STUDI PENGARUH KETEBALAN CORAN TERHADAP STRUKTUR MIKRO DAN KEKERASAN BESI COR PADA KASUS PEMBUATAN BESI COR VERMICULAR
Abstract: This work conducted to
study the effect of
section size on the
microstructure and hardness of cast iron with 0,07 % Mg content. The
chemical composition of the alloyed used was 2,63 %C-2,41 %Si-0,428 %Mn-0,006
%S-0,07 %Mg-0,021%Ti-0,068
%Cr-0,043 %Ni-0,123 %Cu-0,022
%W-0,019 %Mo-0,009 %Al-0,006 %Co-0,007
%V.The section size
of casts were
varied10 mm, 20 mm,
30 mm and
40 mm using
green sand mold.
Results show that microstructure and
hardness of the
cast were affected
by the section
size. A thinner section
size promotes harder,
more pearlite phase
and nodular graphite
stucture.Nodular graphite structures were obtained at 10 mm, 20 mm and 30 mm
wall thickness. While vermicular graphite structure was obtained at 40 mm wall thickness.
Penulis: Eko Surojo, Didik
Djoko Susilo, Teguh Triyono, Muhammad Lukman K
Kode Jurnal: jptmesindd120017
