Shot Peening And Its Impact On Fatigue Life Of Engineering Components

Author:  P.K. Pandey and M. N. Deshmukh
Source:  Conf Proc: ICSP & BC - 2
Doc ID:  2001149
Year of Publication:  2001
Abstract:  
Shot Peening is a method of cold working in which compressive stresses are induced in the exposed surface layers of metallic parts by impingement of a stream of shots directed at the metal surface at high velocity under controlled conditions. The shot peening can be applied to various materials and their weldment like steels, cast steels, cast iron, Cu alloys, Al alloys. Ti allows some plastics. The major applications are related to improvement and restoration of fatigue life and reliability to improvment and restoration of fatigue life and relieabillity of machine elements by increasing their fatigue strength, straightening and forming machine elements (metal parts), pretreatment prior to plating, pretreatment for components to be metallized or coated with plastics, enhancement of resistance to stress corrosion cracking and corrosion fatigue etc. In the review presented, the role of shot peening on the service life of engineering components and materials subjected to cyclic loading and also to agrgressive environment has been discussed.