3-DIMENSIONAL MICROSTRUCTURE OF AL-AL3TI ALLOY SEVERELY DEFORMED BY ECAP

被引：0

作者：

Sato, Hisashi ^{[1
]}

Hishikawa, Takahisa ^{[1
]}

Makino, Yuuki ^{[2
]}

Kunimine, Takahiro ^{[1
]}

Watanabe, Yoshimi ^{[1
]}

机构：

[1] Nagoya Inst Technol, Grad Sch Engn, Showa Ku, Gokiso Cho, Nagoya, Aichi 4668555, Japan

[2] Nagoya Inst Technol, Dept Mech Engn, Showa Ku, Nagoya, Aichi 4668555, Japan

来源：

PROCEEDINGS OF THE 13TH INTERNATIONAL CONFERENCE ON ALUMINUM ALLOYS (ICAA13) | 2012年

关键词：

3-dimentional observation; Al-Al3Ti; ECAP; solid particle;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Microstructure of Al-Al3Ti alloy deformed by Equal-Channel-Angular Pressing (ECAP) is 3-dimensionally investigated. Especially, distribution of Al3Ti particles is focused in this study. The Al-Al3Ti alloy has coarse Al3Ti platelet particles in alpha-Al matrix. When the Al-Al3Ti alloy is deformed by ECAP under route A, fine Al3Ti platelet particles are observed. These Al3Ti platelet particles are aligned along to deformation axis, and its plane normal is perpendicular to the deformation axis. On the other hand, Al-Al3Ti alloy ECAPed under route Bc forms several groups consisted of fine Al3Ti platelet particles. Moreover, longitudinal size of the Al3Ti particle groups is close to that of initial Al3Ti particles with 4-pass ECAP specimen. These distribution behaviors of the Al3Ti particle can be explained by plastic flow of alpha-Al matrix. Finally, it is concluded that distribution of Al3Ti particle in Al-Al3Ti alloy by ECAP is controlled by plastic deformation of alpha-Al matrix.

引用

页码：1575 / 1580

页数：6

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