Effect of severe shot peening on microstructure and fatigue strength of cast iron
Source abstract
Abstract
Effect of nanocrystalline surface obtained by severe plastic deformation on fatigue strength of nodular cast iron has been studied in the paper. Surface nanocrystallization has been applied by means of standard air blast shot peening equipment with particularly severe parameters compared to the usual ones used for similar classes of material. Microscopy observation, microhardness, surface roughness and X-ray diffraction measurements were carried out to characterize the treated surface of differently shot peened specimens. Rotating bending fatigue tests were performed to investigate the effects of process parameters on fatigue behaviour. The results indicate a sensible fatigue strength improvement obtained through application of severe shot peening with respect to conventional shot peening, notwithstanding the specimen’s very high surface roughness due to high energy impacts. The obtained results are critically discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Surface Treatment and Residual Stress · Erosion and Abrasive Machining · Metal Alloys Wear and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
Show source-provided references
1. Almen · 1963
2. Marsh · 1993
3. Microstructure and fatigue behaviour of cold spray coated Al505210.1016/j.actamat.2012.08.020 ↗
4. Schulze · 2006
5. Review of shot peening processes to obtain nanocrystalline surfaces in metal alloys10.1179/026708408X334087 ↗
6. Grain size effects on the fatigue response of nanocrystalline metals10.1016/S1359-6462(03)00393-2 ↗
7. Influences of surface grain size and gradient variation along depth on fatigue life of metallic materials10.1016/j.matdes.2012.07.026 ↗
8. Enhancement of fatigue and corrosion properties of pure Ti by sandblasting10.1016/j.msea.2006.04.024 ↗
9. Fatigue life improvement through surface nanostructuring of stainless steel by means of surface mechanical attrition treatment10.1016/j.scriptamat.2006.01.049 ↗
10. The effect of nanostructured surface layer on the fatigue behaviors of carbon steel10.1016/j.apsusc.2008.10.037 ↗
11. Enhanced fatigue resistance of a nickel-based alloy induced by surface nanocrystallization and hardening process10.1080/09500830500311705 ↗
12. A study of the effect of nanostructured surface layers on the fatigue behaviors of a C-2000 super alloy10.1016/j.msea.2006.10.150 ↗
13. Analysis of fatigue resistance improvements via surface severe plastic deformation10.1016/j.ijfatigue.2007.10.010 ↗
14. Effect of residual stresses on fatigue strength of severely surface deformed steels by shot peening10.1154/1.3133132 ↗
15. Fatigue properties of nanocrystallized surfaces obtained by high energy shot peening10.1016/j.proeng.2010.03.181 ↗
16. A numerical model of severe shot peening (SSP) to predict the generation of a nanostructured surface layer of material10.1016/j.surfcoat.2010.05.035 ↗
17. Fatigue behaviour of a low-alloy steel with a nanostructured surface obtained by severe shot peening10.1016/j.engfracmech.2011.06.011 ↗
18. Fatigue behavior of notched steel specimens with nanocrystallized surface obtained by severe shot peening10.1016/j.matdes.2012.09.025 ↗
19. Effect of ultrasonic nanocrystal surface modification on the fatigue behaviors of plasma-nitrided S45C steel10.1016/j.surfcoat.2012.10.063 ↗
20. On the shot peening surface coverage and its assessment by means of finite element simulation: a critical review and some original developments10.1016/j.apsusc.2012.07.017 ↗
21. ISO 4278, Geometrical product specifications (GPS)–surface texture: profile method–terms, definitions and surface texture parameters, 1st ed., 1997.
22. Dixon · 1969
23. The up-and-down method with small samples10.1080/01621459.1953.10483472 ↗
24. Saitoh H, Ochi T, Kubota M. Formation of surface nanocrystalline structure in steels by air blast shot peening. In: Proceedings of the 10th international conference on shot peening, Japan; 2008. p. 488–93.
25. Grain refinement in copper under large strain deformation10.1080/01418610108216659 ↗
26. Developing of SPD processing and enhanced properties in bulk nanostructured metals10.1016/S1359-6462(01)00783-7 ↗
27. Formation of nanocrystalline surface layers in various metallic materials by near surface severe plastic deformation10.1016/j.stam.2003.10.015 ↗
28. Fecht · 1994
29. Numerical and experimental analysis of surface roughness generated by shot peening10.1016/j.apsusc.2012.03.111 ↗