JURNAL TEKNOLOGI TECHNOSCIENTIA
Technoscientia Vol 2 No 1 Agustus 2009

PENGARUH TEMPERATUR TEMPER TERHADAP SIFAT MEKANIK DAN KETAHANAN KOROSI PADUAN Fe-1,52Al-1,44C

Kartikasari, Ratna (Unknown)



Article Info

Publish Date
01 Aug 2009

Abstract

On the basis of economic and lower density considerations, Fe-Al-C alloy could be a good candidate for replacing some of the conventional stainless steel. Wherein, Al is used to replace the expensive alloy element in conventional Fe-Cr-C system. The aim of the research is to investigate tempering temperature influence to mechanical properties and corrosion resistance of Fe-1,52Al-1,44C in the 3.5% NaCl solution. Fifty kilograms of Fe-Al-C were prepared from mild steel scrap, high purity aluminium, and Fe-C. The alloy was prepared in a high frequency induction furnace with alloying was done in the ladle. Optical microstructure, mechanical properties and corrosion rate were examined. The corrosion rate, were carried out with immersion methode in 3.5% NaCl. The optical micrograph shows that as cast Fe-1,52Al-1,44C alloy has ferrite and pearlite microstructure and has tendency to become ferritic microstructure with encreasing tempering temperature. Maximun tensile strength and maximum hardness took placed after hardening that was respectively 74,44kg/mm2 and 298,7 VHN. Maximum elongation was reached at 450oC tempering temperature. The result of corrosion testing showed that the alloy has decreasing corrosion rate with the increasing tempering temperature.

Copyrights © 2009






Journal Info

Abbrev

technoscientia

Publisher

Subject

Earth & Planetary Sciences Engineering

Description

JURNAL TEKNOLOGI TECHNOSCIENTIA dengan ISSN: 1979-8415 dan E-ISSN: 2714-8025 merupakan jurnal ilmiah yang diterbitkan LPPM Institut Sains & Teknologi AKPRIND Yogyakarta sebagai wahana publikasi karya ilmiah/penelitian di bidang teknologi atau rekayasa meliputi bidang teknik kimia, teknik industri, ...