Search for dissertations about: "Transvarestraint testing"

Found 2 swedish dissertations containing the words Transvarestraint testing.

  2. 1. Weldability of Precipitation Hardening Superalloys – Influence of Microstructure

    Author : Joel Håkan Andersson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hot cracking; GTAW; Transvarestraint testing; Varestraint testing; Gleeble testing; Solidification cracking; HAZ liquation cracking; Repair welding; Strain age cracking; EBW; DSC thermal analysis;

    Abstract : Superalloys and in particular the precipitation hardened Ni-based superalloys havealways been used extensively in the hot sections of jet engines. Large hot structuralengine components with complex geometry have preferably been cast as single piececomponents since the large scale vacuum investment casting process becameavailable about fifty years ago. READ MORE

  4. 2. Modelling microstructural changes in pulsed weldments

    Author : P. Ravi Vishnu; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material Mechanics; Materialmekanik;

    Abstract : Microstructural changes in pulsed weldments have been studied in mild steel, a quenched and tempered steel and in two austenitic stainless steels. A heat flow model has been developed to compute the thermal cycles at different locations in the pulsed welds. READ MORE