| About this Abstract |
| Meeting |
2010 TMS Annual Meeting & Exhibition
|
| Symposium
|
Processing Materials for Properties
|
| Presentation Title |
Surface Peening Morphology Evaluation in Anodized Aluminum Alloy Rotors |
| Author(s) |
M Bilal Khan |
| On-Site Speaker (Planned) |
M Bilal Khan |
| Abstract Scope |
Correspondence between photoelastic stress and stress bearing capacity by shot peening on the tip of a light weight turbine rotor. SEM investigates the treated tip and the bulk of the rotor. EDS reveals the coarse features of silicon shots reinforced Al-alloy at the tip with anodized Al sealed with hot water in the bulk of the rear profile. AFM measures 3D flake surface topography of the treated tip. The hole-drill method predicts the distribution of stresses at the profile. Measurements are performed on an aerodynamic guide module under static pressure. High tensile residual stress in pressure die cast LM24 alloy convert to compressive mode by similar treatment. Pro Cast predicts the stress across the fin portion of the cast part. Radiography shows that Level 4 porosity exists in the thicker portion of the cast part due to the steep temperature gradient accompanied by the drastic dimensional changes, (~3.0-10 mm). |
| Proceedings Inclusion? |
Definite: A CD-only volume |