A great many titanium alloys have two-fold ultimate tensile strength of a commercialy pure titanium, but such alloys ate few that can be used at elevated temperature and are creep resistant.
Alloys containing aluminium, haveing a considerably higher transformation range, and the presence of this element also has the important effect of increasing the strength of the & phase at elevated temperature. these alloys can be easily welded and are heat resistant. Then alloys containing aluminium can be substituted for stainless steel.
In this report, the present developing investigations with reference to the properties of Ti-Al alloys in U. S. A. and our results are described.
