On the fatigue behavior of differently deep rolled conditions of SAE 1045 in the very-high-cycle fatigue regime

Comparison of SP, SMAT, SMRT, LSP, and UNSM Based on Treatment Effects on the Fatigue Properties of Metals in the HCF and VHCF Regimes

“…Additionally, internal crack failures occurred at significantly higher fatigue stress levels on rolling-treated specimens compared to untreated specimens at a load cycle N f = 10 7 . In the study by Saalfeld et al [19], the fatigue test results showed that SMRT significantly improved the fatigue properties of SAE 1045 steel specimens in the HCF and VHCF regimes in a uniaxial fatigue test. The research from Dong et al [1] indicated that SMRT had strong positive effects on axial-load fatigue properties of friction-stir welded (FSW) 7075-T651 aluminum specimens in HCF and VHCF regimes.…”

“…Saalfeld et al [19] used another type of surface rolling tool to treat test specimens and added an induction heater to heat the specimens while performing the rolling process. Oevermann et al [20] used the same surface rolling tool as Saalfeld et al [19] but applied liquid nitrogen to maintain cryogenic conditions while treating test specimens. For non-symmetrical workpieces, the material can still be treated with surface rolling by using a moveable ball or roller to press against the treated surface [21].…”

“…Delgado et al [18] also described a similar surface rolling setup using a surface rolling machine, where three balls spaced 120 • apart-instead of one ball-were used to treat the hourglass specimen surfaces. Saalfeld et al [19] used another type of surface rolling tool to treat test specimens and added an induction heater to heat the specimens while performing the rolling process. Oevermann et al [20] used the same surface rolling tool as Saalfeld et al [19] but applied liquid nitrogen to maintain cryogenic conditions while treating test specimens.…”

Molecular dynamics study on defect evolution during the plastic deformation of nickel-based superalloy GH4169 single crystal under different rolling temperatures

“… 16 For example, Banh et al 12 designed and manufactured a new ball grinding tool for improving the surface quality and hardness of the machined surface and determined the optimal ball rolling conditions. Saalfeld et al 17 conducted deep rolling research on steel SAE 1045 and found that the residual stress relaxation behavior under deep rolling material conditions is strongly affected by the cyclic yield strength of each material state, so it is related to cyclic plastic deformation. Rodríguez et al 18 conducted a complete experiment and analysis of deep rolling, and they confirmed that it can not only improve the surface quality but also have a positive impact on the compressive residual stress.…”

Consequences of Deep Rolling at Elevated Temperature on Near-Surface and Fatigue Properties of High-Manganese TWIP Steel X40MnCrAl19-2

“…As a result of the pronounced work-hardening ability detailed above, HMnS are suitable candidate materials for mechanical surface treatment processes. However, only a few studies investigating the effect of mechanical surface treatments and, thus, the effect of residual stresses, hardness and roughness on the SI of HMnS TWIP and TRIP steels, can be found in the literature [47,[55][56][57]. In a previous study, the evolution of residual stresses, microstructure and cyclic performance of the X40MnCrAl19-2 TWIP steel after deep rolling at RT, −196 and 200 • C, was investigated by the authors' group [39].…”