Effect of cooling rate on solidified microstructure and mechanical properties of aluminium-A356 alloy
Effect of cooling rate on solidified microstructure and mechanical properties of aluminium-A356 alloy
复制标题
冷却速率对A356铝合金凝固组织和力学性能的影响
DOI:
10.1016/j.jmatprotec.2007.12.059
复制
发表时间:
2008-10
影响因子:
6.3
通讯作者:
Wang, W. K.
中科院分区:
文献类型:
--
作者:
Jiang, Y. H.;Fan, C. Z.;Ma, Z.;Jia, Y. Z.;Shan, S. F.;Zhang, L. Y.;Wang, W. K.
A fast-cooling technology using a copper mould cooled by a phase-transition medium was used to prepare cast aluminium-A356 alloy by solidification of the melt. The cooling rate achieved with this technique is in the order of 102K/s. As-cast samples with a diameter of 10mm were produced. The microstructure and mechanical properties of this alloy have been investigated. The results show that both the primary and secondary dendrite arm spacing (DAS) are better refined by using this technology than with a conventional casting method. The cooling rate can be controlled to some extent by changing the amount of cooling medium. The DAS decreases with increasing cooling rate, and the microhardness and strength increase correspondingly.
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影响因子:
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