Effect of Sr addition on the microstructure and mechanical properties of ADC12/nano Al 2 O 3 composites produced by stir casting method

Anne Zulfia Syahrial,, Lalita Padma Puspita, Donanta Dhaneswara, Budi Wahyu Utomo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

The effects of Sr addition on microstructure and mechanical properties of ADC12/nano Al 2 O 3 composite has been studied. In this research ADC12 as a matrix was added by 0.3 vf% nano Al 2 O 3 as a reinforcement and Al-5Sr varied from 0.00 wt% to 0.05 wt% to modify the eutectic structure of the matrix. The composites were further characterized both microstructural analysis and mechanical properties. The results showed that the intermetallic phases including β-Al5FeSi and Al 2 Cu were detected using scanning electron microscope and α-Al(Mn,Fe)Si or α-cubic phases was possible to form due to high content of Mn in the composites. The Mg 2 Si primary, binary, and ternary phases were detected in this composites by metallographic examination. Then, MgAl 2 O 4 (spinnel) were found by XRD analysis. The higher of Sr content from 0,00 to 0.02 the lower SDAS formation from 15 μm to 14 μm as well as porosity content reduced from 4% to 3%. The ultimate tensile strength increased from 115 MPa to 137 MPa as well as in impact toughness from 0.016 J/mm 2 to 0.025 J/mm 2 . The highest hardness and the lowest wear rate were obtained with the addition of 0.05 wt% Sr with 46 HRB and 1.04 10 -5 mm 3 /m respectively due to the changed of chinese script became refined fibrous type.

Original languageEnglish
Title of host publicationProceedings of the International Seminar on Metallurgy and Materials, ISMM 2017
Subtitle of host publicationMetallurgy and Advanced Material Technology for Sustainable Development
EditorsM. Yunan Hasbi, Daniel Panghihutan Malau, Dhyah Annur, M. Ikhlasul Amal, Satrio Herbirowo, Yulinda Lestari
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416697
DOIs
Publication statusPublished - 15 May 2018
Event1st International Seminar on Metallurgy and Materials: Metallurgy and Advanced Material Technology for Sustainable Development, ISMM 2017 - Jakarta, Indonesia
Duration: 24 Oct 201725 Oct 2017

Publication series

NameAIP Conference Proceedings
Volume1964
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference1st International Seminar on Metallurgy and Materials: Metallurgy and Advanced Material Technology for Sustainable Development, ISMM 2017
CountryIndonesia
CityJakarta
Period24/10/1725/10/17

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