Fatigue Enhancement of Ti-6Al-4V via Ex-situ Warm-Shot-Peening (WSP)

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Fatigue Enhancement of Ti-6Al-4V via Ex-situ Warm-Shot-Peening (WSP)
Title:
Fatigue Enhancement of Ti-6Al-4V via Ex-situ Warm-Shot-Peening (WSP)
Other Titles:
Lecture Notes in Mechanical Engineering
Keywords:
Publication Date:
22 August 2021
Citation:
Zhang, Z., Seng, D. H. L., Lim, S. H., Cheong, A. K. H., Wang, S., & Pan, J. (2021). Fatigue Enhancement of Ti-6Al-4V via Ex-situ Warm-Shot-Peening (WSP). Proceedings of the 2nd International Conference on Advanced Surface Enhancement (INCASE 2021), 58–61. doi:10.1007/978-981-16-5763-4_13
Abstract:
To explore the potential beneficial effect beyond shot peening (SP)’s conventional performance, ex-situ warm shot peening (WSP) of Ti-6Al-4V coupons have been carried out. The coupons were pre-heated to 200 and 400 oC, before they were immediately transferred into a SP booth for shot-peening. While high cycle fatigue (HCF) tests did not detect a favorable improvement in fatigue life at high (0.9F0.2) and medium loadings (0.7F0.2), a significant increase in cycle-to-failure (Nf) in low loading (0.5F0.2) was observed when the ex-situ WSP temperature was raised to 200 and further to 400 oC. Center hole drilling and electron backscatter diffraction (EBSD) were employed to unveil the mechanism for such fatigue improvement.
License type:
Publisher Copyright
Funding Info:
This research / project is supported by the Agency for Science, Technology and Research (A*STAR) - Singapore Aerospace Program
Grant Reference no. : A1715a00079

This research / project is supported by the Agency for Science, Technology and Research (A*STAR) - Structural Metal Alloy Program
Grant Reference no. : A18b1B0061

This research / project is supported by the Agency for Science, Technology and Research (A*STAR) - Accelerated Materials Development for Manufacturing
Grant Reference no. : A1898b0043
Description:
This is a post-peer-review, pre-copyedit version of an article published in Lecture Notes in Mechanical Engineering. The final authenticated version is available online at http://dx.doi.org/10.1007/978-981-16-5763-4_13
ISSN:
2195-4364
2195-4356
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