Skip to main content

13 Result(s)

within N. M. Abbas Remove this filter

and

  1. No Access

    Article

    Effect of platinum on the oxide-to-metal adhesion in thermal barrier coating systems

    An investigation was conducted to determine the role of Pt in a thermal barrier coating system deposited on a nickel-base superalloy. Three coating systems were included in the study using a layer of yttria-st...

    H. M. Tawancy, A. UI-Hamid, N. M. Abbas, M. O. Aboelfotoh in Journal of Materials Science (2008)

  2. No Access

    Article

    Failure of ethylene furnace outlet transfer line due to overheating

    An outlet transfer line tube of an ethylene-cracking furnace failed after five years of service. The tube, made from Incoloy alloy 800H, developed cracks that penetrated the entire thickness. Optical and scann...

    A. Ul-Hamid, H. M. Tawancy, A. I. Mohammed… in Journal of Failure Analysis and Prevention (2005)

  3. No Access

    Article

    Stabilization of Laves phase by silicon in a heat-resistant steel casting and its effect on creep-rupture life

    H. M. Tawancy, N. M. Abbas in Journal of Materials Science (2005)

  4. No Access

    Article

    Effect of superalloy substrate composition on the performance of a thermal barrier coating system

    An investigation was carried out to determine the performance of a thermal barrier coating system consisting of (ZrO2-8% Y2O3)/(Pt) on two single-crystal Ni-base superalloys. Coating/alloy behavior was studied wi...

    H. M. Tawancy, A. I. Mohamed, N. M. Abbas, R. E. Jones… in Journal of Materials Science (2003)

  5. No Access

    Article

    Comparative performance of selected bond coats in advanced thermal barrier coating systems

    An investigation was carried out to determine the comparative performance of selected bond coats representing the diffusion aluminides and overlays in thermal barrier coating systems. Emphasis was placed upon ...

    H. M. Tawancy, N. Sridhar, N. M. Abbas, D. S. Rickerby in Journal of Materials Science (2000)

  6. No Access

    Article

    Failure mechanism of a thermal barrier coating system on a nickel-base superalloy

    An investigation was carried out to determine the failure mechanism of a thermal barrier coating system on an Ni-base superalloy. The coating system consisted of an outer layer of yttria-stabilized zirconia (t...

    H. M. Tawancy, N. Sridhar, N. M. Abbas, D. Rickerby in Journal of Materials Science (1998)

  7. No Access

    Article

    Thermal stability of advanced Ni-base superalloys

    Exposures consisting of 1 to 900 h at 1000 and 1100 °C after an ageing treatment of 16 h at 870 °C were used to study the thermal stability of selected γ′-strengthened Ni-based superalloys representing convent...

    H. M. Tawancy, N. M. Abbas, A. I. Al-Mana, T. N. Rhys-Jones in Journal of Materials Science (1994)

  8. No Access

    Article

    Thermal stability of a platinum aluminide coating on nickel-based superalloys

    An investigation was carried out to determine the thermal stability of a platinum aluminide coating on the directionally solidified alloy MAR M 002 and its single-crystal version alloy, SRR 99, at 800, 1000 an...

    H. M. Tawancy, N. Sridhar, B. S. Tawabini, N. M. Abbas… in Journal of Materials Science (1992)

  9. No Access

    Article

    Mechanism of carburization of high-temperature alloys

    An investigation of the mechanism of gaseous carburization in a reducing environment was conducted for selected Fe- and Ni-base alloys. Carburization kinetics were measured as functions of temperature in the r...

    H. M. Tawancy, N. M. Abbas in Journal of Materials Science (1992)

  10. No Access

    Article

    Energy dispersive X-ray fluorescence analysis of chloride in reforming catalysts

    A relatively less expensive Phillips PV 9500/SY 585 automatic energy dispersive X-ray fluorescence (EDXFR) spectrometer with rhodium target, was modified using a commercial kitchen aluminium wrap** foil filt...

    R. P. Singh, R. P. Khatri, E. R. Pambid… in Journal of Radioanalytical and Nuclear Che… (1990)

  11. No Access

    Article

    Effect of Ni3Nb precipitation on the corrosion resistance of Inconel alloy 625

    H. M. Tawancy, I. M. Allam, N. M. Abbas in Journal of Materials Science Letters (1990)

  12. No Access

    Article

    Effect of long-range ordering on the corrosion properties of an Ni-Mo alloy

    A correlation was made between long-range ordering to Ni4Mo (A4 → D1a superlattice) in a Ni-28wt % Mo alloy and its corrosion properties. Emphasis was placed upon the effects of ordering on: (i) microchemical com...

    H. M. Tawancy, N. M. Abbas in Journal of Materials Science (1989)

  13. No Access

    Article

    Ageing characteristics of a duplex stainless steel

    Hani M. Tawancy, N. M. Abbas in Journal of Materials Science Letters (1988)