- Volume 25 Issue 6
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Variation of Rotating Bending Fatigue Characteristics by UNSM on Ti-6Al-4V
Ti-6Al-4V재의 UNSM처리에 의한 회전굽힘피로특성변화
Suh, Chang-Min;Pyoun, Young-Sik;Suh, Min-Soo
- Received : 2011.08.18
- Accepted : 2010.12.23
- Published : 2011.12.31
In order to analyze feasibility of replacing a conventional 6-mm Ti bar with a 5-mm bar, a series of rotating bending fatigue tests were carried out on Ti-6Al-4V bars by strengthening the fatigue performance using a special technique called UNSM (Ultrasonic Nanocrystal Surface Modification). The results of S-N curves clearly showed that the performance of the 5-mm titanium specimen was similar to that of the 6-mm specimen when the UNSM treatment was applied. The 5-mm treated specimen converged with small scattering band into the linear line of the non-treated 6-mm one. Below the fatigue life of
Rotating bending fatigue test;S-N curve;Ultrasonic nanocrystal surface modification technology;Compressive residual stress
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Supported by : 한국연구재단