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TECHNICAL PAPERS

Introduction of Compressive Residual Stress Using a Cavitating Jet in Air

[+] Author and Article Information
Hitoshi Soyama

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

J. Eng. Mater. Technol 126(1), 123-128 (Jan 22, 2004) (6 pages) doi:10.1115/1.1631434 History: Received December 02, 2002; Revised September 02, 2003; Online January 22, 2004
Copyright © 2004 by ASME
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References

Figures

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Test apparatus for cavitating jet in air
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Mass loss Δm as a function of standoff distance sH with changing low-speed water jet injection pressure pL
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Mass loss Δm at optimum standoff distance as a function of the injection pressure of the low-speed water jet pL
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Ratio of the mass loss to power Δm/P as a function of the injection pressure of the low-speed water jet pL
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Comparison of a normal water jet with cavitating jets in air and water
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Erosion pattern of a normal water jet and cavitating jets in air and water: (a) normal water jet (Water jet in air); (b) cavitating jet in air; and (c) cavitating jet in water (water jet in water).
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Compressive residual stress introduced as a function of processing time per unit length by a cavitating jet in air compared with that from a cavitating jet in water
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Compressive residual stress introduced by a cavitating jet in air compared with those from a cavitating jet in water and shot peening
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Surfaces of the specimens: (a) not peened (Ra=0.06 μm); (b) cavitating jet in air (Ra=0.10 μm); and (c) shot peened (Ra=1.01 μm).
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Half width Δ2θ of X-ray diffraction profile changing with depth from surface

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