Efek Dendrite Arm Spacing terhadap Sifat Mekanis Paduan Perunggu Cu-20%Sn

  • I Ketut Gede Sugita
  • R. Soekrisno
  • I Made Miasa
  • Suyitno -

Abstract

The purpose of this work is to investigate the effect of dendrite arm spacing on mechanical properties bronze20%Sn alloys The commercial pure copper and tin were melted in crucible furnace at temperature 1000oC. The molten metalwas casted in permanent moulds which have variation temperature, i.e. 35oC, 200oC, 400oC. The history of coolingtemperature on castings was recorded using a computer aided data acquisition Lab view 8.2 system.The microstructure and mechanical properties of this alloy have been investigated. The results of this researchindicate that decreasing the mould temperature affected on increasing solidification rate that caused to reduce thesolidification time. On the other hand, the difference of solidification rate have effected on microstructure forms. Thedendrite arm spacing (DAS) decreases with increasing solidification rate. DAS affected on mechanical properties i.e.ultimate tensile strength and hardness as cast. The mechanical properties increase with decreasing DAS.

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Author Biographies

I Ketut Gede Sugita
Jurusan Teknik Mesin dan Industri Fakultas Teknik Universitas Gadjah Mada Jl. Grafika no 2, 5528Yogyakarta, Indonesia.
R. Soekrisno
Jurusan Teknik Mesin dan Industri Fakultas Teknik Universitas Gadjah Mada Jl. Grafika no 2, 5528Yogyakarta, Indonesia.
I Made Miasa
Jurusan Teknik Mesin dan Industri Fakultas Teknik Universitas Gadjah Mada Jl. Grafika no 2, 5528Yogyakarta, Indonesia.
Suyitno -
Jurusan Teknik Mesin dan Industri Fakultas Teknik Universitas Gadjah Mada Jl. Grafika no 2, 5528Yogyakarta, Indonesia.
How to Cite
SUGITA, I Ketut Gede et al. Efek Dendrite Arm Spacing terhadap Sifat Mekanis Paduan Perunggu Cu-20%Sn. Jurnal Energi Dan Manufaktur, [S.l.], nov. 2012. ISSN 2541-5328. Available at: <https://ojs.unud.ac.id/index.php/jem/article/view/2340>. Date accessed: 16 jan. 2021.
Section
Articles

Keywords

Tin bronze, dendrite, dendrite arm spacing (DAS), and microstructure