TY  - JOUR
AU  - Wang, Li
AU  - Lorenz, Uwe
AU  - Münch, Mathias
AU  - Stark, Andreas
AU  - Pyczak, Florian
TI  - Influence of alloy composition and thermal history on carbide precipitation in γ-based TiAl alloys
JO  - Intermetallics
VL  - 89
SN  - 0966-9795
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - PUBDB-2017-14129
SP  - 32 - 39
PY  - 2017
N1  - © Elsevier Ltd.
AB  - Carbide precipitation in TiAl alloys with different alloying element additions and thermal history was investigated by transmission electron microscopy and high energy X-ray diffraction. The results reveal that Nb addition in TiAl alloys does not increase the carbon solubility in the γ matrix significantly. With increasing carbon concentration in the alloys, a splitting of the P-type carbides takes place earlier in the course of ageing at 800 °C and the formation of H-type carbides is promoted. For a nearly single γ phase alloy Ti-51Al-5Nb-0.5C, H-type carbides are the thermodynamically stable phase. However, with decreasing Al concentration, P-type carbides become thermodynamically stable at low carbon concentration (below 1
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000407524300005
DO  - DOI:10.1016/j.intermet.2017.05.006
UR  - https://bib-pubdb1.desy.de/record/398565
ER  -