Ultrasonic cavitation peening is a peening process utilizing the high pressure induced by ultrasonic cavitation in liquids (typically water). In this paper, ultrasonic cavitation peening on stainless steel and nickel alloy has been studied. The workpiece surface microhardness, the microhardness variation at different depths, the workpiece surface profile, roughness, and morphology have been measured or observed. It has been found that for the studied situations, ultrasonic cavitation peening (at a sufficiently high horn vibration amplitude) can obviously enhance the workpiece surface hardness without significantly increasing the surface roughness. Under the investigated conditions, a surface layer of more than around 50 μm has been hardened under a horn vibration amplitude of ∼20 μm.
Ultrasonic Cavitation Peening of Stainless Steel and Nickel Alloy
Materials and Aerospace Engineering,
and Industrial Engineering,
Manuscript received March 22, 2013; final manuscript received September 14, 2013; published online December 30, 2013. Assoc. Editor: Donggang Yao.
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Gao, Y., Wu, B., Liu, Z., Zhou, Y., Shen, N., and Ding, H. (December 30, 2013). "Ultrasonic Cavitation Peening of Stainless Steel and Nickel Alloy." ASME. J. Manuf. Sci. Eng. February 2014; 136(1): 014502. https://doi.org/10.1115/1.4025756
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