0
Research Papers

Effect of Shot Peening Process on the Fatigue Life of Shot Peened Low Alloy Steel

[+] Author and Article Information
Pham Quang Trung

Sustainable Developments in Civil Engineering
Research Group,
Faculty of Civil Engineering,
Ton Duc Thang University,
Room E001, 19 Nguyen Huu Tho Street,
Tan Phong Ward, District 7,
Ho Chi Minh City 756636, Vietnam
e-mail: phamquangtrung@tdt.edu.vn

Nay Win Khun

School of Mechanical and
Aerospace Engineering,
Nanyang Technological University,
N3.1-B2-01,
50 Nanyang Avenue,
639798, Singapore
e-mail: khunnaywin@yahoo.com

David Lee Butler

School of Mechanical and
Aerospace Engineering,
Nanyang Technological University,
N3.2-01-19,
50 Nanyang Avenue,
639798, Singapore
e-mail: mdlbutler@ntu.edu.sg

1Corresponding author.

Contributed by the Materials Division of ASME for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received November 8, 2016; final manuscript received July 19, 2017; published online September 13, 2017. Assoc. Editor: Ashraf Bastawros.

J. Eng. Mater. Technol 140(1), 011013 (Sep 13, 2017) (7 pages) Paper No: MATS-16-1325; doi: 10.1115/1.4037525 History: Received November 08, 2016; Revised July 19, 2017

Shot peening is well known as a surface deformation process which can induce compressive residual stresses into the subsurface of materials in order to improve the fatigue life. In this paper, the effects of the process conditions for both single and double shot peening on the fatigue life of AISI 4340 low alloy steel is investigated. The fatigue tests revealed that the shot peening process could significantly enhance the fatigue life of the treated components. However, a side effect of the process was an increase in surface roughness which was more prevalent under higher peening pressures and led to a reduction in the fatigue life. Therefore, to maximize the performance of the process, the peening parameters need to be carefully selected. Microstructure analysis of the shot peened parts indicated that the nucleation cracks or initiation cracks occurred in the subsurface at depths of 10–20 μm in the case of as-received samples but moved up to the free surface for the shot peened parts.

FIGURES IN THIS ARTICLE
<>
Copyright © 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Baiker, S. , 2014, Shot Peening: A Dynamic Application and Its Future, 4th ed., Metal Finishing News, Wetzikon, Switzerland.
Bagheri, S. , and Guagliano, M. , 2009, “ Review of Shot Peening Processes to Obtain Nanocrystalline Surfaces in Metal Alloys,” Surf. Eng., 25(1), pp. 3–14. [CrossRef]
Schijve, J. , 2009, Fatigue of Structures and Materials, Springer, Dordrecht, The Netherlands. [CrossRef]
Hassani-Gangaraj, S. M. , Moridi, A. , Guagliano, M. , Ghidini, A. , and Boniardi, M. , 2014, “ The Effect of Nitriding, Severe Shot Peening and Their Combination on the Fatigue Behavior and Micro-Structure of a Low-Alloy Steel,” Int. J. Fatigue, 62, pp. 67–76. [CrossRef]
Voorwald, H. J. C. , Silva, M. P. , Costa, M. Y. P. , and Cioffi, M. O. H. , 2009, “ Improvement in the Fatigue Strength of Chromium Electroplated AISI 4340 Steel by Shot Peening,” Fatigue Fract. Eng. Mater. Struct., 32(2), pp. 97–104. [CrossRef]
Bagherifard, S. , and Guagliano, M. , 2012, “ Fatigue Behavior of a Low-Alloy Steel With Nanostructured Surface Obtained by Severe Shot Peening,” Eng. Fract. Mech., 81, pp. 56–68. [CrossRef]
Miková, K. , Bagherifard, S. , Bokuvka, O. , Guagliano, M. , and Trško, L. , 2013, “ Fatigue Behavior of X70 Microalloyed Steel After Severe Shot Peening,” Int. J. Fatigue, 55, pp. 33–42. [CrossRef]
Trung, P. Q. , Khun, N. W. , and Butler, D. L. , 2016, “ Effects of Shot Peening Pressure, Media Type and Double Shot Peening on the Microstructure, Mechanical and Tribological Properties of Low-Alloy Steel,” Surf. Topogr.: Metrol. Prop., 4(4), p. 045001. [CrossRef]
ASTM, 2007, “ Standard Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Tests of Metallic Materials,” ASTM International, West Conshohocken, PA, Standard No. ASTM E466-07.
ISO, 2012, “ Geometrical Product Specifications (GPS)––Surface Texture: Areal––Part 2: Terms, Definitions and Surface Texture Parameters,” International Organization for Standardization, Geneva, Switzerland, Standard No. ISO 25178-2. https://www.iso.org/standard/42785.html
Khun, N. W. , Trung, P. Q. , and Butler, D. L. , 2016, “ Mechanical and Tribological Properties of Shot-Peened SAE 1070 Steel,” Tribol. Trans., 59(5), pp. 932–943. [CrossRef]
Vielma, A. T. , Llaneza, V. , and Belzunce, F. J. , 2014, “ Effect of Coverage and Double Peening Treatments on the Fatigue Life of a Quenched and Tempered Structural Steel,” Surf. Coat. Technol., 249, pp. 75–83. [CrossRef]
Trung, P. Q. , Khun, N. W. , and Butler, D. L. , 2017, “ New Approach to Estimate Coverage Parameter in 3D FEM Shot Peening Simulation,” Surf. Eng., 33(9), pp. 687–695. [CrossRef]
Bathias, C. , and Pineau, A. , 2013, Fatigue of Materials and Structures: Applications to Design and Damage, Wiley, Hoboken, NJ. [PubMed] [PubMed]
Bathias, C. , and Pineau, A. , 2010, Fatigue of Materials and Structures: Fundamentals, Wiley, Hoboken, NJ.

Figures

Grahic Jump Location
Fig. 1

The geometry of the specimens used for all the experimental tests

Grahic Jump Location
Fig. 2

(a) As-received, (b) S230-10, (c) S230-30, (d) S110-10, (e) S110-30, (f) DP-10-20, and (g) DP-30-20

Grahic Jump Location
Fig. 3

Average areal roughness parameters (Sa) of the shot peened AISI 4340 steel samples as a function of shot peening pressure

Grahic Jump Location
Fig. 4

The S–N curve of the as received AISI 4340 samples in the tension-compression axial loading fatigue tests

Grahic Jump Location
Fig. 5

The fatigue life of shot peened samples under the maximum stress of 550 MPa

Grahic Jump Location
Fig. 6

SEM micrographs showing the fatigue fracture surface of the as-received AISI 4340 samples at different magnifications: (a) overall view of the fracture surface, (b) the fatigue failure diagram, (c) close view of the initial defect at the magnification of 50 times, (d) close view of the first main initial fracture, (e) close view of the second main initial fracture, and (f) close view of the crack growth zone

Grahic Jump Location
Fig. 7

SEM micrographs showing the fatigue fracture surface of the shot peened AISI 4340 samples at different magnifications: (a) and (b) overall view of the fracture surface, and (c) and (d) close view of the one main initial fracture of the S110-50 and S110-80 samples, respectively

Grahic Jump Location
Fig. 8

SEM micrographs showing the fatigue fracture surface of the shot peened AISI 4340 samples at different magnifications: (a) and (b) overall view of the fracture surface, and (c) and (d) close view of the one main initial fracture of the S230-50 and S230-80 samples, respectively

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In