Evaluation of the residual stresses induced by shot peening on some sintered steels

Donzella, Giorgio; Gerosa, R.; Petrogalli, Candida; Rivolta, B.; Silva, G.; Beretta, Margherita Spampinato

doi:10.1016/j.proeng.2011.04.560

Cited by 12 publications

(6 citation statements)

References 7 publications

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“…Table (7) presents the conditions of shot peening time, slenderness ratio and column constant for 25 columns tested under compression and combined loading. It is clear that, after shot peening, the buckling performance is increased clearly in the 25min SPT but no further improvement in the buckling behavior is observed in 30min SPT and 35min SPT.…”

Section: Dynamic Shot Peening Buckling Column Resultsmentioning

confidence: 99%

“…al. [7] proposed the effect of shot peening treatment on Sintered steels plates were analyzed in terms of micro-structural and mechanical properties and residual stress profiles, residual stresses after the treatment were measured by means of the hole drilling technique and related to the mechanical properties and the surface densification of both steels, varying the nominal density.…”

Section: Introductionmentioning

confidence: 99%

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Determination the Optimum Shot Peening Time for Improving the Buckling Behavior of Medium Carbon Steel

M¹,

N.²,

Fadhel³

2014

ETJ

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The purpose of this paper is to estimate the optimum improvement of surface treatment on the dynamic buckling behavior of CK35 steel alloy due to shot peening based on the experimental results. Rotating circular column buckling test machine was used to evaluate the buckling life of column under compression and combined loading. The experimental results obtained show a favorable influence of shot peening treatment on mechanical properties and dynamic buckling behavior. A maximum significant life obtained at 25 min SPT (shot peening time) under dynamic buckling. The results showed that shot peening change the type of column from long to intermediate one based on Euler and Johnson formulas.

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Section: Dynamic Shot Peening Buckling Column Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Determination the Optimum Shot Peening Time for Improving the Buckling Behavior of Medium Carbon Steel

M¹,

N.²,

Fadhel³

2014

ETJ

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“…In general, heat treatments and plastic deformation, e.g. during running-in of a bearing, are the most relevant sources of compressive residual stresses [17]. Voskamp and Mittemeijer [18] concluded that applying a general state of compressive residual stresses improves the fatigue life of bearings through suppressing the possibility of yielding.…”

Section: Introductionmentioning

confidence: 99%

Determination of optimal residual stress profiles for improved rolling contact fatigue resistance

2019

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A theoretical framework is developed for the evaluation of favorable residual stress profiles, suppressing fatigue damage initiation in rolling contact fatigue. Non-metallic inclusions at the microstructure of bearings are one of the most important reasons for fatigue damage initiation since they act as stress risers. In order to evaluate the stress state around such inclusions at the micro-scale, macroscopic stress histories are determined by Hertzian contact theory at different depths below the raceway for a typical roller bearing. These stress distributions are then used as far-field stresses for a micro-scale model accounting for single inclusions of different geometries and orientations. Eshelby's method is used to relate far-field and local stresses in the vicinity of inclusions. The von Mises stress criterion is then used as a conservative estimator of crack initiation due to micro-scale plasticity. The effect of compressive residual stresses added to the axial and circumferential normal stress components at different depths is analyzed. The von Mises stress field around different inclusions at different depths is investigated in order to determine the most critical case in terms of microscale plastic deformation. Finally, an optimization process is carried out in order to determine the residual stresses that minimize the maximum observed von Mises stress as a function of depth.

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“…1 Shot peening is one of the mechanical surface treatment techniques used to create compressive residual stresses underneath the surface to reduce the effective local stresses and improve structural integrity and fatigue resistance in structures that are subjected to fatigue loading conditions such as offshore structures. 4 In another independent study, Yang et al created a nanostructured surface layer in H13 steel by shot peening and noticed that the hightemperature wear resistance was improved due to peening, and enhanced fatigue crack initiation and propagation behaviour was observed in the nanostructured layer due to compressive residual stresses. By using this technique, a compressive residual stress field appears in the surrounding elastically deformed material.…”

Section: Introductionmentioning

confidence: 99%

“…For example, Donzella et al have studied the effect of shot peening on mechanical properties, material microstructure, and residual stress profile in sintered steel plates. 4 In another independent study, Yang et al created a nanostructured surface layer in H13 steel by shot peening and noticed that the hightemperature wear resistance was improved due to peening, and enhanced fatigue crack initiation and propagation behaviour was observed in the nanostructured layer due to compressive residual stresses. 5 Gan et al have investigated the effect of shot peening on a T-welded structure made of Q345D steel 6 and found that the suitable peening intensity could improve fatigue life compared with an unpeened structure.…”

Section: Introductionmentioning

confidence: 99%

The influence of partial surface shot peening on fatigue crack growth behaviour of a high‐strength ferritic steel

Al-Turaihi

Mehmanparast

2017

Fatigue Fract Eng Mat Struct

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The effects of partial surface shot peening on the fatigue crack growth behaviour of a ferritic steel have been experimentally investigated in this paper. Dog‐bone specimens fabricated from Optim700QL were tested under tension‐tension fatigue loads. Three distinct extents of partial shot peening, with respect to the crack tip and specimen symmetry line, were tested. The fatigue crack growth results from these experiments have been compared with those obtained from the same specimen geometry but with no peening. The results show that the residual stress fields formed ahead of the initial notch tip due to the partial peening process play a significant role in the fatigue crack growth behaviour of the material and effectively result in accelerated crack propagation at the midwidth of the specimens. It has been shown in this study that partial peening can lead to a fatigue crack growth rate around twice as fast as that of the unpeened specimen.

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Evaluation of the residual stresses induced by shot peening on some sintered steels

Cited by 12 publications

References 7 publications

Determination the Optimum Shot Peening Time for Improving the Buckling Behavior of Medium Carbon Steel

Determination the Optimum Shot Peening Time for Improving the Buckling Behavior of Medium Carbon Steel

Determination of optimal residual stress profiles for improved rolling contact fatigue resistance

The influence of partial surface shot peening on fatigue crack growth behaviour of a high‐strength ferritic steel

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