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Title: Residual stress and fatigue in cold-worked, hard-coated 2024-T351 aluminium alloy
Author: Asquith, David Thomas
ISNI:       0000 0001 3431 0283
Awarding Body: University of Sheffield
Current Institution: University of Sheffield
Date of Award: 2007
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Due to the continued demand for high performance, light-weight components in many areas of engineering, researchers strive to enhance characteristics to satisfy these needs. A synergistic approach to performance enhancement. of aluminium alloys has been investigated through combined cold-work and hard coating thereby affording increased performance in teIflls of both fatigue and surface hardness. With an' emphasis on coldwork processing, two different methods of introducing surface compressive residual stresses in this manner have been used. This leads to an interest in the influence of residual stress in the hard coated aluminium on its behaviour. In particular, the characterisation of residual stress states in the modified materials with specific-interest in the evolution of triaxial stresses with the treatment process steps has been studied. This is combined with materials characterisation in form of microstructure, micro-hardness, phase composition and corrosion behaviour to complete the evaluation of duplex treatments.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available