High-cycle and very high-cycle bending fatigue strength of shot peened spring steel
- Title
- High-cycle and very high-cycle bending fatigue strength of shot peened spring steel
- Author
- 최낙삼
- Keywords
- High cycle fatigue; Very high cycle fatigue; High strength steel; Shot peening; Rotary bending fatigue test
- Issue Date
- 2021-11
- Publisher
- KOREAN SOC MECHANICAL ENGINEERS
- Citation
- Journal of Mechanical Science and Technology, 35(11), pp.4963-4973 Nov, 2021
- Abstract
- This paper examined bending fatigue strength of shot-peened spring steel
under the high cycle fatigue (HCF) and very high cycle fatigue (VHCF), and analyzed the
effects of shot-peening on the high strength spring steel through service life. Hourglass shape
specimens made of spring steel (Si-Cr alloys) were prepared for the rotary bending fatigue test.
Actual local stresses were quantitatively calculated to compensate for the applied stress
amplitudes, through which it was clarified that the shot-peening had strongly positive effects on
the HCF strength, but rather negative effect on the VHCF strength. The fracturing process
examination confirmed that most fish-eye fractures arose at sites deeper than the compressive
residual stress zone, which did not prevent the creation of the fish-eye. The fatigue strength
improvement in the VHCF range was scarcely expected as a result of the shot-peening
treatment.
- URI
- https://link.springer.com/article/10.1007/s12206-021-1015-0https://repository.hanyang.ac.kr/handle/20.500.11754/169869
- ISSN
- 1976-3824; 1738-494X
- DOI
- 10.1007/s12206-021-1015-0
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML