Sökning: "Ardeshir Golpayegani"

Hittade 2 avhandlingar innehållade orden Ardeshir Golpayegani.

  1. 1. Precipitate growth and coarsening in creep resistant chromium steels

    Författare :Ardeshir Golpayegani; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; coarsening; 9-12% chromium steel; growth; APFIM; energy filtered TEM; Boron; precipitates; atom probe field ion microscopy; EFTEM;

    Sammanfattning : .... LÄS MER

  2. 2. Precipitate stability in creep resistant 9-12% chromium steels

    Författare :Ardeshir Golpayegani; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; growth; precipitates; coarsening; atom probe field ion microscopy APFIM ; energy filtered TEM EFTEM ; 9-12% chromium steel;

    Sammanfattning : 9-12% chromium steels are used extensively in modern steam power plants at service temperatures up to 600°C. These materials are subjected to creep deformation during exposure which is the limiting factor in increasing the steam temperature and thus the thermal efficiency of the plants. LÄS MER