Compressive residual stress introduced by shot peening

Wang, Shengping; Li, Yongjun; Yao, Minyu; Wang, Renzhi

doi:10.1016/s0924-0136(97)00213-6

Cited by 221 publications

(110 citation statements)

References 1 publication

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“…Wang et al [15] shot peened several different steels and aluminium alloys with cast steel shots of 44-48 HRC hardness. They found linear relations between the maximum achievable compressive residual stresses and the materials yield and ultimate tensile strengths.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Shot Peening on Case Hardened SS2506 Gear Steel

Nordin

Alfredsson

2017

Exp Tech

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Shot peening is a manufacturing process commonly used to increase fatigue life in components for the automotive and aircraft industry. In this paper the effect of shot peening is described for a case hardened gear steel. For gears there are three main factors from shot peening that influence fatigue life: residual stresses, microstructure and surface roughness. The paper describes an experimental series where these parameters were measured for common industrial shot peening settings. The aim was to show how several different measurement techniques and results correspond to each other for certain shot peening parameters. The aim was also to gather experimental results that can be used for verification of shot peening simulations. To simplify measurements and decrease variation, flat steel plates were used as targets. Residual stress, full width at half maximum (FWHM), retained austenite, surface roughness/topology, hardness and Barkhausen noise were measured and related to microstructural changes. The mean indentation diameter was measured for individual shots at low coverage of each intensity which was used to determine the average velocity of the media. The mean diameter and hardness of the shot peening media was also determined.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Shot Peening on Case Hardened SS2506 Gear Steel

Nordin

Alfredsson

2017

Exp Tech

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“…High compressive residual stresses increased the fatigue property because it delays or stops the initiation and propagation of micro-cracks 12,13) . On the other hand, ne domain size and high dislocation density slowed down the dislocation gliding, to lead to an improvement on yield strength 14,15) , which was mentioned above.…”

Section: Resultsmentioning

confidence: 99%

Effect of Shot Peening on Residual Stress and Microstructure in the Deformed Layer of Inconel 625

Jiang

2017

Mater. Trans.

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Effect of shot peening on residual stress and microstructure in the deformed layer of Inconel 625 was investigated. Residual stress and microstructure including the domain size, micro strain and dislocation density was characterized by X-Ray diffraction method (XRD). The results showed that shot peening (SP) can signi cantly improve the compressive residual stress and micro hardness. Moreover, microstructure evaluation revealed that smaller domains were re ned and the higher micro strain was induced by shot peening process. Thus a high dislocation density in the near-surface of the deformed layers was induced. Dual shot peening process could optimize the distribution of both compressive residual stress and the microstructure, which will help with the material fatigue and corrosion resistance.

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“…Another effective parameter of ANN is Pearson correlation coefficient (PCC) that shows the rate of accuracy in network and reveals how well a network is trained [19]. PCC determined as: equal to the function G(g (1),g(2) … g (6)). The function G where PCC is shown by r ∑ x ∑ y are summation of the values for x and y ∑ xy is the summation of the products of paired values of x and y, and N is shown the number of pairs of values for x and y.…”

Section: Artificial Neural Networkmentioning

confidence: 99%

“…Shot peening is a cold working process in which the surface of a part is impinged with small spherical or cylindrical meida, aimed to create the beneficial compressive residual stresses (CRS), induce both the structure change near the surface layer of the material [1]- [3]. The CRS produced in the peened layer can prevent or greatly delay the crack propagation, and thus improve the fatigue life of the material [4]- [6].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Single and Dual Step Shot Peening Effects on Mechanical and Metallurgical Properties of 18CrNiMo7-6 Steel Using Artificial Neural Network

Maleki¹

2015

IJMMM

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Abstract-Shot peening is a process of cold working a part that increase its resistance to metal fatigue and some forms of stress corrosion. Shot peening causes plastic deformation in the surface of the peened part and leads some changes in mechanical and metallurgical properties of it. Artificial intelligence (AI) systems such as artificial neural networks (ANNs) have found many applications to predict and optimize the engineering problems in the last few years. In present study effects of SP on mechanical and metallurgical properties of 18CrNiMo7

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Compressive residual stress introduced by shot peening

Cited by 221 publications

References 1 publication

Experimental Investigation of Shot Peening on Case Hardened SS2506 Gear Steel

Experimental Investigation of Shot Peening on Case Hardened SS2506 Gear Steel

Effect of Shot Peening on Residual Stress and Microstructure in the Deformed Layer of Inconel 625

Investigation of Single and Dual Step Shot Peening Effects on Mechanical and Metallurgical Properties of 18CrNiMo7-6 Steel Using Artificial Neural Network

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