Title

Section-dependent microstructure and mechanical properties of rapidly solidified and extruded Al-20Si alloy

Authors

Authors

S. J. Hong; C. Suryanarayana;B. S. Chun

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Mater. Res. Bull.

Keywords

alloys; metals; X-ray diffraction; microstructure; optical properties; ALUMINUM SILICON ALLOY; AL-SI ALLOYS; WEAR; Materials Science, Multidisciplinary

Abstract

The microstructure and mechanical properties of rapidly solidified and extruded Al-20Si alloys were studied by a combination of optical microscopy, scanning electron microscopy, X-ray diffraction, compression testing, and wear testing. The microstructure of the extruded bars showed a homogeneous distribution of different primary Si sizes and shapes embedded in the Al matrix depending on the section considered in the extruded bar. As the section changes from diagonal through perpendicular to parallel, the compressive yield strength increased from 219 through 225 to 263 MPa, respectively. The specific wear was the lowest at all sliding speeds for the parallel section in comparison to the perpendicular and diagonal sections of the extruded bar. (C) 2003 Elsevier Ltd. All rights reserved.

Journal Title

Materials Research Bulletin

Volume

39

Issue/Number

3

Publication Date

1-1-2004

Document Type

Article

Language

English

First Page

465

Last Page

474

WOS Identifier

WOS:000189322500014

ISSN

0025-5408

Share

COinS