Theoretical Prediction of Residual Stress Induced by Shot Peening and Experimental Verification for Carburized Steel.

In this study, we’ve used carburized-quenched-tempered steels that received shot-peening process with different shot grain sizes and evaluated variation of surface property of the steels. As a result of study, it is demonstrated that the fatigue life of carburized steels can be prolonged significantly by increasing surface hardness and compressive residual stress and by reducing surface roughness and abnormal carburized case depth at superficial layer, which we’ve investigated in the study.

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Effect of initial surface treatment on shot peening residual stress field: Analytical approach with experimental verification

International Journal of Mechanical Sciences ◽

10.1016/j.ijmecsci.2018.01.022 ◽

2018 ◽

Vol 137 ◽

pp. 171-181 ◽

Cited By ~ 15

Author(s):

Khalil Sherafatnia ◽

Gholam Hossein Farrahi ◽

Amir Hossein Mahmoudi

Keyword(s):

Residual Stress ◽

Stress Field ◽

Surface Treatment ◽

Experimental Verification ◽

Shot Peening ◽

Analytical Approach ◽

Initial Surface ◽

Residual Stress Field

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Shot peening parameters optimization based on residual stress-induced deformation of large fan blades

Thin-Walled Structures ◽

10.1016/j.tws.2021.107467 ◽

2021 ◽

Vol 161 ◽

pp. 107467

Author(s):

Jiyin Zhang ◽

Changfeng Yao ◽

Liang Tan ◽

Minchao Cui ◽

Zhiqiang Lin ◽

...

Keyword(s):

Residual Stress ◽

Shot Peening ◽

Parameters Optimization

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A review of inducing compressive residual stress – shot peening; on structural metal and welded connection

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/80/1/012033 ◽

2017 ◽

Vol 80 ◽

pp. 012033 ◽

Cited By ~ 3

Author(s):

S Kanchidurai ◽

P A Krishanan ◽

K Baskar ◽

K Saravana Raja Mohan

Keyword(s):

Residual Stress ◽

Shot Peening ◽

Compressive Residual Stress ◽

Structural Metal ◽

Welded Connection

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Prediction of Residual Stress Relaxation of Shot Peened 2024-T351 Aluminum Alloy: Part 1

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.462-463.1355 ◽

2011 ◽

Vol 462-463 ◽

pp. 1355-1360

Author(s):

Omar Suliman Zaroog ◽

Aidy Ali ◽

Sahari B. Barkawi

Keyword(s):

Residual Stress ◽

Stress Relaxation ◽

Shot Peening ◽

Applied Load ◽

Cold Work ◽

Cyclic Tests ◽

Initial State ◽

Loading Cycle ◽

Residual Stress Relaxation ◽

Alloy Part

It is important to account for residual stress relaxation phenomenon in the design of the component. Specimens of 2024-T351 aluminium alloy were used in this study. The specimens were shot peened under three different shot peening intensities. Cyclic tests for two load magnitudes were performed for 1, 2, 10, 1000 and 10000 cycles. Residual stresses, microhardness and the cold work percentage were measured at initial state and after each loading cycle for the three shot peening intensities and for the two loads. The study revealed that most of the drop in the residual stress, microhardness and cold work happened in the first cycle are dependent on the applied load.

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Surface Modification Analysis after Shot Peening of AA 7075 in Different States

Materials Science Forum ◽

10.4028/www.scientific.net/msf.768-769.519 ◽

2013 ◽

Vol 768-769 ◽

pp. 519-525 ◽

Cited By ~ 1

Author(s):

Sebastjan Žagar ◽

Janez Grum

Keyword(s):

Residual Stress ◽

Surface Layer ◽

Residual Stresses ◽

Aluminium Alloy ◽

Shot Peening ◽

Fatigue Testing ◽

Stress Profile ◽

Treatment Conditions ◽

Stress Profiles ◽

Compressive Residual Stresses

The paper deals with the effect of different shot peening (SP) treatment conditions on the ENAW 7075-T651 aluminium alloy. Suitable residual stress profile increases the applicability and life cycle of mechanical parts, treated by shot peening. The objective of the research was to establish the optimal parameters of the shot peening treatment of the aluminium alloy in different precipitation hardened states with regard to residual stress profiles in dynamic loading. Main deformations and main residual stresses were calculated on the basis of electrical resistance. The resulting residual stress profiles reveal that stresses throughout the thin surface layer of all shot peened specimens are of compressive nature. The differences can be observed in the depth of shot peening and the profile of compressive residual stresses. Under all treatment conditions, the obtained maximum value of compressive residual stress ranges between -200 MPa and -300 MPa at a depth between 250 μm and 300 μm. Comparison of different temperature-hardened aluminium alloys shows that changes in the Almen intensity values have greater effect than coverage in the depth and profile of compressive residual stresses. Positive stress ratio of R=0.1 was selected. Wöhler curves were determined in the areas of maximum bending loads between 30 - 65 % of material's tensile strength, measured at thinner cross-sections of individual specimens. The results of material fatigue testing differ from the level of shot peening on the surface layer.

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