Fabrication of Al/Al3Ti Functionally Graded Materials by Reaction Centrifugal Mixed-Powder Method

被引：13

作者：

El-Hadad, Shimaa ^{[1
,2
]}

Sato, Hisashi ^{[1
]}

Miura-Fujiwara, Eri ^{[1
]}

Watanabe, Yoshimi ^{[1
]}

机构：

[1] Nagoya Inst Technol, Dept Engn Phys Elect & Mech, Nagoya, Aichi 4668555, Japan

[2] Cent Met Res & Dev Inst, Mfg Technol Dept, Cairo, Egypt

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2011年 / 50卷 / 01期

关键词：

IN-SITU; VOLUME FRACTION; PARTICLE-SIZE; WEAR BEHAVIOR; ORIENTATION; DISTRIBUTIONS; ALUMINUM; GRADIENT; PLATELET; SYSTEM;

D O I：

10.1143/JJAP.50.01AJ02

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Formation of compositional gradient in Al/Al3Ti Functionally graded materials (FGMs) fabricated by the centrifugal method (CM) depends mainly on the centrifugal force and the processing temperature. In this study, a novel centrifugal method, reaction centrifugal mixed-powder method (RCMPM), was proposed to fabricate Al/Al3Ti FGMs under fixed centrifugal force (G 80). The effects of RCMPM processing temperature on the formation of Al3Ti intermetallics, its morphology and its distribution in the fabricated Al/Al3Ti FGMs have been investigated. Fine granular Al3Ti were observed at relatively lower processing temperature while the known coarse platelet-like particles of Al3Ti could be achieved at higher casting temperatures. Moreover, Ti3Al intermetallics compound and unreacted Ti phases are also observed along with Al3Ti particles. In addition, distribution of Al3Ti intermetallics size and their volume fraction showed a significant change when the Al/Al3Ti FGMs processed at different temperatures relative to the liquidus temperature of the master alloy. (C) 2011 The Japan Society of Applied Physics

引用

页数：7

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