About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Processing and Characterization
|
Presentation Title |
Understanding Pre-solidified Grains in Structural Castings of Nemalloy HE700 Experiments |
Author(s) |
Talha Aziz, Andre Phillion, Sumanth Shankar, Kumar Sadayappan |
On-Site Speaker (Planned) |
Talha Aziz |
Abstract Scope |
A new family of cast Al-Fe based eutectic alloy system with Zn and Mg as strengtheners through precipitation has been developed and validated for use in structural automotive applications. High vacuum high pressure die casting (HV-HPDC) was used in the casting of structural plates using the Nemalloy HE700 alloy. Typically, HPDC cast components exhibit anomalously large grains in the cast microstructure termed as pre-solidified grains (PSG). These PSG did not present themselves as a critical defect until structural castings were manufactured with this process route. The PSGs in the as-cast microstructure shall be characterized through quantitative metallography and the effects of varying shot interval delays shall be presented. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Solidification, Characterization |