Grain refinement of Mg-Li-Al cast alloys by adding typical master alloys

Jiang, Bin, Yang, Qing-shan, Zhang, Ming-xing, Qiu, Dong, Li, Rui-hong and Pan, Fu-sheng (2011) Grain refinement of Mg-Li-Al cast alloys by adding typical master alloys. Progress in Natural Science: Materials International, 21 3: 236-239. doi:10.1016/S1002-0071(12)60036-7


Author Jiang, Bin
Yang, Qing-shan
Zhang, Ming-xing
Qiu, Dong
Li, Rui-hong
Pan, Fu-sheng
Title Grain refinement of Mg-Li-Al cast alloys by adding typical master alloys
Journal name Progress in Natural Science: Materials International   Check publisher's open access policy
ISSN 1002-0071
1745-5391
Publication date 2011-06-01
Sub-type Article (original research)
DOI 10.1016/S1002-0071(12)60036-7
Open Access Status DOI
Volume 21
Issue 3
Start page 236
End page 239
Total pages 4
Place of publication Haidian, Beijing, China
Publisher National Natural Science Foundation of China
Language eng
Subject 2500 Materials Science
Abstract Commercial Al-3Ti-1C and Al-5Ti-1B master alloys were added in order to refine the grains of Mg-Li-Al alloys. The effects of their addition levels on grain refinement of Mg-Li-Al cast alloy were investigated and the mechanism of the grain refinement was discussed. The results showed that the addition of Al-3Ti-1C master alloy reduced the grain size of LA141 cast alloy from 900 μm to 400 μm, while the addition of Al-5Ti-1B master alloy reduced the grain size of LA51 cast alloy from 500 μm to 240 μm. The grain refining mechanism was the heterogeneity nucleation of TiC and TiB, because of less than 10% mismatches of TiC/β-Li and TiB/α-Mg.
Formatted abstract
Commercial Al-3Ti-1C and Al-5Ti-1B master alloys were added in order to refine the grains of Mg-Li-Al alloys. The effects of their addition levels on grain refinement of Mg-Li-Al cast alloy were investigated and the mechanism of the grain refinement was discussed. The results showed that the addition of Al-3Ti-1C master alloy reduced the grain size of LA141 cast alloy from 900 mu m to 400 mu m, while the addition of Al-5Ti-1B master alloy reduced the grain size of LA51 cast alloy from 500 mu m to 240 pm. The grain refining mechanism was the heterogeneity nucleation of TiC and TiB2, because of less than 10% mismatches of TiC/beta-Li and TiB2/alpha-Mg.
Keyword Magnesium lithium alloy
Master alloy
Grain refinement
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2012 Collection
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 11 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Sun, 21 Aug 2011, 11:33:53 EST by System User on behalf of School of Mechanical and Mining Engineering