Sökning: "sanicro"

Visar resultat 1 - 5 av 11 avhandlingar innehållade ordet sanicro.

  1. 1. The High Temperature Corrosion of Alloy Sanicro 28

    Författare :Carolina Pettersson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; alkali induced corrosion; chromate formation; Sanicro 28; oxidation of stainless steel; KCl induced corrosion;

    Sammanfattning : This thesis investigates the influence of potassium chloride in solid and gaseous form on the oxidation of alloy Sanicro 28 (35Fe27Cr31Ni). KCl induced corrosion of chromia forming alloys is important e.g. in fireside corrosion in biomass and waste fired power plants. LÄS MER

  3. 2. High Temperature Corrosion of Some Stainless Steels

    Författare :Carolina Pettersson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; oxidation of stainless steel; alkali induced corrosion; KCl induced corrosion; Sanicro 28; chromate formation;

    Sammanfattning : The high temperature corrosion of the alloy Sanicro 28 (35Fe27Cr31Ni) is addressed in this thesis. The influence of water vapour and two potassium-containing salts was investigated. In addition, three other alloys were studied. Polished steel coupons were isothermally exposed in tube furnaces at 600–800°C in 5% O2 and in 5% O2 + 40% H2O. LÄS MER

  4. 3. Investigation of the high temperature oxidation behaviour of the austenitic stainless steel Sanicro 25

    Författare :Luciana Intiso; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : .... LÄS MER

  5. 4. Deposit Induced Corrosion in Biofuel Combustion

    Författare :Petter Andersson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ferritic steel; high temperature corrosion; superheater; waste combustion; CFB; biofuel boiler; waterwall; alkali chloride; deposit induced corrosion; chromate; nickel-based alloy; austenitic steel; martensitic steel; waste boiler;

    Sammanfattning : Deposit induced corrosion is one of the main mechanisms for attack on heat exchangers in biofuel boilers. This severe corrosion decreases the obtainable steam temperature in boilers, thereby the efficiency in production of electricity is reduced. Deposit formation from the gas on superheater tubes are is generally referred to as fouling. LÄS MER

  7. 5. Strengthening and degradation mechanisms in austenitic stainless steels at elevated temperature

    Författare :Muhammad Farooq; Rolf Sandström; Göran Engberg; KTH; []
    Nyckelord :;

    Sammanfattning : With rapid economic developments and rising living standards, the demand for electricity all over the world is greatly increased. Due to high fuel costs, the steam boilers with higher steam temperature and pressure are needed to decrease the cost of power generation throughout the world extensively. LÄS MER