Modification effect of Sr on the microstructures and mechanical properties of Al-10.5Si-2.0Cu recycled alloy for die casting

Sang Soo Shin; Eok Soo Kim; Gil Yong Yeom; Jae-chul Lee

doi:10.1016/j.msea.2011.10.076

Modification effect of Sr on the microstructures and mechanical properties of Al-10.5Si-2.0Cu recycled alloy for die casting

Sang Soo Shin, Eok Soo Kim, Gil Yong Yeom, Jae-chul Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

57 Citations (Scopus)

Abstract

The effect of Sr addition on the microstructure and mechanical properties of Al-10.5Si-2.0Cu (in wt%) recycled die-casting alloy was studied. With increasing Sr content, the morphology of the eutectic Si evolved from coarse acicular → lamellar → fine fibrous shapes. Sr addition significantly improved the mechanical properties, with the tensile strength being increased from 209 to 237. MPa and the elongation from 2.0 to 4.1%. This improvement was associated with the morphological evolution of the eutectic Si and was qualitatively evaluated by using a quality index.

Original language	English
Pages (from-to)	151-157
Number of pages	7
Journal	Materials Science and Engineering A
Volume	532
DOIs	https://doi.org/10.1016/j.msea.2011.10.076
Publication status	Published - 2012 Jan 15

Fingerprint

Keywords

Die-casting alloys
Eutectic si
Fine fibrous
Holding time
Modification
Strontium

ASJC Scopus subject areas

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

Cite this

Shin, S. S., Kim, E. S., Yeom, G. Y., & Lee, J. (2012). Modification effect of Sr on the microstructures and mechanical properties of Al-10.5Si-2.0Cu recycled alloy for die casting. Materials Science and Engineering A, 532, 151-157. https://doi.org/10.1016/j.msea.2011.10.076

@article{14deff8c269c4a6382d4b66bccc6e6a7,

title = "Modification effect of Sr on the microstructures and mechanical properties of Al-10.5Si-2.0Cu recycled alloy for die casting",

abstract = "The effect of Sr addition on the microstructure and mechanical properties of Al-10.5Si-2.0Cu (in wt%) recycled die-casting alloy was studied. With increasing Sr content, the morphology of the eutectic Si evolved from coarse acicular → lamellar → fine fibrous shapes. Sr addition significantly improved the mechanical properties, with the tensile strength being increased from 209 to 237. MPa and the elongation from 2.0 to 4.1%. This improvement was associated with the morphological evolution of the eutectic Si and was qualitatively evaluated by using a quality index.",

keywords = "Die-casting alloys, Eutectic si, Fine fibrous, Holding time, Modification, Strontium",

author = "Shin, {Sang Soo} and Kim, {Eok Soo} and Yeom, {Gil Yong} and Jae-chul Lee",

year = "2012",

month = jan

day = "15",

doi = "10.1016/j.msea.2011.10.076",

language = "English",

volume = "532",

pages = "151--157",

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

issn = "0921-5093",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Modification effect of Sr on the microstructures and mechanical properties of Al-10.5Si-2.0Cu recycled alloy for die casting

AU - Shin, Sang Soo

AU - Kim, Eok Soo

AU - Yeom, Gil Yong

AU - Lee, Jae-chul

PY - 2012/1/15

Y1 - 2012/1/15

N2 - The effect of Sr addition on the microstructure and mechanical properties of Al-10.5Si-2.0Cu (in wt%) recycled die-casting alloy was studied. With increasing Sr content, the morphology of the eutectic Si evolved from coarse acicular → lamellar → fine fibrous shapes. Sr addition significantly improved the mechanical properties, with the tensile strength being increased from 209 to 237. MPa and the elongation from 2.0 to 4.1%. This improvement was associated with the morphological evolution of the eutectic Si and was qualitatively evaluated by using a quality index.

AB - The effect of Sr addition on the microstructure and mechanical properties of Al-10.5Si-2.0Cu (in wt%) recycled die-casting alloy was studied. With increasing Sr content, the morphology of the eutectic Si evolved from coarse acicular → lamellar → fine fibrous shapes. Sr addition significantly improved the mechanical properties, with the tensile strength being increased from 209 to 237. MPa and the elongation from 2.0 to 4.1%. This improvement was associated with the morphological evolution of the eutectic Si and was qualitatively evaluated by using a quality index.

KW - Die-casting alloys

KW - Eutectic si

KW - Fine fibrous

KW - Holding time

KW - Modification

KW - Strontium

UR - http://www.scopus.com/inward/record.url?scp=83855163425&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=83855163425&partnerID=8YFLogxK

U2 - 10.1016/j.msea.2011.10.076

DO - 10.1016/j.msea.2011.10.076

M3 - Article

AN - SCOPUS:83855163425

VL - 532

SP - 151

EP - 157

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

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

SN - 0921-5093

ER -

Access to Document

10.1016/j.msea.2011.10.076