Statistical Distribution of Si Phases at Different Sr Levels in AlSi9 Alloys

İbrahim Halil Kalkan; İbrahim Göksel Hızlı; Kerem Can Dizdar; Cem Kahruman; Derya Dispinar

doi:10.1007/s13632-023-01035-0

Statistical Distribution of Si Phases at Different Sr Levels in AlSi₉ Alloys

İbrahim Halil Kalkan, İbrahim Göksel Hızlı, Kerem Can Dizdar, Cem Kahruman, Derya Dispinar^*

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

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

Abstract

Al–Si alloys are widely used in many automotive applications. Mechanical properties of this alloy group strongly depend on the size, shape, and distribution of silicon phase. Therefore, Sr is added to alloy to alter the needle-like shape to fibrous morphology in order to achieve higher fluidity, increase feedability, decreased porosity, and high mechanical properties. In this work, the effect of strontium modification on the AlSi₉ casting alloy were studied in detail. From 0 to 600 ppm, strontium was added to AlSi₉ casting alloy and microstructural changes were evaluated. Metallographic characterization carried out on each sample and size and distribution of Si phase was analyzed by image analysis tools. Texture and pore figures were analyzed by EBSD.

Original language	English
Pages (from-to)	130-144
Number of pages	15
Journal	Metallography, Microstructure, and Analysis
Volume	13
Issue number	1
DOIs	https://doi.org/10.1007/s13632-023-01035-0
Publication status	Published - Feb 2024

Bibliographical note

Publisher Copyright:
© ASM International 2024.

Keywords

Aluminium alloys
Metallography
Silicon
Statistics
Strontium modification

Access to Document

10.1007/s13632-023-01035-0

Cite this

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abstract = "Al–Si alloys are widely used in many automotive applications. Mechanical properties of this alloy group strongly depend on the size, shape, and distribution of silicon phase. Therefore, Sr is added to alloy to alter the needle-like shape to fibrous morphology in order to achieve higher fluidity, increase feedability, decreased porosity, and high mechanical properties. In this work, the effect of strontium modification on the AlSi9 casting alloy were studied in detail. From 0 to 600 ppm, strontium was added to AlSi9 casting alloy and microstructural changes were evaluated. Metallographic characterization carried out on each sample and size and distribution of Si phase was analyzed by image analysis tools. Texture and pore figures were analyzed by EBSD.",

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AU - Kalkan, İbrahim Halil

AU - Hızlı, İbrahim Göksel

AU - Dizdar, Kerem Can

AU - Kahruman, Cem

AU - Dispinar, Derya

N1 - Publisher Copyright: © ASM International 2024.

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Y1 - 2024/2

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