Influence of dislocation density on the residual stresses induced while machining Al/SiC/RHA hybrid composites | Zendy

Chintada Shoba | Zendy; N. Ramanaiah | Zendy; D. N. Rao | Zendy

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Influence of dislocation density on the residual stresses induced while machining Al/SiC/RHA hybrid composites

Author(s) -

Chintada Shoba,

N. Ramanaiah,

D. N. Rao

Publication year - 2015

Publication title -

journal of materials research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.832

H-Index - 44

eISSN - 2214-0697

pISSN - 2238-7854

DOI - 10.1016/j.jmrt.2014.12.010

Subject(s) - materials science , residual stress , composite material , machining , aluminium , dislocation , reinforcement , casting , residual , metallurgy , algorithm , computer science

The present study aims at finding the residual stresses on aluminum hybrid composites during turning operation. The composites with varying percentage by weight reinforcement of 2, 4, 6 and 8 RHA and SiC in equal proportions were fabricated using two stage stir casting process. X-ray diffraction was used to study the residual stresses on the surface layer of the machined surface. It was observed that the residual stresses generated during casting were considerably larger when compared to the stresses generated during machining of composites. It was also noticed that the residual stresses were found to decrease with the increase in the reinforcement and increases with the increase in cutting speed. The related mechanisms are explained and presented in this work

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