scholarly journals Evaluation of grain refining performance of aluminum cast using TP-1 test mold

2021 ◽  
Vol 71 (1) ◽  
pp. 8-15
Author(s):  
Yoshimi Watanabe ◽  
Ryo Kagimoto ◽  
Soichiro Iwata ◽  
Motoko Yamada ◽  
Mami Mihara-Narita ◽  
...  
Keyword(s):  
Grain Refining ◽  
Refining Performance

Effect of C/Ti Ratio and Al Powder Size on Microstructure and Performance of Al-Ti-C Grain Refiner

2007 ◽  
Vol 353-358 ◽  
pp. 2981-2984
Author(s):  
Chun Xiang Xu ◽  
Li Ping Liang ◽  
Bin Feng Lu ◽  
Jin Shan Zhang ◽  
Wei Liang
Keyword(s):  
Powder Size ◽  
Grain Refining ◽  
Grain Refiner ◽  
Casting Method ◽  
High Temperature Synthesis ◽  
Method Effects ◽  
Refining Performance ◽  
Al Powder ◽  
And Performance ◽  
Microstructure And Performance

Al-Ti-C grain refiners have been prepared by combining self-propagating high-temperature synthesis (SHS) technique and melting-casting method. Effects of Al powder size and C/Ti ratio on the microstructures and grain-refining efficiency of Al-Ti-C grain refiners were studied by OM, XRD, SEM and EDS. The results show that when Al powder size is fine, and C/Ti ratio is 1: 8, SHS reaction among the mixed powders can easily carry on in the melt. As a result, the prepared grain refiner consists of blocky Al3Ti and fine TiC particles distributed in Al matrix, and exhibits excellent grain refining performance on commercially pure Al.

Research on Microstructure and Refining Effect of Al-3Ti-0.5B Master Alloy Produced with Ti Sponge

2011 ◽  
Vol 66-68 ◽  
pp. 845-849
Author(s):  
Xiao Wei Chen ◽  
Ya Gao ◽  
Hong Liang Zhao ◽  
Kang Rong Weng ◽  
Bao Feng Zhang
Keyword(s):  
Grain Size ◽  
Master Alloy ◽  
Molten Aluminum ◽  
Grain Refining ◽  
Commercial Purity ◽  
Average Grain Size ◽  
Feeding Methods ◽  
Refining Performance ◽  
Second Phases ◽  
Commercial Purity Aluminum

Al-3Ti-0.5B master alloy was prepared by reaction of Ti sponge, KBF4with aluminum melt. The morphology and distribution of the second phases effected by the feeding methods have been discussed. And the grain refining performance and the resistance to fading of the master alloy were investigated. The result shows that the Al-3Ti-0.5B master alloy which was prepared by adding mixture of Ti sponge and KBF4power into molten aluminum contains a large number of granular TiB2phase and blocky TiAl3phase. The average grain size of commercial purity aluminum was refined from 920μm to 120μm by adding 0.5wt.% of the master alloy. And the refining performance of the master alloy shows no obviously fading phenomenon when the holding time up to 30min.

Influence of microstructure on grain refining performance of Al–Ti–B master alloys

1993 ◽  
Vol 9 (2) ◽  
pp. 97-103 ◽  
Author(s):  
C. D. Mayes ◽  
D. G. McCartney ◽  
G. J. Tatlock
Keyword(s):  
Grain Refining ◽  
Master Alloys ◽  
Refining Performance

Microstructure of Al-Ti-B-Er refiner and its grain refining performance

2013 ◽  
Vol 31 (6) ◽  
pp. 622-627 ◽  
Author(s):  
Tengfei MA ◽  
Ziyong CHEN ◽  
Zuoren NIE ◽  
Hui HUANG
Keyword(s):  
Grain Refining ◽  
Refining Performance

Microstructure and Grain Refining Performance of a Rapidly Solidified Al-5Ti-1B Master Alloy

2007 ◽  
Vol 546-549 ◽  
pp. 755-760
Author(s):  
Yan Feng Han ◽  
Da Shu ◽  
Lan Jin ◽  
Jun Wang ◽  
Bao De Sun
Keyword(s):  
Master Alloy ◽  
Large Scale ◽  
Continuous Production ◽  
Tib2 Particle ◽  
Grain Refining ◽  
Purity Aluminium ◽  
Rotating Liquid ◽  
Spinning Process ◽  
Refining Performance ◽  
Rapidly Solidified

A rapidly solidified Al-5Ti-1B master alloy prepared by the in-rotating-liquid spinning process has been investigated. It has been found that the in-rotating-liquid spinning process is a potential rapid solidification method to realize the continuous production of the master alloy wire on a large scale. The microstructure of the Al-5Ti-1B was evidently improved after being rapidly solidified. The agglomeration of the TiB2 particle was significantly decreased. Consequently, the grain size of the purity aluminium refined by the rapidly solidified Al-5Ti-1B was reduced by 15% compared with that refined by the master alloy prepared under normal conditions.

Effect of La on Microstructure and Grain-Refining Performance of Al-Ti-C Grain Refiner

2006 ◽  
Vol 24 (5) ◽  
pp. 596-601 ◽  
Author(s):  
Chunxiang Xu ◽  
Liping Liang ◽  
Binfeng Lu ◽  
Jinshan Zhang ◽  
Wei Liang
Keyword(s):  
Grain Refining ◽  
Grain Refiner ◽  
Refining Performance

Refinement of TiB2 in Al-Ti-B Grain Refiner Alloys by Ultrasound and the Effect on Al Grain Size

2010 ◽  
Vol 654-656 ◽  
pp. 958-961 ◽  
Author(s):  
Da Shu ◽  
Bao De Sun ◽  
Jia Wei Mi ◽  
Patrick S. Grant
Keyword(s):  
Reaction Rate ◽  
Grain Refining ◽  
Commercial Purity ◽  
Grain Refiner ◽  
Mean Diameter ◽  
Refining Performance ◽  
Narrow Width ◽  
Free Growth ◽  
Fluoride Salts ◽  
Tib2 Particles

High-intensity ultrasound was applied during the preparation of an Al-5Ti-1B master alloy when reacting fluoride salts with molten Al. The reaction rate was significantly increased with TiB2 particles of much reduced mean diameter and narrow width spread produced in ~4 minutes. The improved grain refining performance of the TiB2 in a commercial purity Al was studied and modelled using free growth model. The increased number and reduced size of TiB2 particles provided an enhanced grain refining capability.

Sign in / Sign up

Export Citation Format

Share Document