The Microstructure and Texture Development During Twin Roll Casting and Rolling of Magnesium Alloy AZ31

2015 ◽  
pp. 471-476 ◽  
Author(s):  
Jan Bohlen ◽  
Sangbong Yi ◽  
José Victoria-Hernández ◽  
Norbert Schell ◽  
Bernd Schwebke ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Texture Development ◽  
Alloy Az31 ◽  
Twin Roll Casting ◽  
Magnesium Alloy Az31 ◽  
Roll Casting ◽  
Twin Roll

The Microstructure and Texture Development during Twin Roll Casting and Rolling of Magnesium Alloy AZ31

2015 ◽  
pp. 471-476 ◽  
Author(s):  
Jan Bohlen ◽  
Sangbong Yi ◽  
José Victoria-Hernández ◽  
Norbert Schell ◽  
Bernd Schwebke ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Texture Development ◽  
Alloy Az31 ◽  
Twin Roll Casting ◽  
Magnesium Alloy Az31 ◽  
Roll Casting ◽  
Twin Roll

Thermal Flow Simulation and Concave Type Slot Nozzle Design for Twin Roll Casting of Magnesium Alloy AZ31

2007 ◽  
Vol 539-543 ◽  
pp. 5037-5043 ◽  
Author(s):  
Xiao Dong Hu ◽  
Dong Ying Ju ◽  
Hong Yang Zhao
Keyword(s):  
Magnesium Alloy ◽  
Flow Behavior ◽  
Flow Simulation ◽  
Thermal Flow ◽  
Slot Nozzle ◽  
Alloy Az31 ◽  
Twin Roll Casting ◽  
Magnesium Alloy Az31 ◽  
Roll Casting ◽  
Twin Roll

Twin- roll casting of magnesium alloys is a rapidly solidifying process, which can directly produce thin strips from molten metal. In this paper, based on a pilot vertical type twin-roll caster, 3D models of twin-roll casting process were used for simulation of thermal flow and solidification on depending of casting speed, molten pool level and pouring temperature. The effect of side dams on thermal flow behavior was also considered. Based on the analyzed results, a proper concave slot nozzle was designed to compensate temperature variation across the width of strip. Comparing with parallel type slot nozzle, it can adjust temperature distribution along the roll width continuously by adopting proper concave curves, which is more flexible than rectification boards delivery system. Strips of magnesium alloy AZ31 were produced in the pilot caster with the concave slot nozzle. The experiments show that surface quality of as cast strip was improved by using the new type of nozzle.

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