Microstructure and mechanical properties of Al-12Si produced by selective laser melting: Effect of heat treatment

K. G. Prashanth; S. Scudino; H. J. Klauss; K. B. Surreddi; L. Löber; Z. Wang; A. K. Chaubey; U. Kühn; J. Eckert

doi:10.1016/j.msea.2013.10.023

Microstructure and mechanical properties of Al-12Si produced by selective laser melting: Effect of heat treatment

K. G. Prashanth, S. Scudino, H. J. Klauss, K. B. Surreddi, L. Löber, Z. Wang, A. K. Chaubey, U. Kühn, J. Eckert

Research output: Contribution to journal › Article › peer-review

550 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	153-160
Number of pages	8
Journal	Materials Science and Engineering A
Volume	590
DOIs	https://doi.org/10.1016/j.msea.2013.10.023
Publication status	Published - 2014 Jan 10

Keywords

Aluminum alloys
Microstructure
Selective laser melting
Tensile behavior

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2013.10.023

Cite this

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title = "Microstructure and mechanical properties of Al-12Si produced by selective laser melting: Effect of heat treatment",

abstract = "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.",

keywords = "Aluminum alloys, Microstructure, Selective laser melting, Tensile behavior",

author = "Prashanth, {K. G.} and S. Scudino and Klauss, {H. J.} and Surreddi, {K. B.} and L. L{\"o}ber and Z. Wang and Chaubey, {A. K.} and U. K{\"u}hn and J. Eckert",

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doi = "10.1016/j.msea.2013.10.023",

language = "English",

volume = "590",

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

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publisher = "Elsevier BV",

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TY - JOUR

T1 - Microstructure and mechanical properties of Al-12Si produced by selective laser melting

T2 - Effect of heat treatment

AU - Prashanth, K. G.

AU - Scudino, S.

AU - Klauss, H. J.

AU - Surreddi, K. B.

AU - Löber, L.

AU - Wang, Z.

AU - Chaubey, A. K.

AU - Kühn, U.

AU - Eckert, J.

PY - 2014/1/10

Y1 - 2014/1/10

N2 - 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.

AB - 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.

KW - Aluminum alloys

KW - Microstructure

KW - Selective laser melting

KW - Tensile behavior

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SP - 153

EP - 160

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

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

ER -

Microstructure and mechanical properties of Al-12Si produced by selective laser melting: Effect of heat treatment

Abstract

Keywords

ASJC Scopus subject areas

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