1. 哈尔滨理工大学材料科学与工程学院
2. 哈尔滨工业大学材料科学与工程学院
Published:2009
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KAGN Fu-wei, SI Hong-li, CAO Fu-yang, et al. Research of Microstructure of Spray-deposited High Si-Al Alloy[J]. 2009, 14(3): 107-110.
DOI:
KAGN Fu-wei, SI Hong-li, CAO Fu-yang, et al. Research of Microstructure of Spray-deposited High Si-Al Alloy[J]. 2009, 14(3): 107-110. DOI:
通过金相显微镜、扫描电镜和X射线衍射分析等手段
对Al-22Si-4.5Fe-1.5Mg-4.5Cu合金的喷射沉积态、挤压态以及热处理态的微观组织进行了观察及分析.结果表明:沉积态中初生硅相细化
合金经热挤压后组织致密、晶粒细小
热处理后合金第二相颗粒数量增加
尺寸未见明显改变
合金主要由α-Al
β-Si
β(Al5FeSi)
Al8Si6Mg3Fe
FeSi2
Al8Fe2Si等物相组成
热处理后新析出了细小的Al2Cu和Al2CuMg相
且以Al2Cu相为主.
The microstructure of extruded and heat treated spray-deposited Al-22Si-4.5Fe-1.5Mg-4.5Cu alloy was investigated by metallographic
scanning electron microscopy
X-ray diffraction.The results show that as-extruded alloy microstructure was smaller
the number of the second phase grain increased
and its dimension had no obvious changed and its shape was circular.The alloy was primary composed by α-Al
Al8Fe2Si
after heat treated Al2Cu and Al2CuMg phase precipitated
and mainly wit...
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