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EFFECT OF COMPRESSIVE RESIDUAL STRESS FOR CORROSION PROPERTY OF SUP-9 STEEL USING AS SUSPENSION MATERIAL  

Park, K.D. (Department of Mechanical Engineering, Pukyong National University)
Ki, W.T. (Department of Mechanical Engineering, Pukyong National University)
Shin, Y.J. (Department of Mechanical Engineering, Pukyong National University)
Ryu, H.J. (Department of Mechanical Engineering, Pukyong National University)
Publication Information
International Journal of Automotive Technology / v.8, no.3, 2007 , pp. 343-349 More about this Journal
Abstract
One of the useful technologies for light-weightening of components required in the automobile and machine industry is to use high strength materials. To improve material properties, the carbonizing treatment, nitrifying treatment, and shot-peening method are representatively applied. However, the shot-peening method is generally used to remove surface defect on steel and to improve the fatigue strength of the surface. Benefits of shot-peening are increasing resistance against fatigue, stress corrosion cracking, fretting, galling, erosion and closing of pores. In this paper, the effect of shot-peening on the corrosion of SUP-9 steel immersed in a 3.5% NaCl solution and corrosion characteristics from heat treatment during the shot peening process has been investigated. The immersion test was performed on four kinds of specimens. Corrosion potential, the polarization curve, residual stress etc. Were analyzed from the experimental results.
Keywords
Shot peening; Corrosion; Corrosion potential; Corrosion current; Surface roughness; Corrosion rate;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 3  (Related Records In Web of Science)
Times Cited By SCOPUS : 1
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