Study of Heat Treating on Twin-roll Rapid Solidification AZ91 Magnesium Alloy Ribbons;

In the present study, the AZ91 magnesium alloy strip chip is prepared by twin-roll rapid solidification technique, it is find that the mi.

The development and the characterization of twin-roll thin strip continuous casting are reviewed.

The macroscopic heating, transmiting solute model and the microscopic model of solidification microstructure forming on twin roll thin strip casting process have been developed by using stream line interface, and the coupling between macroscopic and microscopic aspects has been carried out by solid fraction and macro micro time step.

As a new sort of near net shape continuous casting technology, twin roll continuous casting technology is widely attended by domestic and overseas researchers in recent years.

But for twin roll casting alloy,the microstructure changed from dendrite to fibrous deformation structure after several passes hot rolling at 350℃.

In order to improve the forming property of twin roll casting magnesium alloy sheets AZ31B, homogenizing treatment was carried out at different annealing temperature (300,350,400℃) and the holding time (1,2,3 h).

The influence of heating temperature in annealing treatment on morphology of eutectic carbide in twin roll casting strip of high speed steel was studied.

Microstructure of Twin-roll Casting Magnesium Alloy Strip;

The study of new technology on producing wrought magnesium alloy thin strip by twin-roll casting;

On the conditions that a foundation of rotational coordinate system was set up with a virtual system introduced in,a discriminant is derived for the position of the welding point of solidification layers in the process of twin-roll casting,i.

A sort of rare earth Mg-based system hydrogen storage alloys with AB3-type was prepared by double-roller rapid quenching method.

The nanocrystalline AB_5 type rich-lanthanum rare earth hydrogen storage alloys were prepared by double-roller rapid quenching.

Grain refinement of high-speed steel on twin-roll strip casting;

Establishment of process data acquisition system of twin-roll strip casting and results analysis;

Finite element numerical simulation on the temperature fields of the twin-roll strip casting;

The possibility of manufacturing weathering steel strips by twin roll strip casting was explored.

Based on the existing condition of the lab, a mathematical model for the twin roll strip casting is presented.

Experimental study on the twin roll strip casting of stainless steel was carried out using laboratory unequal diameter twin roll caster at state key laboratory of rolling and automation, Northeastern University.

Through using hydraulic proportion valve to control the double-roller moveable device, the ability of refine area is improved and movement frequency of 350t cool-shear is stabilized.