Comparative study of degassing method by using NaF-NaNO3-based tablet degasser, technical argon gas, and pure argon gas in aluminum casting

Donanta Dhaneswara, Muhammad Reza Firmansyah, Yus Prasetyo, Ahmad Ashari

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

Abstract

Casting is one of the methods commonly used to produce an aluminum product. Aluminum casting product's mechanical properties are a crucial parameter that indicates the quality of the casting product. In reality, the properties of aluminum casting product can be reduced by porosity defects that appear because of aluminum's high reactivity with hydrogen gas. Therefore, hydrogen gas that formed on melt aluminum should be removed by doing the degassing method. In this research, the result of the degassing process by using different materials was compared, it is by using NaF-NaNO3- based tablet degasser and argon gas, pure and technical. The melting temperature used in this research was 750 °C, and the aluminum was poured at 670 °C. The result shows that NaF-NaNO3-based tablet degasser and pure argon gas has the best ability to reduce the number of hydrogen gas formed in aluminum casting product. The aluminum casting product's mechanical properties were enhanced, for the ultimate tensile strength the highest elevation occurs from 62.17?MPa to 214.26?MPa, for the hardness strength the highest elevation occurs from 15 BHN to 79.67?MPa, and for the impact strength the highest elevation occurs from 0.202?J/mm2 to 0.408?J/mm2.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Seminar on Metallurgy and Materials, ISMM 2019
Subtitle of host publicationExploring New Innovation in Metallurgy and Materials
EditorsNono Darsono, Yudi Nugraha Thaha, Aga Ridhova, Ahmad Rhamdani, Muhammad Satrio Utomo, Faried Miftahur Ridlo, Mukhlis Agung Prasetyo
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419919
DOIs
Publication statusPublished - 21 Apr 2020
Event3rd International Seminar on Metallurgy and Materials: Exploring New Innovation in Metallurgy and Materials, ISMM 2019 - Tangerang Selatan, Indonesia
Duration: 23 Oct 201924 Oct 2019

Publication series

NameAIP Conference Proceedings
Volume2232
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Seminar on Metallurgy and Materials: Exploring New Innovation in Metallurgy and Materials, ISMM 2019
Country/TerritoryIndonesia
CityTangerang Selatan
Period23/10/1924/10/19

Keywords

  • Aluminum casting
  • argon
  • degassing
  • tablet degasser

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