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TECHNICAL PAPERS

Use of Cavitating Jet for Introducing Compressive Residual Stress

[+] Author and Article Information
H. Soyama, M. Saka

Department of Mechanical Engineering, Tohoku University, Aoba 01, Aramaki, Aoba-ku, Sendai 980-8579, Japan

J. D. Park

Department of Vehicle Engineering, Kyung-Nam Junior College, 167 Jurae-dong, Sasang-ku, Pusan 616-012, Korea

J. Manuf. Sci. Eng 122(1), 83-89 (Sep 01, 1999) (7 pages) doi:10.1115/1.538911 History: Received November 01, 1998; Revised September 01, 1999
Copyright © 2000 by ASME
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References

Soyama, H., Kato, H., and Oba, R., 1992, “Cavitation Observations of Severely Erosive Vortex Cavitation Arising in a Centrifugal Pump,” Proceedings of 3rd International Conference on Cavitation, Cambridge, U.K., pp. 103–110.
Rawers,  J. C., McCune,  R. A., and Dunning,  J. S., 1991, “Ultrasound Treatment of Centrifugally Atomized 316 Stainless Steel Powders,” Metall. Trans. A, 22A, pp. 3025–3033.
Blickwedel, H., Haferkamp, H., Louis, H., and Tai, P. T., 1987, “Modification of Material Structure by Cavitation and Liquid Impact and Their Influence on Mechanical Properties,” Proceedings of 7th International Conference on Erosion by Liquid and Solid Impact, Cambridge, U.K., pp. 31-1–31-6.
Soyama,  H., Yamauchi,  Y., Ikohagi,  T., Oba,  R., Sato,  K., Shindo,  T., and Oshima,  R., 1996, “Marked Peening Effects by Highspeed Submerged-Water-Jets—Residual Stress Change on SUS304—,” J. Jet Flow Eng., 13, pp. 25–32 (in Japanese).
Hirano,  K., Enomoto,  K., Hayashi,  E., and Kurosawa,  K., 1996, “Effects of Water Jet Peening on Corrosion Resistance and Fatigue Strength of Type 304 Stainless Steel,” J. Soc. Mater. Sci. Jpn., 45, pp. 740–745 (in Japanese).
Soyama, H., Lichtarowicz, A., and Lampard, D., 1998, “Useful Correlations for Cavitating Jet,” Proceedings of 3rd International Symposium on Cavitation, Grenoble, Vol. 2, pp. 147–156.
Tönshoff, H. K., Kroos, F., and Hartmann, M., 1995, “Water Peening—an Advanced Application of Water Jet Technology,” Proceedings of 8th American Water Jet Conference, Houston, TX, pp. 473–487.
Yamauchi,  Y., Soyama,  H., Adachi,  Y., Sato,  K., Shindo,  T., Oba,  R., Oshima,  R., and Yamabe,  M., 1995, “Suitable Region of High-Speed Submerged Water Jets for Cutting and Peening,” JSME Int. J., 38, pp. 245–251.
Thiruvengadam,  A., and Preiser,  H. S., 1964, “On Testing Materials for Cavitation Damage Resistance,” J. Ship Res., 8, pp. 39–56.
ASTM Designation G134-95, 1997, “Standard Test Method for Erosion of Solid Materials by a Cavitating Liquid Jet,” Annual Book of ASTM Standards, Vol. 03.02, pp. 537–538.
Brennen, C. E., 1995, Cavitation and Bubble Dynamics, Oxford University Press, Oxford.
Soyama,  H., Yamauchi,  Y., Sato,  K., Ikohagi,  T., Oba,  R., and Oshima,  R., 1996, “High-Speed Observation of Ultrahigh-Speed Submerged Water Jet,” Exp. Therm. Fluid Sci., 12, pp. 411–416.
Soyama, H. Lichtarowicz, A., and Momma, T., 1996, “Vortex Cavitation in a Submerged Jet,” FED-Vol. 236, Proceedings of Fluid Engineering Division Summer Meeting, ASME, New York, pp. 415–422.
Soyama,  H., 1998, “Material Testing and Surface Modification by Using Cavitating Jet,” J. Soc. Mater. Sci. Jpn., 47, pp. 381–387 (in Japanese).
Al-Obaid,  Y. F., 1990, “A Rudimentary Analysis of Improving Fatigue Life of Metals by Shot-Peening,” ASME J. Appl. Mech., 57, pp. 307–312.

Figures

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Cavitation intensity revealed by mass loss under several cavitating conditions (A1050P)
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Schematic diagram of impinging jets in air and water
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Formation of compressive residual stress under several cavitating conditions (SUS316)
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Mass loss and residual stress versus time of copper (C1100, σ=0.01,p1=20 MPa,sopt=20 mm)
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Peened aspect observed by SEM (SUS304, specimen No. 2, σ=0.01,p1=20 MPa,sopt=20 mm). (a) smooth surface of specimen (t=10 s); (b) cracks in the cross section of specimen (t=60 min).
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Maximum roughness, mass loss and residual stress versus time (SUS304, specimen Nos. 1 & 2, σ=0.01,p1=20 MPa,sopt=20 mm)
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Mass loss and residual stress versus time (SUS304, specimen No. 1, σ=0.01,p1=20 MPa,sopt=20 mm)
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Residual stress on the surface changing with exposure time to jet (SUS316, σ=0.01,p1=20 MPa,sopt=20 mm)
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Effective area of a cavitating jet shown by eroded area of an aluminum specimen (A1050P, σ=0.01,p1=20 MPa,sopt=20 mm,t=90 s)
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Residual stress distribution changed by a cavitating jet (SUS316, σ=0.01,p1=20 MPa,sopt=20 mm)
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Principal stresses of residual stress obtained from three normal stresses (SUS316, σ=0.01,p1=20 MPa,sopt=20 mm,t=10 s)
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Coordinates of stress measurements
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Test section of a cavitating jet apparatus

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