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Relaxation of Shot Peening Induced Residual Stresses in Ti-6Al-4V ...

Relaxation of Shot Peening Induced Residual Stresses in Ti-6Al-4V ...

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Res. Stress (MPa)<br />

200<br />

0<br />

-200<br />

-400<br />

-600<br />

-800<br />

0 0.05 0.1 0.15 0.2<br />

13<br />

Average 6-9N GBP<br />

6-9N GBP + 250C / 10 hrs.<br />

6-9N GBP + 325C / 10hrs.<br />

6-9N GBP + 400C / 10hrs.<br />

Depth (mm)<br />

Figure 4: In-depth residual stresses for the 6-9N GBP condition before and after isothermal exposure

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