Improved mechanical properties of near-eutectic Al-Si piston alloy through ultrasonic melt treatment

Jae Gil Jung; Sang Hwa Lee; Jung Moo Lee; Young Hee Cho; Su Hyeon Kim; Woon Ha Yoon

doi:10.1016/j.msea.2016.05.087

Improved mechanical properties of near-eutectic Al-Si piston alloy through ultrasonic melt treatment

Jae Gil Jung
, Sang Hwa Lee
, Jung Moo Lee^*
, Young Hee Cho
, Su Hyeon Kim
, Woon Ha Yoon

^*Corresponding author for this work

Metallurgical System Engineering

Korea Institute of Materials Science

Research output: Contribution to journal › Journal article › peer-review

89 Scopus citations

Abstract

The effects of ultrasonic melt treatment (UST) on the microstructure and mechanical properties of Al-12.2Si-3.3Cu-2.4Ni-0.8Mg-0.1Fe (wt%) piston alloy were systematically investigated. Rigid colonies consisting of primary Si, eutectic Si, Mg₂Si and various aluminides (ε-Al₃Ni, δ-Al₃CuNi, π-Al₈FeMg₃Si₆, γ-Al₇Cu₄Ni, Q-Al₅Cu₂Mg₈Si₆ and θ-Al₂Cu) were observed in the as-cast alloys. The sizes of the secondary phases, eutectic cell and grain were significantly decreased by UST because of the enhanced nucleation of each phase under ultrasonic irradiation. The yield strength, tensile strength and elongation at 25 °C were significantly improved by UST mainly because of the refinement of the microstructures. Both tensile strength and elongation at 350 °C were also improved by UST despite the unchanged yield strength.

Original language	English
Pages (from-to)	187-195
Number of pages	9
Journal	Materials Science and Engineering: A
Volume	669
DOIs	https://doi.org/10.1016/j.msea.2016.05.087
State	Published - 2016.07.4

Keywords

Mechanical properties
Metals and alloys
Microstructure
Ultrasonics

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10.1016/j.msea.2016.05.087

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@article{84d23ad089d94579a375fefb18bd3dd6,

title = "Improved mechanical properties of near-eutectic Al-Si piston alloy through ultrasonic melt treatment",

abstract = "The effects of ultrasonic melt treatment (UST) on the microstructure and mechanical properties of Al-12.2Si-3.3Cu-2.4Ni-0.8Mg-0.1Fe (wt\%) piston alloy were systematically investigated. Rigid colonies consisting of primary Si, eutectic Si, Mg2Si and various aluminides (ε-Al3Ni, δ-Al3CuNi, π-Al8FeMg3Si6, γ-Al7Cu4Ni, Q-Al5Cu2Mg8Si6 and θ-Al2Cu) were observed in the as-cast alloys. The sizes of the secondary phases, eutectic cell and grain were significantly decreased by UST because of the enhanced nucleation of each phase under ultrasonic irradiation. The yield strength, tensile strength and elongation at 25 °C were significantly improved by UST mainly because of the refinement of the microstructures. Both tensile strength and elongation at 350 °C were also improved by UST despite the unchanged yield strength.",

keywords = "Mechanical properties, Metals and alloys, Microstructure, Ultrasonics",

author = "Jung, \{Jae Gil\} and Lee, \{Sang Hwa\} and Lee, \{Jung Moo\} and Cho, \{Young Hee\} and Kim, \{Su Hyeon\} and Yoon, \{Woon Ha\}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

month = jul,

day = "4",

doi = "10.1016/j.msea.2016.05.087",

language = "English",

volume = "669",

pages = "187--195",

journal = "Materials Science and Engineering: A",

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T1 - Improved mechanical properties of near-eutectic Al-Si piston alloy through ultrasonic melt treatment

AU - Jung, Jae Gil

AU - Lee, Sang Hwa

AU - Lee, Jung Moo

AU - Cho, Young Hee

AU - Kim, Su Hyeon

AU - Yoon, Woon Ha

PY - 2016/7/4

Y1 - 2016/7/4

N2 - The effects of ultrasonic melt treatment (UST) on the microstructure and mechanical properties of Al-12.2Si-3.3Cu-2.4Ni-0.8Mg-0.1Fe (wt%) piston alloy were systematically investigated. Rigid colonies consisting of primary Si, eutectic Si, Mg2Si and various aluminides (ε-Al3Ni, δ-Al3CuNi, π-Al8FeMg3Si6, γ-Al7Cu4Ni, Q-Al5Cu2Mg8Si6 and θ-Al2Cu) were observed in the as-cast alloys. The sizes of the secondary phases, eutectic cell and grain were significantly decreased by UST because of the enhanced nucleation of each phase under ultrasonic irradiation. The yield strength, tensile strength and elongation at 25 °C were significantly improved by UST mainly because of the refinement of the microstructures. Both tensile strength and elongation at 350 °C were also improved by UST despite the unchanged yield strength.

AB - The effects of ultrasonic melt treatment (UST) on the microstructure and mechanical properties of Al-12.2Si-3.3Cu-2.4Ni-0.8Mg-0.1Fe (wt%) piston alloy were systematically investigated. Rigid colonies consisting of primary Si, eutectic Si, Mg2Si and various aluminides (ε-Al3Ni, δ-Al3CuNi, π-Al8FeMg3Si6, γ-Al7Cu4Ni, Q-Al5Cu2Mg8Si6 and θ-Al2Cu) were observed in the as-cast alloys. The sizes of the secondary phases, eutectic cell and grain were significantly decreased by UST because of the enhanced nucleation of each phase under ultrasonic irradiation. The yield strength, tensile strength and elongation at 25 °C were significantly improved by UST mainly because of the refinement of the microstructures. Both tensile strength and elongation at 350 °C were also improved by UST despite the unchanged yield strength.

KW - Mechanical properties

KW - Metals and alloys

KW - Microstructure

KW - Ultrasonics

UR - https://www.scopus.com/pages/publications/84969988141

U2 - 10.1016/j.msea.2016.05.087

DO - 10.1016/j.msea.2016.05.087

M3 - Journal article

AN - SCOPUS:84969988141

SN - 0921-5093

VL - 669

SP - 187

EP - 195

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Improved mechanical properties of near-eutectic Al-Si piston alloy through ultrasonic melt treatment

Abstract

Keywords

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