Phase transformations and stress evolution during laser beam welding and post heat treatment of TiAl-alloys
Citation Link: https://doi.org/10.15480/882.1245
Publikationstyp
Doctoral Thesis
Date Issued
2015
Sprache
English
Author(s)
Advisor
Referee
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2015-06-18
TORE-DOI
TORE-URI
It is demonstrated that, with application of several preheating and post weld heat treatments, the welding approach developed here is capable of producing a sound joint with an optimised microstructure, low residual stress and good mechanical properties. An understanding of phase transformation during welding and a new concept of grain refinement are explained.
DDC Class
620: Ingenieurwissenschaften