On influence of Ti and Sr on microstructure, mechanical properties and quality index of cast eutectic Al–Si–Mg alloy
On influence of Ti and Sr on microstructure, mechanical properties and quality index of cast eutectic Al–Si–Mg alloy
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DOI：
10.1016/j.matdes.2010.12.012
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发表时间：
2011-04
影响因子：
8.4
通讯作者：
S. Haro-Rodríguez;R. Goytia-Reyes;D. K. Dwivedi;V. H. Baltazar-Hernández;Horacio Flores-Zúñiga;María J. Pé
中科院分区：
文献类型：
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作者：
S. Haro-Rodríguez;R. Goytia-Reyes;D. K. Dwivedi;V. H. Baltazar-Hernández;Horacio Flores-Zúñiga;María J. Pé
本文研究了晶粒细化（Al-5 Ti-1B）和变质（Al-10 Sr）对铸造Al-12 Si合金显微组织、含铁针状β相形态和力学性能的影响。晶粒细化和变质将β相的针状形态转化为汉字。加入Ti和Sr的晶粒细化和变质分别提高了铸件的质量指数（Q）。添加0.06wt.% Sr导致最佳的机械性能组合，如极限拉伸强度和延展性。
In this paper, the influence of grain refinement (Al–5Ti–1B) and modification (Al–10Sr) on the microstructure, the morphology of iron-containing needle shape beta phase and mechanical properties of cast Al–12Si alloy has been reported. The grain refinement and modification transforms the needle shape morphology of the β-phase into Chinese script. Grain refinement and modification by addition of Ti and Sr respectively increased the quality index (Q) of the casting. Addition of 0.06wt.% Sr resulted in a best combination of mechanical properties such as ultimate tensile strength and ductility.