Composition Homogenization Evolution of Twin-Roll Cast 7075 Aluminum Alloy Using Electromagnetic Field

2015 ◽  
Vol 44 (3) ◽  
pp. 581-586 ◽  
Author(s):  
Su Xin ◽  
Liu Tan ◽  
Xu Guangming
Keyword(s):  
Electromagnetic Field ◽  
Aluminum Alloy ◽  
7075 Aluminum Alloy ◽  
Twin Roll Cast ◽  
Twin Roll

Effect of Magnetostatic Field on Microstructure of 7075 Aluminum Alloy Strip Manufactured by Twin-Roll Casting

2013 ◽  
Vol 652-654 ◽  
pp. 2427-2431 ◽  
Author(s):  
Xin Su ◽  
G M Xu ◽  
Y H Feng
Keyword(s):  
Electromagnetic Field ◽  
Aluminum Alloy ◽  
Central Zone ◽  
Alloy Strip ◽  
7075 Aluminum Alloy ◽  
Magnetostatic Field ◽  
Dendritic Crystal ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll

In this paper, the effect of magnetostatic field on the microstructure and microsegregation of 7075 aluminum alloy strip by twin-roll casting is researched , and the result shows that when no electromagnetic field is applied during the process of roll-casting , the microstructure of 7075 strip is most composed of coarse columnar and dendritic crystal , the direction of grains is equal to roll-casting direction. When the magnetostatic field with 0.13T intensity is applied during the twin-roll casting, the microstructural of strip becomes uniform ,refined and equiaxed at the central zone of strip, and the dendritic crystal at the surficial is disordered and refined significantly.

Effect of Oscillating Field on Microstructure of Twin-roll Cast 7075 Aluminum Alloy

2014 ◽  
Vol 43 (12) ◽  
pp. 2937-2942 ◽  
Author(s):  
Su Xin ◽  
Zhang Aiping ◽  
Xiao Yao ◽  
Li Mengnan ◽  
Xu Guangming
Keyword(s):  
Aluminum Alloy ◽  
7075 Aluminum Alloy ◽  
Twin Roll Cast ◽  
Twin Roll

Forming of Small Projection on Roll-Cast A356 Strip by Cold Rolling and Small Groove on PET Plate Using A356 Die

2019 ◽  
Vol 805 ◽  
pp. 37-42
Author(s):  
Toshio Haga ◽  
Yhuta Nakazawa
Keyword(s):  
Aluminum Alloy ◽  
Cold Rolling ◽  
Polyethylene Terephthalate ◽  
Alloy Sheet ◽  
Rolling Speed ◽  
A356 Aluminum Alloy ◽  
Aluminum Alloy Sheet ◽  
A356 Aluminum ◽  
Twin Roll Cast ◽  
Twin Roll

A small projection with a height and width of about 40 and 50 µm, respectively, was formed on a twin-roll-cast A356 aluminum alloy sheet by cold rolling at a rolling speed of 0.5 m/min. This projection was then used as a die to form a groove with a depth and width of about 40 and 50 µm, respectively, on a polyethylene terephthalate plate by pressing.

Near-Surface Microstructure on Twin-Roll Cast 8906 Aluminum Alloy

2015 ◽  
Vol 46 (6) ◽  
pp. 2688-2695 ◽  
Author(s):  
Junjie Wang ◽  
Xiaorong Zhou ◽  
George E. Thompson ◽  
John A. Hunter ◽  
Yudie Yuan
Keyword(s):  
Aluminum Alloy ◽  
Surface Microstructure ◽  
Near Surface ◽  
Twin Roll Cast ◽  
Twin Roll

scholarly journals A Novel Approach to Improve the Microstructure and Mechanical Properties of Al–Mg–Si Aluminum Alloys during Twin-Roll Casting

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1713 ◽  
Author(s):  
Yong Li ◽  
Chen He ◽  
Jiadong Li ◽  
Zhaodong Wang ◽  
Di Wu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Crystallization Front ◽  
Alloying Elements ◽  
Cast Slab ◽  
Energy Dispersion Spectroscopy ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll Cast ◽  
Twin Roll

The main purpose of this present study was to investigate the different processing conditions on the microstructure, segregation behavior of alloying elements, and mechanical properties of Al−Mg−Si alloy twin-roll cast slab prepared using a novel twin-roll casting technology. The simulation of temperature field, distribution of alloying elements, tensile properties, hardness, and conductivity were examined by a Leica optical microscope, scanning electron microscopy, energy dispersion spectroscopy, electron probe microanalysis, and tensile tests. The results indicated that when the traditional twin-roll casting method was used to produce aluminum alloy strip, there are obvious centerline segregation defects due to the deep crystallization front depth and symmetrical solidification characteristics. When the forced-cooling technology was applied in the twin-roll casting process, by virtue of the changing of crystallization front depth and crystallization front shape, the segregation defects are obviously suppressed. Suggesting that this method can significantly improve the uniformity of alloying elements in the thickness direction of the twin-roll cast slab, ultimately improve the mechanical properties of AA6022 aluminum alloy.

Centerline Segregation in Twin-Roll-Cast Aluminum Alloy Slab

JOM ◽  
1982 ◽  
Vol 34 (6) ◽  
pp. 70-75 ◽  
Author(s):  
Iljoon Jin ◽  
Larry R. Morris ◽  
J. D. Hunt
Keyword(s):  
Aluminum Alloy ◽  
Cast Aluminum Alloy ◽  
Cast Aluminum ◽  
Centerline Segregation ◽  
Twin Roll Cast ◽  
Twin Roll

Effect of Electromagnetic Field on the Micromorphology of Twin-roll Cast 7075 Alloy

2014 ◽  
Vol 43 (10) ◽  
pp. 2354-2358 ◽  
Author(s):  
Su Xin ◽  
Li Mengnan ◽  
Zhang Aiping ◽  
Xiao Yao ◽  
Xu Guangming
Keyword(s):  
Electromagnetic Field ◽  
7075 Alloy ◽  
Twin Roll Cast ◽  
Twin Roll

Effect of Electromagnetic Field on Horizontal Direct Chill Casting of 7075 Aluminum Alloy

2010 ◽  
Vol 654-656 ◽  
pp. 982-985 ◽  
Author(s):  
Qing Feng Zhu ◽  
Zhi Hao Zhao ◽  
Xiang Jie Wang ◽  
Jian Zhong Cui
Keyword(s):  
Electromagnetic Field ◽  
Aluminum Alloy ◽  
Electromagnetic Fields ◽  
Molten Pool ◽  
Casting Process ◽  
Direct Chill ◽  
7075 Aluminum Alloy ◽  
Solidification Behavior ◽  
Cast Structure ◽  
Thermal Distribution

The influence of different electromagnetic fields on the horizontal direct chill (HDC) casting of aluminum alloy is studied. 7075 aluminum alloy with 100-mm in diameter is produced by HDC casting process; single electromagnetic field located before or around the mold and an out-phase electromagnetic field (OPEMF) are applied in the HDC casting process. The effect of different electromagnetic fields on the HDC casting solidification behavior and as-cast structure is investigated. The electromagnetic field can effectively make uniform thermal distribution in the molten pool and refine the as-cast structure. The OPEMF is more efficient than the single electromagnetic field in improving the as-cast structure of HDC cast ingots.

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