Effect of Heat Treatment on Microstructure of Continuous Unidirectional Solidified Cu-Ni-Sn Alloy

被引：1
|
作者：
Luo, Ji Hui [1 ]
Li, Qin [1 ]
Chen, Yan Hui [1 ]
Liu, Shu [1 ]
Wen, Qiu Yue [1 ]
Ding, Hui Min [1 ]
机构：
[1] Yangtze Normal Univ, Coll Mech & Elect Engn, Chongqing 408100, Peoples R China
来源：
MATERIALS PROCESSING FUNDAMENTALS 2019 | 2019年
关键词：
Cu-Ni-Sn alloy; Continuous unidirectional solidification; Microstructures; Annealing; DISCONTINUOUS PRECIPITATION; BEHAVIOR;
D O I：
10.1007/978-3-030-05728-2_15
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cu-15%Ni-8%Sn alloy was prepared by continuous unidirectional solidification (CUS) processing and the as-cast CUS Cu-15%Ni-8%Sn alloywas homogenized. The evolution of microstructure and composition distribution of as-cast and annealed CUS Cu-15%Ni-8%Sn alloy was analyzed. The results show that the microstructure of as-cast CUS Cu-15%Ni-8%Sn is mainly composed of coarse columnar grains and there exist segregation phenomenon in the grain boundaries. After annealing at temperature of 850 degrees C for 30 min, it was found that the composition of the alloy began to become uniform and the solutes gathered at the grain boundaries diffused into the columnar grains.
引用
收藏
页码：163 / 168
页数：6
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