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.
Tensile behavior
Selective laser melting
Microstructure
Aluminum alloys
Författare
K.G. Prashanth
Leibniz-Gemeinschaft
S. Scudino
Leibniz-Gemeinschaft
H.J. Klauß
Leibniz-Gemeinschaft
Kumar Babu Surreddi
Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik
L. Löber
Leibniz-Gemeinschaft
Z. Wang
Leibniz-Gemeinschaft
A.K. Chaubey
Institute of Minerals and Materials Technology India
Leibniz-Gemeinschaft
U. Kühn
Leibniz-Gemeinschaft
Juergen Eckert
Leibniz-Gemeinschaft
Technische Universität Dresden
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
0921-5093 (ISSN)
Vol. 590 153-160Ämneskategorier (SSIF 2011)
Materialteknik
DOI
10.1016/j.msea.2013.10.023