Essays about: "welding corrosion"

Showing result 1 - 5 of 14 essays containing the words welding corrosion.

  1. 1. Aging of FeCrAl Surface Coatings

    University essay from KTH/Materialvetenskap

    Author : Fadi Alsaifi; [2019]
    Keywords : Coating surface; FECRAL alloys; overlay welding; hvaf; thermal spraying; porosity; oxidation; corrosion MIG; TIG; HVOF;

    Abstract : This Thesis is about the aging of FECRAL surface coatings. In this thesis various substrates have been investigated such as 16 Mo3, 304, 347, Sanicro 31, 800HT, Nikrothal 80 and Kanthal APMT. READ MORE

  3. 2. Pitting Corrosion Evaluation of Post-Weld Cleaning Methods for Stainless Steel Welds

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Jimmy Holgersson; Klara Trydell; [2019]
    Keywords : ;

    Abstract : Welding stainless steel creates an oxide film, heat tint, on the surface and around the joint. It disrupts passivation and influence the corrosion resistance for the material. The result is often a decrease in pitting corrosion resistance for the joint and surrounding area. The heat tint is therefore commonly removed by post weld cleaning. READ MORE

  4. 3. Residual Stresses Induced by Welding in High Performance Steel

    University essay from Luleå tekniska universitet/Byggkonstruktion och brand

    Author : Rebecca Erlingsdotter Stridsman; Felicia Månsson; [2018]
    Keywords : Residual Stresses; High Performance Steel; Heat transfer; Abaqus; Welding;

    Abstract : Today, high performance steel as a construction material is treated as conventional steel in the European standards. Referring to the Eurocodes, the buckling curves for dimensioning of steel constructions only presents values up to steel grade S460, meaning that the full potential of high performance steel is not considered. READ MORE

  5. 4. Optimization of the AdBlue e vaporation module for Scania V8 engines

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Mattia Antoniotti; [2017]
    Keywords : CR; evaporation unit; urea deposits; heat fins; Urea; förångningsmodulen; ureaavlagringar; rörflänsar;

    Abstract : The aftertreatment techniques introduced to follow the emission legislations require a constant improvement process to comply with the gradually more stringent demands. SCR is the system used nowadays to deal with NOx emissions in most heavy-duty vehicles. READ MORE

  6. 5. Defect formation in laser welded steels after use of corrosion protection coating

    University essay from KTH/Materialvetenskap

    Author : Elias Repper; Amanda Carsbring; [2017]
    Keywords : Laser welding; steel; porosity; mid-section bulging; defects; corrosion protection;

    Abstract : This bachelor thesis was made in collaboration with Scania. The objective was to find the cause for defects found in some rear axle welds. It was known axle material was coated with anti-corrosive oil. Oils were examined through ICP-AES, and then compared to the composition found on the surface of the steel samples. READ MORE