| Aging microstructural characteristics of ZA-27 alloy and SiCp/ZA-27 composite |
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| 引用本文： | 李子全 周衡志 骆心怡 汪涛 沈凯. Aging microstructural characteristics of ZA-27 alloy and SiCp/ZA-27 composite[J]. 中国有色金属学会会刊, 2006, 16(1): 98-104. DOI: 10.1016/S1003-6326(06)60017-4 |
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| 作者姓名： | 李子全 周衡志 骆心怡 汪涛 沈凯 |
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| 作者单位： | College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| 基金项目： | Foundation item： Project（03G52047） supported by the Aviation Science Foundation, China |
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| 摘 要： | The aging characteristics of as-quenched microstructures of ZA-27 alloy and SiCp/ZA-27 composite（ZMCp） were investigated using SEM, EDS and TEM. The structure, morphology and size of sub-grains in primary dendrite in ZMCp continuously change during aging process. Little tiny spherical Zn-rich η phase distributes in the dendrite. Amount of transitional a＇ phase, well coherent with equilibrium αf phase, in SiCp-neighboring dendrite edge zone is less than that in dendrite center zone. Both eutectic and peritectic β phase transform into lamellar a and η phases, obeying [2113] η//[ 110]α, and （002）α//（1 1 01）η In the like-eutecticum of ZMCp, less amount of β phase and decomposition products are found. The size of α phase decomposed from peritectic β phase in ZMCp is obviously larger than that in the monolithic alloy. The lamella decomposition of β phase beside SiCp is evidently more rapid than that in the alloy. SiC particulates strongly accelerate neighboring β phase decomposition in aging process.
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| 关 键 词： | 金属基复合材料 碳化硅 SEM EDS TEM 显微结构 |
| 收稿时间： | 2005-08-15 |
| 修稿时间： | 2005-11-18 |
Aging microstructural characteristics of ZA-27 alloy and SiCp/ZA-27 composite |
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| Zi-quan LI, Heng-zhi ZHOU, Xin-yi LUO, Tao WANG,Kai SHEN. Aging microstructural characteristics of ZA-27 alloy and SiCp/ZA-27 composite[J]. Transactions of Nonferrous Metals Society of China, 2006, 16(1): 98-104. DOI: 10.1016/S1003-6326(06)60017-4 |
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| Authors: | Zi-quan LI Heng-zhi ZHOU Xin-yi LUO Tao WANG Kai SHEN |
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| Affiliation: | College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | |
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| Keywords: | SiCp/ZA-27 composite aging microstructure ZA-27 alloy precipitation crystallographic orientation relationship |
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