An investigation on hot-cracking mechanism of Sr addition into Mg–6Al–0.5Mn alloy

Autor: Shuang-Shou Li, Xin-Yan Jin, Da-Ben Zeng, Bin Tang
Rok vydání: 2011
Předmět:
Zdroj: Journal of Materials Science. 47:2000-2004
ISSN: 1573-4803
0022-2461
DOI: 10.1007/s10853-011-5997-3
Popis: The hot-tearing susceptibility of Mg–6Al–0.5Mn alloy decreased with the increasing Sr content (≤0.2 wt%). The related mechanism is described as follows: Sr refines the grain and reduces the tendency of divorced eutectic; Sr decreases the eutectic temperature and results in higher intergranular strength. Both of the above reasons could improve the filling capacity of the melt, resulting in the best hot-tearing-resistant property of the alloy.
Databáze: OpenAIRE