Twin roll casting of aluminum alloy AC7B

2019 ◽  
Vol 2019.27 (0) ◽  
pp. 413
Author(s):  
Makoto HAGIWARA ◽  
Yuto HORIGOME ◽  
Shogo IMAI ◽  
Shinichi NISHIDA
Keyword(s):  
Aluminum Alloy ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
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.

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.

704 Twin Roll Casting of Aluminum Alloy with Wide Freezing Zone

2013 ◽  
Vol 2013.88 (0) ◽  
pp. _7-4_
Author(s):  
Keisuke KAMAKURA ◽  
Yuki MIMA ◽  
Toshio HAGA
Keyword(s):  
Aluminum Alloy ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll

Twin roll casting of aluminum alloy strips

2004 ◽  
Vol 153-154 ◽  
pp. 42-47 ◽  
Author(s):  
Toshio Haga ◽  
Kenta Tkahashi ◽  
Masaaki Ikawaand ◽  
Hisaki Watari
Keyword(s):  
Aluminum Alloy ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll

scholarly journals Texture analysis of cold rolled and annealed aluminum alloy produced by twin-roll casting

2011 ◽  
Vol 15 (1) ◽  
pp. 97-102 ◽  
Author(s):  
Juliana de Paula Martins ◽  
André Luis Moreira de Carvalho ◽  
Angelo Fernando Padilha
Keyword(s):  
Aluminum Alloy ◽  
Texture Analysis ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Cold Rolled ◽  
Twin Roll

scholarly journals Effect of Cooling Rate on Microstructure and Properties of Twin-Roll Casting 6061 Aluminum Alloy Sheet

Metals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1168 ◽  
Author(s):  
Zhen Xu ◽  
Sixue Wang ◽  
Hongbin Wang ◽  
Hua Song ◽  
Shengli Li ◽  
...  
Keyword(s):  
Grain Size ◽  
Aluminum Alloy ◽  
Cooling Rate ◽  
Alloy Sheet ◽  
Aluminum Alloy Sheet ◽  
6061 Aluminum Alloy ◽  
Microstructure And Properties ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll

In this study, a twin-roll casting sheet of 6061 aluminum alloy was cooled using furnace, asbestos, air, wind and water. The effect of cooling rate on the microstructure and properties of twin-roll casting 6061 aluminum alloy sheet were studied. Optical microscope, scanning electron microscope, X-ray diffraction, microhardness tester and universal tensile machine were used to observe the microstructure and properties of twin-roll casting sheet of 6061 aluminum alloy. The results show that the higher the cooling rate, the smaller the grain size of the alloy and the smaller the number of precipitated phases in the matrix. Uniform grain size of the alloy could be obtained at a stable cooling rate. The hardness, tensile strength and elongation of the twin-roll casting sheet increased with cooling rate. Under wind cooling condition, the twin-roll casting sheet demonstrated excellent comprehensive performance, i.e., 88 MPa of yield strength, 178 MPa of tensile strength and 15% of elongation, respectively. A quantitative Hall–Petch relation was established to predict the yield strength of 6061 twin-roll casting sheets with different grain sizes and cooling rate.

Coupled thermal-fluid-mechanics analysis of twin roll casting of A7075 aluminum alloy

2017 ◽  
Vol 23 (5) ◽  
pp. 923-929 ◽  
Author(s):  
Yun-Soo Lee ◽  
Hyoung-Wook Kim ◽  
Jae-Hyung Cho ◽  
Se-Hwan Chun
Keyword(s):  
Aluminum Alloy ◽  
Fluid Mechanics ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Mechanics Analysis ◽  
Twin Roll
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