2020•Diffusion and defect data, solid state data. Part B, Solid state phenomena/Solid state phenomenaRequires access

Effect of Ultrasonic Surface Rolling Process Parameters on Surface Properties of S30408 Austenitic Stainless Steel

Rong Juan Sui, Zhen Qin, Lei Sun, Cheng Bin Fang, Xiao Mei Chen

Abstract

S30408 austenitic stainless steel was treated by using hawking processing which is a type of ultrasonic surface rolling process (USRP). The effects of USRP parameters on surface roughness, surface hardness and corrosion resistance were investigated. Compared with the untreated specimen, the surface roughness and surface hardness is decreased by 87%, the surface hardness is increased by 51% and the corrosion rate reduces after USRP. The surface roughness decreases obviously as the step-size decreases, while the step-size has little effect on the surface hardness and corrosion resistance.

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Key concepts: Materials science, Surface roughness, Hardness, Metallurgy, Austenitic stainless steel, Austenite, Corrosion, Ultrasonic sensor