研究了钡盐加入量、变质温度和冷却速率等对钡盐变质铸造铝硅镁系合金组织和性能的影响。结果表明：随着钡盐加入量的增加，试验合金的变质效果越明显，但过多反而会使合金的组织和性能恶化；提高冷却速率对变质效果有利；钡盐变质最佳的温度为750℃左右，加入钡盐的最佳质量分数为1．0％；钡盐变质的长效性及重熔稳定性均很好。
The effects of barium chloride additions, metamorphoic temperatures and cooling rates on microstructure and mechanical properties of as-cast Al-Si-Mg alloy metamorphosed by barium chloride was studied. The results show that the metamorphic effect of the tested alloy was more obvious with the increase of barium chloride adding content, but too much barium chloride was bad to the microstructure and mechanical properties of the alloy. Increasing cooling rate was benefit for metamorphoic effect. The best barium chloride metamorphic temperature was about 750 ℃ and the best barium chloride addition was 1.0wt%, and the long holding property and re-melting stable property of barium chloride metamorphosing was good.
参考文献
| [1] | 汤顺意,周年润.铸造Al-Si合金变质处理的概况和发展趋势[J].浙江冶金,2007(02):1-5. |
| [2] | 林家平,徐建秋,肖于德,王伟,裴斐,乔翔.变质处理对过共晶铝硅合金组织和性能的影响[J].机械工程材料,2010(03):31-34,60. |
| [3] | 张静武,李慧,孟显哲,刘春海.ZL101合金的变质[J].中国有色金属学报,2001(z2):91-94. |
| [4] | 谭敦强,唐建成,黎文献,肖于德,王日初,陈伟.冷却速度对Al-8.5Fe-1.3V-1.7Si合金主要相组成的影响[J].中国有色金属学报,2005(08):1226-1230. |
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