|About this Abstract
||2011 TMS Annual Meeting & Exhibition
||Aluminum Alloys: Fabrication, Characterization and Applications
||Application of Neutron Diffraction in Analysis of Residual Stress Profile in the Cylinder Web Region of As-Cast V6 Aluminum Engine Block with Cast-In Iron Liners
||Dimitry G. Sediako, Ravi C. Ravindran, Camden R. Hubbard, Francesco D'Elia, Anthony Lombardi, Alan Machin, Robert Mackay
|On-Site Speaker (Planned)
||Dimitry G. Sediako
Nowadays aluminum alloys are widely used for production of gasoline engine blocks. In this study 319 aluminum is sand cast around Fe-liner cylinder inserts, then undergoes the T7 heat treatment process. One of the critical factors determining the quality of the final product is the type, level, and profile of residual stresses along the Fe liners (or extent of liner distortion) that are always present in a cast component.
In this study neutron diffraction was used to characterize residual stresses along the Al and the liners in the web region of the cast engine block. The strains were measured both in aluminum and iron in hoop, radial, and axial orientations and stresses were determined using generalized Hook’s law. The study gives invaluable insight on anticipated service properties of the engine block and demonstrates that neutron strain mapping is an efficient tool for optimization of manufacturing technologies.
||Planned: A print-only volume