| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Influence of Specimen Preparation Methods on the Mechanical Properties and Superplastic Behavior of AA5083 Sheets |
| Author(s) |
Mohammad Dastgiri, Leo Kiawi, Iman Sari Sarraf, Daniel Green |
| On-Site Speaker (Planned) |
Mohammad Dastgiri |
| Abstract Scope |
Edge quality has a considerable effect on characterization of sheet materials. In this study, AA5083 sheet specimens were prepared using 4 different methods: shear, wire-EDM, waterjet cutting and conventional milling. Mechanical properties were determined from tensile tests carried out at 450°C and quasi-static strain rates. Optical microscopy and scanning electron microscopy were used prior and after tension tests to analyze the relation between the quality of the edge and mechanical properties. It was found that milled specimens resulted in considerably greater values of total and uniform elongation. Moreover, milling by removing material in smaller increments also leads to slightly greater elongation values. The microscopic investigation revealed that specimens whose edges have lower arithmetic mean roughness (Ra) have greater values of elongation. The SEM investigation also revealed that micro-cracks are more prevalent at the edges of specimens that have a greater surface roughness. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |