Grain refinement and mechanism of CAl_（0.5）W_（0.5） compound in Mg-Al alloys

Grain refinement and mechanism of CAl_（0.5）W_（0.5） compound in Mg-Al alloys

The effect of CAl0.5W0.5（CAW） compound on the grain refinement of Mg-Al based alloys was investigated.The results show that CAW compound is an effective and active grain refiner.The grain size of binary Mg-Al alloys is more than 500 μm,and it is changed to about 110 μm with a 1 wt.% CAW addition.The...

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Veröffentlicht in:Rare metals 2010 (6), p.630-634
1. Verfasser: LIU Baozhong FAN Yanping PENG Qiuming MI Guofa WANG Limin
Format: Artikel
Sprache:eng
Schlagworte:
Al合金
Al基合金
力学性能
化合物
晶粒尺寸
晶粒细化剂
碳原子线
镁铝合金
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description The effect of CAl0.5W0.5（CAW） compound on the grain refinement of Mg-Al based alloys was investigated.The results show that CAW compound is an effective and active grain refiner.The grain size of binary Mg-Al alloys is more than 500 μm,and it is changed to about 110 μm with a 1 wt.% CAW addition.The hardness increased with the decease of grain size monotonously.The mechanical properties are improved by the addition.The fine grain size is mainly ascribed to the dispersed Al2CO particles,which are very potent nucleating substrates for Mg-Al alloys.The nucleation cores formed by chemical reaction directly are well-distributed in the matrix.
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source Springer Online Journals Complete; Alma/SFX Local Collection
subjects Al合金
Al基合金
力学性能
化合物
晶粒尺寸
晶粒细化剂
碳原子线
镁铝合金
title Grain refinement and mechanism of CAl_（0.5）W_（0.5） compound in Mg-Al alloys
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