考察了液态不同温度处理在各种冷却条件下对高硅Al-Si合金凝固后的初晶硅组织和力学性能的影响.结果表明,在快速冷却条件下,液态高温处理能改变固态初晶硅组织并提高拉伸性能和改善耐磨性.液态温度处理影响固态组织和性能是由于液态结构变化引起的.
Abstract
The influences of liquid temperatures on the primary silicon structure and mechanical properties of hypereutectic Al-Si alloys containing high silicon level,in various cooling rate conditions,have been studied.Experimental results showed that high temperatures can obviously changed the primary silicon structure,and increased tensile properties and wearability under the condition of high cooling rate.The phenomena were attributed to the change of the liquid structure of the Al-Si alloy due to liquid temperature increase.
关键词
Al-Si合金 /
液态温度处理 /
微观组织 /
力学性能
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Key words
Al-Si alloy /
liquid temperature t /
microstructure /
mechanical property
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参考文献
Гавилин И В.Литейное проиэдство,1983,(2):4
Живодеров В М,Голкое В Д.Литейное проиэодство,1986,(11):9
栗野洋司,清水洁宏.铸物,1987,59:233
Singh M,Kumar R J.J Mater Sci,1973,8;317
Gui Manchang,et al.Acta Metallurgical Sinica,1994,7;49
Bian Xiufang,et al.Chin J Mechanical Engin,1992,5:176
Kobayashi K F,Hogan L M.J Mater Sci,1985,20:1061
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脚注
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