The Modified AlSi7Mg0.3 Cast Alloy Mechanical Properties Changes at Different Testing Temperatures

Lenka Hurtalová; Eva Tillová

doi:10.4028/www.scientific.net/KEM.635.13

Paper Titles

Preface and Committees

Changes of Mechanical Properties of AlSi7Mg0.3 Cast Alloy through Filtration
p.1

Fatigue Properties of Synthetic Nodular Cast Irons
p.5

The Fractography Analysis of IN 718 Alloy after Fatigue Test
p.9

The Modified AlSi7Mg0.3 Cast Alloy Mechanical Properties Changes at Different Testing Temperatures
p.13

The Influence of Severe Plastic Deformation on Structure and Mechanical Properties the Aluminium Alloy EN AW 6082
p.18

A Study on Sloshing Frequencies of Liquid-Tank System
p.22

Analysis of New Generation Material Solutions of Lower Structure for Energy Efficient Buildings
p.26

The Parameters Affecting Strength Calculation of Gears
p.30

HomeKey Engineering MaterialsKey Engineering Materials Vol. 635The Modified AlSi7Mg0.3 Cast Alloy Mechanical...

The Modified AlSi7Mg0.3 Cast Alloy Mechanical Properties Changes at Different Testing Temperatures

Abstract:

The Al-Si cast alloy mechanical properties and microstructure depends on the chemical composition; melt treatment conditions, solidification rate, casting process and the applied thermal treatment. Modification can be achieved by several methods as faster solidification, mould vibration, and melt inoculation by using chosen elements like Sr, Na, Sb, etc. Present work is focused on study of the effect of Sb-modification (with AlSb10 from 0 up to 300 ppm) on the structure and mechanical properties in AlSi7Mg0.3 cast alloy. AlSi7Mg0.3 alloy can be used for high temperature casting (e.g. engine, pistons) therefore is necessary to determine the properties at higher temperature. The mechanical properties were evaluated at room (21 °C) and 260 °C. The results show that the modification of experimental material is important. Experimental alloy has by optimal modification (50 ppm Sb) UTS at 260 °C above 100 MPa.

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Periodical:

Key Engineering Materials (Volume 635)

Pages:

13-17

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.635.13

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Online since:

December 2014

Authors:

Lenka Hurtalová*, Eva Tillová

Keywords:

Aluminium Alloy, Antimony, Higher Temperature of Testing, Mechanical Property, Modification

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