| 冷却速度对A356铝合金变质效果的影响 |
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| 引用本文： | 赵建华,谭力. 冷却速度对A356铝合金变质效果的影响[J]. 铸造设备研究, 2009, 0(6): 25-27 |
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| 作者姓名： | 赵建华 谭力 |
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| 作者单位： | 重庆大学材料科学与工程学院,重庆,400030 |
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| 摘 要： | 采用不同铸型的阶梯形试样，分别添加量为0．04％的Al—10％Sr中间合金和1％的三元钠盐变质剂对A356熔体进行变质处理。研究了冷却速度对A356合金变质效果的影响和这两种变质剂对冷却速度的敏感性。结果表明：冷却速度越大，枝晶间距越小，变质效果越好；Na变质对于冷却速度的敏感性高于Sr。
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| 关 键 词： | A356 冷却速度 变质 敏感性 |
The Influence of Cooling Rate on the Modification Effect of A356 Aluminum Alloy |
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| ZHAO Jian-hua,TAN Li. The Influence of Cooling Rate on the Modification Effect of A356 Aluminum Alloy[J]. Research Studies On Foundry Equipment, 2009, 0(6): 25-27 |
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| Authors: | ZHAO Jian-hua TAN Li |
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| Affiliation: | (College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China) |
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| Abstract: | A356 melt was modified separatively by Al-10%Sr master alloy and ternary modification. The influence of cooling rate on modification effect of A356 alloy and the sensitivity of these two modification on the cooling rate were studied. The results showed that the faster cooling rate, the shorter dendrite arm, the better refinement effect. The sensitivity of Na modifier is more sensitiver on the cooling rate than St. |
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| Keywords: | A356 |
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