In the recent times, several post-processing techniques are proposed to improve the fatigue strength of the welded joints. Methods like high-frequency mechanical peening (HFMP) effectively enhances the fatigue corrosion characteristics of the welded metals and alloys in the corrosive environments also. The improvement of fatigue strength by HFMP is based on the relieving residual stresses and severe plastic deformation. This paper investigates the corrosion damage life of the AISI 316 welded stainless steel joints operated in the sea climate. The HFMP strengthened and unstrengthened samples are placed in the salt spray chamber for 1400 h. From the metallographic studies, it is observed that the HFMP strengthening has a significant effect on the fatigue strength at 2 × 106 cycles and increases fatigue strength by 45% before treating with salt spray solution. After soaking in salt spray chamber, HFMP does not exhibit a significant improvement in fatigue cyclic life and corrosion resistance.

In enhanced temperature control in disc brakes, the problems regarding the heat generation in the disc brakes have been taken into account and their solutions are provided.The notification of the temperature raise of the disc brakes is made available to the driver when the temperature reaches above the safe value.In addition, the problem of heat generation is minimized by using the forced convection technique.It is concluded that the heat generated due to friction between the disc and the pad should be minimized to avoid the loss of friction coefficient between the disc and the pad and to avoid the temperature rise of various brake components and brake fluid vaporization due to excessive heating.