Fatigue properties of gas nitrided austenitic stainless steel pre-treated with fine particle peening

The effect of shot peening on fatigue and corrosion behavior of 316L stainless steel in Ringer's solution

“…Therefore, the effect of impacts on the surface decreases and the following shot peening in a suitable time contributes to the reduction of heterogeneity and surface roughness. This behavior has been reported in other research and depends on material properties [15,16,23]. The image analysis results and scanning electron microscope photographs taken from the surface of specimens in different shot peening times are presented in Figs.…”

“…Onizawa et al reported that shot peening increases corrosion and fatigue resistance of high nitrogen austenitic stainless steel (RS561) [14]. A fine particle peening treatment prior to gas nitriding on 316L stainless steel exhibited higher fatigue resistance [15].…”

Corrosion Resistance of AISI 316Ti Stainless Steel Subjected to Shot Peening with and without Pickling in Various Chloride Environments

“…Onizawa et al [16] observed an increase in corrosion and fatigue resistance of the high nitrogen austenitic stainless steel (RS561) after shot peening was carried out. According to authors [17] a fine particle peening treatment on the 316L stainless steel prior to gas nitriding resulted in higher fatigue life In this study, changes in the surface parameters of the AISI 316Ti stainless steel finished by shot peening and shot peening + pickling are evaluated as well as their effect on the corrosion properties in various solutions (constant content of chlorides but different concentration of oxidizing ions). Various experimental methods were used to compare the corrosion behaviour of the tested surfaces during different control phases of the corrosion process.…”

Surface Modification of Carbon Steel by Atmospheric-Controlled IH-FPP Treatment Using Mixed Chromium and High-Speed Steel Particles

“…This may be attributed to the effect of the concurrent peening of hard highspeed tool steel particles (Vickers hardness = 900 HV), which are harder than Cr particles (600 HV), causing larger dislocations in the substrate 6,7) , followed by re nement of the crystalline grains [6][7][8][9][10][11]26) . Note that the treatment temperature, in the present study, is in a temperature range that allows recovery of the dislocations in carbon steel.…”

“…To improve these properties, high-strength materials are often subjected to surface modi cation. Fine particle peening (FPP) is expected to enhance corrosion resistance and tribological characteristics in addition to applying compressive residual stress [1][2][3][4][5] and improving fatigue strength through grain re nement [6][7][8][9][10][11] because the shot particle elements are transferred onto the surface to be treated [12][13][14][15][16][17] . Consequently, this treatment is a promising surface modi cation method for metals.…”