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Title: Influence Of Shot-peening On Fatigue And Corrosion-fatigue Behavior Of Structural Steel
Author: Kirk, D. and Jarrett, M.
Source: Conf Proc: ICSP-2, (p.133-142)
Publication year 1984
Document number: 1984037
Number of pages: 10
Abstract:
The influence of surface finish upon the fatigue/corrosion-fatigue behaviour of a weldable grade of structural steel has been studied in both air and artificial sea water.
The results have shown shot-peening to have a harmful effect at high applied stress, while showing an increasingly beneficial effect at lower applied stress, in both air and
in sea water. The increase in corrosion-fatigue life is thought to be due primarily to an extension of the initiation stage of the fracture process.
X
-ray residual stress analysis performed on
modified test specimens has indicated the presence of three distinct regions of surface stress relaxation during cycling.
Descriptors: Corrosion-fatigue; Structural steel; Shot-peening; Residual stress
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