TY - JOUR
T1 - The effect of heat treatment and HCF performance on hydrogen trapping mechanism in Timetal LCB alloy
AU - Barel, E.
AU - Hamu, G. Ben
AU - Eliezer, D.
AU - Wagner, L.
PY - 2009/1/22
Y1 - 2009/1/22
N2 - Metastable β titanium alloys provide an advantageous balance of mechanical properties compared to other titanium alloys. Recently, a metastable low cost beta (LCB) Ti-based alloy has been developed by TIMET to be used as a high performance substitute for more classical materials in new non-aerospace technologies and has been marketed primarily for coil spring applications. However, in many of these technological applications, problems may arise when hydrogen comes in contact with titanium-based alloys. The main objective of this research is to investigate the combined influence of hydrogen and high cycle fatigue (HCF) performance on hydrogen's trapping mechanisms, microstructure and microhardness of a heat-treated Ti-6.8Mo-4.5Fe-1.5Al (Timetal LCB).Thermal desorption spectroscopy, supported by other experimental techniques such as X-ray diffraction, scanning and transmission electron microscopy, and microhardness tests, is used to determine the desorption characteristics and trapping parameters.
AB - Metastable β titanium alloys provide an advantageous balance of mechanical properties compared to other titanium alloys. Recently, a metastable low cost beta (LCB) Ti-based alloy has been developed by TIMET to be used as a high performance substitute for more classical materials in new non-aerospace technologies and has been marketed primarily for coil spring applications. However, in many of these technological applications, problems may arise when hydrogen comes in contact with titanium-based alloys. The main objective of this research is to investigate the combined influence of hydrogen and high cycle fatigue (HCF) performance on hydrogen's trapping mechanisms, microstructure and microhardness of a heat-treated Ti-6.8Mo-4.5Fe-1.5Al (Timetal LCB).Thermal desorption spectroscopy, supported by other experimental techniques such as X-ray diffraction, scanning and transmission electron microscopy, and microhardness tests, is used to determine the desorption characteristics and trapping parameters.
KW - HCF
KW - Thermal desorption spectroscopy (TDS)
KW - Timetal LCB alloy
UR - http://www.scopus.com/inward/record.url?scp=58049194061&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2007.12.104
DO - 10.1016/j.jallcom.2007.12.104
M3 - Article
AN - SCOPUS:58049194061
VL - 468
SP - 77
EP - 86
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 1-2
ER -