Advances in Materials Science and Engineering / 2014 / Article / Tab 3

Review Article

A Study on Surface Modification of Al7075-T6 Alloy against Fretting Fatigue Phenomenon

Table 3

Effect of surface modification techniques on fretting damage.

Surface modification method Decrease the coefficient of frictionIntroduce compressive stressIncrease in hardnessIncrease in surface roughnessDurability or adhesionEconomyMitigation of fretting wearMitigation of fretting fatigue

NitridingD
Electroplating (Cr, Ni, etc.)D××D×××
Hard anodizingD×DD
Shot peening×
Laser shock peeningDDD××D
Deep rollingD
IBED hard film××××
PVD hard coatingD×D×D

D: depending on condition; ×: bad effect; : good effect; : very good effect, and ××: very bad effect.

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