Effect of casting parameters and deformation on microstructure evolution of twin-roll casting magnesium alloy AZ31

2006 ◽  
Vol 16 ◽  
pp. s874-s877 ◽  
Author(s):  
Dong-ying JU ◽  
Xiao-dong HU
Keyword(s):  
Magnesium Alloy ◽  
Microstructure Evolution ◽  
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.

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

scholarly journals Analysis of Thermal Stress during of Twin-Roll Casting of Magnesium Alloy

2012 ◽  
Vol 217-219 ◽  
pp. 1928-1933
Author(s):  
Yu Cheng Zhang ◽  
Tian Yang Han ◽  
Zheng Yi Jiang ◽  
Dong Bin Wei
Keyword(s):  
Numerical Simulation ◽  
Thermal Stress ◽  
Magnesium Alloy ◽  
Process Parameters ◽  
Element Model ◽  
Spray Angle ◽  
Thermal Cracks ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll

The process of twin-roll casting including pouring, solidifying, rolling and cooling can be accomplished in a very short time. Consequently, some important process parameters in the twin-roll casting that are difficult to be obtained in experiment can be acquired using numerical simulation. In this paper, a numerical simulation based on a 2D finite element model of vertical twin-roll strip casting of magnesium alloy has been conducted, and the thermal stress fields are significantly discussed. The influences of key process parameters consisting of submerged nozzle depth and nozzle spray angle have been studied. The thermal cracks on the surface of the strip are analysed according to the thermal stress distribution.

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