Grain refining potency of Al–B master alloy on pure aluminum

2011 ◽  
Vol 64 (12) ◽  
pp. 1121-1124 ◽  
Author(s):  
Tongmin Wang ◽  
Zongning Chen ◽  
Hongwang Fu ◽  
Jun Xu ◽  
Ying Fu ◽  
...  
Keyword(s):  
Master Alloy ◽  
Pure Aluminum ◽  
Grain Refining

The Behavior of AlTiC Master Alloys in Grain Refining of Commercial and High Pure Aluminum

2005 ◽  
Vol 475-479 ◽  
pp. 313-316
Author(s):  
Jian Guo Li ◽  
Min Huang ◽  
Zimu Shi ◽  
Dong Yu Liu
Keyword(s):  
Master Alloy ◽  
Heterogeneous Nucleation ◽  
Pure Aluminum ◽  
Grain Refining ◽  
Refining Efficiency ◽  
Master Alloys

The AlTiC master alloy has been prepared in different components to refine 99.8%Al and 99.98％Al, then compared to two typical Al5Ti1B in refining efficiency and the grain nuclear. The result showed that the refining efficiency seemed better if the nucleation of high pure aluminum revealed complexity and variety. It may due to that the latency heterogeneous nucleation was efficient on the whole, consequently accelerated refining efficiency.

Microstructure and grain refining performance of equal-channel angular-pressed Al–5%Ti–1%B master alloy on pure aluminum

2016 ◽  
Vol 122 (12) ◽  
Author(s):  
Kun Xia Wei ◽  
Ping Liu ◽  
Wei Wei ◽  
Qing Bo Du ◽  
Igor V. Alexandrov ◽  
...  
Keyword(s):  
Master Alloy ◽  
Pure Aluminum ◽  
Grain Refining ◽  
Refining Performance

Influence of Different Titanium Alloying Methods on the Microstructure and Wear Behavior of ZL108 Alloy

2011 ◽  
Vol 311-313 ◽  
pp. 712-715 ◽  
Author(s):  
Niu Can Liu ◽  
Jun Qing Li ◽  
Gang Li
Keyword(s):  
Wear Resistance ◽  
Aluminum Alloy ◽  
Grain Refinement ◽  
Master Alloy ◽  
Wear Behavior ◽  
Pure Aluminum ◽  
Grain Refining ◽  
Titanium Aluminum

Two kinds of ZL108 alloys containing titanium are produced with electrolytic low-titanium aluminum alloy (named as ZL108D) and pure aluminum as well as Al-Ti master alloy (named as ZL108R) respectively. The influence of different titanium alloying methods on the microstructure and wear behavior is investigated. The result shows that it is an effective for grain refining of ZL108 alloy by adding titanium to the melt before casting. Addition of titanium can improve the wear resistance of ZL108 alloy, while ZL108D is superior to ZL108R. It is attributed to the addition with electrolytic low-titanium aluminum alloy results in better grain refinement.

Effect of Fe on grain refining of pure aluminum refined by Al5TiB master alloy

2005 ◽  
Vol 59 (27) ◽  
pp. 3398-3401 ◽  
Author(s):  
Yijie Zhang ◽  
Haowei Wang ◽  
Naiheng Ma ◽  
Xianfeng Li
Keyword(s):  
Master Alloy ◽  
Pure Aluminum ◽  
Grain Refining

The Formation Mechanism of Equiaxed Crystals in Pure Aluminum Solidification Structure under the Al-Ti-C Master Alloy

2013 ◽  
Vol 668 ◽  
pp. 865-869
Author(s):  
Wan Wu Ding ◽  
Wen Jun Zhao ◽  
Tian Dong Xia
Keyword(s):  
Transition Zone ◽  
Formation Mechanism ◽  
Master Alloy ◽  
Heterogeneous Nucleation ◽  
Pure Aluminum ◽  
Solidification Structure ◽  
Impact Mechanism ◽  
Tic Particle ◽  
The Impact

The influence of different solidified velocities on the structure of pure aluminum during the process of refinement by Al-5Ti-0.6C master alloy was studied and the impact mechanism was discussed. The results show that at the same solidified velocity, with the increase of the amount of Al-5Ti-0.6C master alloy, in the solidified structure of pure aluminum, columnar crystals will gradually decrease, while equiaxed crystals will gradually increase. But in the case when the level of addition is the same, the faster the solidified velocity, the greater the number of equiaxed crystals will be in the ingot microstructure. The formation of equiaxed crystals is the result of the dual role of dissociation of crystal particles and heterogeneous nucleation of “TiC particle---Ti transition zone”.

Influence of Reaction Temperature for the Manufacturing of Al-3Ti and Al-3B Master Alloys and their Grain Refining Efficiency on a Al-7Si Alloy

2007 ◽  
Vol 29-30 ◽  
pp. 111-115 ◽  
Author(s):  
S.A. Kori ◽  
V. Auradi
Keyword(s):  
Size Distribution ◽  
Grain Refinement ◽  
Reaction Temperature ◽  
Master Alloy ◽  
Induction Furnace ◽  
Grain Refining ◽  
Refining Efficiency ◽  
Master Alloys ◽  
Halide Salts ◽  
Titanium Fluoride

In the present work binary Al-3Ti and Al-3B master alloys were prepared at different reaction temperatures in an induction furnace by the reaction of halide salts like potassium fluoborate and potassium titanium fluoride with liquid molten Al. The indigenously developed master alloys were used for grain refinement studies of Al-7Si alloy and evaluated for their grain refining ability by CACCA studies. The present results suggest that, the reaction temperature influences the size, size distribution and morphology of the intermetallic (Al3Ti in Al-3Ti, and AlB2/AlB12 in Al-3B) particles present in Al-3Ti and Al-3B master alloys. Grain refinement studies of Al-7Si alloy reveal that, Al-3Ti and Al-3B master alloys prepared at 8000C-60 min. have shown better grain refining efficiency on Al- 7Si alloy when compared to the master alloys prepared at 9000C-60 min and 10000C-60 min respectively. In addition, B-rich Al-3B master alloy shows efficient grain refinement than Ti rich Al- 3Ti master alloy.

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