Microstructure and mechanical properties of Al-12Si produced by selective laser melting: Effect of heat treatment
Artikel i vetenskaplig tidskrift, 2014

Al-12Si specimens are produced by selective laser melting (SLM) from gas atomized powders. An extremely fine cellular structure is observed with residual free Si along the cellular boundaries. Room temperature tensile tests reveal a remarkable mechanical behavior: the samples show yield and tensile strengths of about 260. MPa and 380. MPa, respectively, along with fracture strain of ~3%. The effect of annealing on microstructure and related tensile properties is examined and the results demonstrate that the mechanical behavior of the Al-12Si SLM samples can be tuned within a wide range of strength and ductility through proper annealing treatment.

Aluminum alloys

Tensile behavior

Selective laser melting

Microstructure

Författare

K.G. Prashanth

Leibniz-Institut fur Festkorper- und Werkstoffforschung Dresden

S. Scudino

Leibniz-Institut fur Festkorper- und Werkstoffforschung Dresden

H.J. Klauß

Leibniz-Institut fur Festkorper- und Werkstoffforschung Dresden

Kumar Babu Surreddi

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

L. Löber

Leibniz-Institut fur Festkorper- und Werkstoffforschung Dresden

Z. Wang

Leibniz-Institut fur Festkorper- und Werkstoffforschung Dresden

A.K. Chaubey

Leibniz-Institut fur Festkorper- und Werkstoffforschung Dresden

Institute of Minerals and Materials Technology India

U. Kühn

Leibniz-Institut fur Festkorper- und Werkstoffforschung Dresden

Juergen Eckert

Leibniz-Institut fur Festkorper- und Werkstoffforschung Dresden

Technische Universität Dresden

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

0921-5093 (ISSN)

Vol. 590 153-160

Ämneskategorier

Materialteknik

DOI

10.1016/j.msea.2013.10.023