Effect of Al-TiB Addition on the Mechanical Properties and Microstructure of Al-ADC12/NanoSiC Produced by Stir Casting Methods

Donanta Dhaneswara, Anne Zulfia Syahrial,, T. P. Pramudita, Deni Ferdian, B. W. Utomo

Research output: Contribution to journalConference articlepeer-review

Abstract

Addition of Ti-B grain refiner in Al-ADC12/nanoSiC composite results in improvement of tensile strength, hardness, and wear resistance through grain refinement. In this research, composite of Al-ADC12/nano SiC (0.15 %vf) with variations of TiB respectively (0.0), (0.02), (0.04), (0.06), dan (0.08) wt% were produced by stir casting. 10% of Mg were added to promote wettability between reinforce and matrix. It was found the best addition of TiB is 0.04 wt% Ti-B which results 135,9 MPa in tensile strength, 46 HRB in hardness, and 1.47x10-5 mm3/s as wear rate. The increase in mechanical properties of composites mainly because of Al3Ti acts as nucleants which initiates the grain refinement and the existence of MgAl2O4 phase indicates an interphase between nano SiC and ADC12 matrix. However, the increase of Ti-B addition after optimum number gives no significant results. High composition of iron and magnesium addition will form intermetallic phase β-Fe, π-Fe, and Mg2Si.

Original languageEnglish
Article number012044
JournalIOP Conference Series: Materials Science and Engineering
Volume333
Issue number1
DOIs
Publication statusPublished - 6 Apr 2018
Event2nd International Conference on Advanced Material for Better Future 2017, ICAMBF 2017 - Surakarta, Indonesia
Duration: 4 Sep 20175 Sep 2017

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