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9卷    第1期    总第30期    1999年3月

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文章编号:1004-0609(1999)01-0008-07
喷射沉积Al-5.5Cu/TiAl3自生复合材料
的微观组织及界面结构
张淑英  陈玉勇   范洪波   陈子勇   曹福洋   蒋祖龄   李庆春

(哈尔滨工业大学威海分校, 威海 264209
哈尔滨工业大学金属精密热加工国防科技重点实验室, 哈尔滨 150001
)

摘 要:   采用喷射沉积工艺制备了Al-5.5Cu/TiAl3自生复合材料, 并对该材料的微观组织及界面结构进行了研究。 观察表明TiAl3与α-Al基体之间存在(020)Al//(002)TiAl3, [001]Al//[110]TiAl3的位向关系, 力学性能测试结果表明喷射沉积Al-5.5Cu/TiAl3自生复合材料的抗拉强度较铸态的抗拉强度提高约12%, 延伸率提高450%, 耐磨性则提高150%。

 

关键字: Al基自生复合材料   微观组织   界面结构   喷射沉积

MICROSTRUCTURE AND INTERFACIAL STRUCTURE OF
Al-5.5Cu/TiAl3 IN SITU COMPOSITES PRODUCED
BY SPRAY DEPOSITION
Zhang Shuying, Chen Yuyong, Fan Hongbo, Chen Ziyong,
Chao Fuyang, Jiang Zhuling and Li Qingchun

Weihai branch, Harbin Institute of Technology, Weihai 264209, P. R. China
National Defense S and T key Lab of Metal Precision Hot Working, Harbin Institute of Technology, Harbin 150001, P. R. China

Abstract:Al-5.5Cu/TiAl3 in situ composites was produced by spray deposition, and the microstructure and interfacial structure of the materials were analyzed. The observation show that the orientation relationship between TiAl3 and α-Al is [001]Al//[1-10]TiAl3, (020)Al//(002)TiAl3. The mechanical properties of the materials were tested. The results show that the tensile strength of the materials produced by spray deposition is 112% of that produced by cast and the elongation isincreased to 550%, and the wear resistance is increased to about 250%.

 

Key words:   microstructure   interfacial structure   Al-based composites   spray deposition

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

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

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