Extruded hot compacted alumix 431 powder - mechanical properties and microstructure-Reference-Cited by-同舟云学术

Extruded hot compacted alumix 431 powder - mechanical properties and microstructure

Published:2023 Issue:1 Volume:55 Page:115-125
ISSN:0350-820X
Container-title:Science of Sintering
language:en
Short-container-title:SCI SINTER

Author:

Szczepanik Stefan¹,Nikiel Piotr¹

Affiliation:

1. Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Krakow, Poland

Abstract

Extrusion at 450?C of hot compacted premixed aluminium alloy powder 7075 resulted in full density and banded microstructure with the average transverse grain size of 13.6 ?m after T6 heat treatment. It increased mechanical properties to yield and tensile stresses of 457 and 492 MPa, respectively and elongation 6.4 %. These meet the requirements of the ASTM standard ASM for 7075T6 conventionally manufactured alloy of similar chemical composition. The respective microstructures were compared and also to that of previously reported extruded fully dense 7075 Al which was not heat treated, and so possessed lower mechanical properties, yield and tensile stresses 254 and 402 MPa, respectively and elongation 10.4 %.

Publisher

National Library of Serbia

Subject

Materials Chemistry,Metals and Alloys,Condensed Matter Physics,Ceramics and Composites

Reference19 articles.

1. G. B. Schaffer, S. H. Huo, Advances in Powder Metallurgy & Particulate Materials 14 (1996)14-27.

2. G. B. Schaffer, S.H. Huo, Powder Metall., 42 (3) (1999) 219.

3. G. B. Schaffer, T. B. Sercombe, S. H. Huo, B. J. Hall, J. A. Sparklin, Proc. of Euro PM2004, 2 (2004) 11-16.

4. R. M. Brick; A. W. Pense, R. B. Gordon. Structure and properties of engineering materials. Mc.Graw-Hill, New York, 1977.

5. T. Schubert, T. Pieczonka, S. Baunack, B. Kieback, Sintering, Euro PM2005, 1 (2005) 3-8.