| Autor: |
Liu, Jie, Ventzke, Volker, Staron, Peter, Schell, Norbert, Kashaev, Nikolai, Huber, Norbert |
| Zdroj: |
Advanced Engineering Materials; Oct2012, Vol. 14 Issue 10, p923-927, 5p |
| Abstrakt: |
This paper describes a way to improve the microstructure and mechanical properties of welding seams by in situ and conventional post-weld heat treatments for laser beam welding of the Ti-45Al-5Nb-0.2C-0.2B alloy. The seams are crack-free with reduced longitudinal residual stress and higher elongation to fraction after post-weld heat treatment. The welding zone consists of α2 after welding, transforms to a massive γ during in situ post-weld heat treatment, and finally forms a convoluted microstructure after conventional heating. The phase composition across the welding zone is discussed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Plný text