Investigation of nanostructured surface layer of severe shot peened AISI 1045 steel via response surface methodology

Ünal, Okan; Maleki, Erfan; Kocabaş, İbrahim; Yilmaz, Haluk; Hüsem, Fazıl

doi:10.1016/j.measurement.2019.106960

Cited by 12 publications

(3 citation statements)

References 54 publications

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“…Conventional shot peening refers to the transfer of energy through solid media, such as stainless-steel balls, ceramic balls, and so forth, different from laser shot peening, high-pressure water shot peening, and ultrasonic shot peening. During this mature cold-working process, a large number of small shots are accelerated by high-pressure air to repeatedly impact the metal surface, causing plastic deformation, gradient microstructure changes, , and hardening of the surface layer. − The effectiveness and repeatability of the shot peening process are verified by using a simple and rapid standard test: the Almen intensity test . It is well known that the Almen intensity is proportional to the shot kinetic energy .…”

Section: Introductionmentioning

confidence: 99%

Study on the Measurement Method of Shot Velocity and Mechanical Properties Based on Conventional Shot Peening

et al. 2022

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Shot velocity is a crucial control parameter that is closely related to the shot peening effect. However, the traditional measurement method of shot velocity corresponding to air pressure is complicated and cannot reflect shot peening parameters (impingement angle, etc.). This study proposes a robust method to measure shot velocity by coupling simulations and experiments. By developing the measurement method presented in this paper, we can quickly and easily derive the linear shot velocity formulas corresponding to a series of impingement angles. The validity is verified and characterized by the arc height, surface roughness, residual stresses, and existing literature. The measured shot velocity can be applied to predict the effect of shot peening by the simulation method in aerospace and automotive industries. In addition, optimization of process parameters in terms of microstructure, microhardness, and mechanical properties is discussed in the context of experiments. This study shows that shot velocity is linearly related to shot peening pressure and is affected by impingement angles. The air pressure and exposure time should not be too large, and no microcracks should be created. The ultimate strength reaches the maximum, and the yield strength is significantly improved.

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Section: Introductionmentioning

confidence: 99%

Study on the Measurement Method of Shot Velocity and Mechanical Properties Based on Conventional Shot Peening

et al. 2022

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Section: Introductionmentioning

confidence: 99%

“…SP is used mostly to introduce compressive RS 3 to improve the fatigue performance of specimens. 4 To date, many scholars have conducted systematic studies of SP-induced RS, leading to the development of other special types of SP, such as rigorous SP 5 and cavitation SP. 6 The strengthening mechanism of SP is the introduction of compressive RS within the SP impact layer, 7 and different SP conditions produce different RS fields.…”

Section: Introductionmentioning

confidence: 99%

Effects of shot-peening parameters, path, and sequence on residual stress of TC17 alloy

Zhang

Yao

Tan

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part B:

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Aeroengine parts are manufactured mostly from high-strength titanium alloys to meet aeroengine requirements, and shot peening is used to improve the fatigue life of such parts. Shot peening introduces compressive residual stress within the impact layer, and different shot-peening conditions produce different residual-stress fields. In this paper, the residual stress induced by shot peening is investigated. Different shot-peening parameters (air pressure, flow rate, nozzle speed, distance), paths, and sequences are planned for block and thin-plate specimens, and their effects on the consequent residual stress are investigated. The air pressure, flow rate, and nozzle speed have large effects on the residual stress, as do the shot-peening sequence and path, thereby providing technical support for the subsequent work of optimizing the residual stress after shot peening.

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Fatigue limit prediction and analysis of nano-structured AISI 304 steel by severe shot peening via ANN

Maleki

Ünal

2020

Engineering with Computers

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Investigation of nanostructured surface layer of severe shot peened AISI 1045 steel via response surface methodology

Cited by 12 publications

References 54 publications

Study on the Measurement Method of Shot Velocity and Mechanical Properties Based on Conventional Shot Peening

Study on the Measurement Method of Shot Velocity and Mechanical Properties Based on Conventional Shot Peening

Effects of shot-peening parameters, path, and sequence on residual stress of TC17 alloy

Fatigue limit prediction and analysis of nano-structured AISI 304 steel by severe shot peening via ANN

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