Determination of the Mechanical Properties of Friction Welded Tube Yoke and Tube Joint

Table 2

Results of fully reversed () torsional fatigue tests.

	Shear stress amplitude (MPa)	Cycles to failure	Failure location
1	72	254.897	HAZ-tube
2	72	307.043	HAZ-tube
3	72	326.675	HAZ-tube
4	72	382.393	HAZ-tube
5	72	341.364	HAZ-tube
6	72	428.187	HAZ-tube