| About this Abstract |
| Meeting |
Liquid Metal Processing & Casting Conference (LMPC 2022)
|
| Symposium
|
Liquid Metal Processing & Casting Conference (LMPC 2022)
|
| Presentation Title |
Characterization of the Inclusion-induced Surface Defects in Thin-gauge 1xxx, 3xxx and 5xxx Series Al-based Products |
| Author(s) |
Pascal Gauthier, Mousa Javidani, Tao Wang |
| On-Site Speaker (Planned) |
Pascal Gauthier |
| Abstract Scope |
Thin-gauge aluminum alloy products for automotive and packaging applications are highly susceptible to surface pin holes/tearing defect. This type of issue is often related to the casting process defects (e.g., inclusions, oxides, etc.) and/or downstream rolling defects (e.g., roughness, mechanical wear, and debris in the rolling mill surface).
This research aims to study the formation mechanism of inclusion-based surface defects in the thin-gauge Al alloy (e.g., 1xxx, 3xxx and 5xxx) products. It is found that these defects are formed due to the premature degradation of silicate-based insulation refractories. In addition, the improper use of the alumina-based refractories can create inconsistency during service, which ultimately results in the similar inclusion-induced pinhole issue in the sheet products. In this study, the optical microscopy and SEM were used to identify the inclusions and their origins from the upstream refractories used in the casthouse. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |