Optimizing the addition of TiB to improve mechanical properties of the ADC 12/SiC composite through stir casting process

Cindy Retno Putri, Anne Zulfia Syahrial, Salahuddin Yunus, Budi Wahyu Utomo

Research output: Contribution to journalConference article

Abstract

The goal of this research is to improve the mechanical properties such as strength, hardness and wear resistance for automotive application such as brake shoe and bearings due to high cycle, load and impact during their usage. Therefore, another alloying element or reinforcement addition is necessary. In this work, the composites are made by ADC 12 (Al-Si aluminum alloy) as the matrix and reinforced with micro SiC through stir casting process and TiB is added various from (0.04, 0.06, 0.15, 0.3 and 0.5) wt.% that act as grain refiners and 5 wt.% of Mg is added to improve the wettability of the composites. The addition of TiB improves the mechanical properties because the grain becomes finer and uniform, and the addition of Mg makes the matrix and reinforce have better adhesion. The results obtained that the optimum composition was found by adding 0.15 wt.% of TiB with tensile strength improve from 98 MPa to 136.3 MPa, hardness from 35 to 53 HRB and wear rate reduced from 0.006 2 mm3 s-1 to 0.002 3 mm3 s-1 respectively.

Original languageEnglish
Article number01005
JournalE3S Web of Conferences
Volume130
DOIs
Publication statusPublished - 15 Nov 2019
Event1st International Conference on Automotive, Manufacturing, and Mechanical Engineering, IC-AMME 2018 - Kuta, Bali, Indonesia
Duration: 26 Sep 201828 Sep 2018

Keywords

  • Composite aluminum
  • Grain refiner TiB
  • Micro SiC

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