Author/Authors :
Prashanth، نويسنده , , K.G. and Scudino، نويسنده , , S. and Klauss، نويسنده , , H.J. and Surreddi، نويسنده , , K.B. and Lِber، نويسنده , , L. and Wang، نويسنده , , Z. and Chaubey، نويسنده , , A.K. and Kühn، نويسنده , , U. and Eckert، نويسنده , , J.، نويسنده ,
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 :
Tensile behavior , Selective laser melting , Aluminum alloys , microstructure
