M. Lee… in Advances in Cryogenic Engineering Material… (1997)

  4. No Access

    Chapter

    Effect of Hydrogen on Mechanical Properties of EB-Welded Joints of JBK-75 Steel from Ambient to Cryogenic Temperatures

    The method of vacuum electron-beam (EB) welding was used to butt-weld the solution-treated plates of JBK-75, an age-hardenable austenitic stainless steel. The un-notched, notched tensile specimens and Charpy i...

    Y. Y. Li, L. M. Ma, G. J. Liang, Q. H. Gui… in Advances in Cryogenic Engineering Material… (1994)