Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第8卷    第3期    总第28期    1998年9月

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文章编号:(1998)03-431-5
喷射成形Al98-3xCu2xFexNi1Ce0.5Zr0.5
合金快速凝固组织和硬度
范洪波  曹福洋  崔成松   蒋祖龄  李庆春

(哈尔滨工业大学材料科学与工程学院, 哈尔滨 150001)

摘 要:     制备了多种Al98-3xCu2xFexNi1Ce0.5Zr0.5合金喷射成形毛坯, 同时研究了该类合金的快速凝固组织和硬度随合金组分变化的规律。 结果发现: 预成形毛坯的平均致密度大于96.8%, 毛坯底部的孔隙以搭接式为主; 随着Cu, Fe合金元素含量的提高, 其组织形态变化的规律为:细小晶粒组织→粒状析出相→细针状析出相, 且硬度值单调上升。 当x≤1时, 快速凝固态合金的硬度值高于普通铸造状态的硬度值; 当x>1时, 结果相反。

 

关键字: 关键词:     喷射成形    铝合金    组织     性能

MORPHOLOGY AND HARDNESS OF SPRAY FORMED
Al98-3xCu2xFexNi1Ce0.5Zr0.5 ALLOYS
Fan Hongbo, Chao Fuyang, Chui Chengsong, Jiang Zuling and Li Qingchun

School of Materials Science and Engineering,Harbin Institute of Technology, Harbin 150001, P. R. China

Abstract:The rapidly solidified Al98-3xCu2xFexNi1Ce0.5Zr0.5 alloys were fabricated by means of spray forming technique. The morphologies and hardnesses of these alloys were studied. The results showed that the average contrary density of as-deposite is mainly as-framing. With the increment of the contents of copper and iron, the transforming rule of morphology is tiny grain morphology → particle-like dispersed phase → needle-like dispersed phase. Meanwhile, the hardness increases monotonously. When x≤1, the hardness of rapidly solidified alloy is greater than that of alloy made by ingot metallurgy.When x>1, the result is opposite.

 

Key words:     spray forming technique    aluminium alloy     morphology    property

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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