Three-Point Bending Fatigue Test of TiAl6V4 Titanium Alloy at Room Temperature

Table 2

Fatigue test results with used specimen numbering.

Spec. no.	Number of cycles Nf	Mean stress σm (MPa)	Stress amplitude σa (MPa)	Maximum bending stress σO (MPa)	Notice
1	2.0 × 10^7	613.0	287.0	901.0	Polished, run-out
2	1.8 × 10^7		389.0	1003.0	Polished, break
3	1.7 × 10^6		493.0	1107.0	Polished, break
4	1.6 × 10^5		552.0	1166.0	Polished, break
5	2.0 × 10^7		450.0	1064.0	Polished, run-out
6	1.2 × 10^6		477.0	1090.0	Polished, break
7	1.6 × 10^6		460.0	1074.0	Polished, break
8	2.0 × 10^7		454.0	1068.0	Polished, run-out
9	5.7 × 10^6		459.0	1073.0	Polished, break
10	1.2 × 10^7		455.0	1069.0	Polished, break
11	5.3 × 10^4		455.0	1068.0	Non-polished, not included in S-N curve
12	6.4 × 10^4		459.0	1073.0	Non-polished, not included in S-N curve