Dendritic solidification of undercooled CU-20%Pb hypomonotectic alloy
Dendritic solidification of undercooled CU-20%Pb hypomonotectic alloy
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DOI：
10.1016/1359-6462(95)00664-8
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发表时间：
1996-05
影响因子：
6
通讯作者：
C. Dong;B. Wei
中科院分区：
文献类型：
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作者：
C. Dong;B. Wei
Cu-Pb一元系是一类重要的耐磨材料特别是轴承合金的基础。其工业上令人感兴趣的组成范围为10至50%Pb。为了制备定向复合材料或均匀分散体，人们对定向凝固或微重力条件下的Cu-Pb单晶合金的凝固机理进行了广泛的研究。目前关于铜铅单晶凝固的空间实验尚属初步性质，因此不可能就微重力的影响得出任何真正确定的结论。相比之下，到目前为止，对Cu-Pb一元系合金的过冷行为和快速凝固动力学的了解还很少。本工作的目的是过冷大块样品的铜铅合金在显着的程度，并研究其随后的快速凝固过程。报道了Cu-20%Pb亚偏晶合金的相关研究结果。
The Cu-Pb monotectic system is the basis of an important category of wear-resistant materials especially bearing alloys. Its industrially interesting composition ranges from 10 to 50%Pb. In order to produce aligned composites or homogeneous dispersions, extensive research has been performed to investigate the solidification mechanism of Cu-Pb monotectic alloys under directional solidification or microgravity conditions. The preliminary nature of the current space experiments on Cu-Pb monotectic solidification excludes the possibility to draw any really definite conclusions about the influences of microgravity. In contrast, so far still little has been known about the undercooling behavior and rapid solidification kinetics of Cu-Pb monotectic alloys. The objective of the present work is to undercool bulk samples of Cu-Pb alloys to a significant extent and investigate their subsequent rapid solidification process. and this paper reports the related results obtained for Cu-20%Pb hypomonotectic alloy.