%A - Maherariyat	
%T PENGARUH PERENDAMAN PENUH (TOTAL IMMERSION)
MAGNESIUM AZ31B DALAM LARUTAN RINGER LAKTAT TERHADAP

PERILAKU KOROSI DAN KEKUATAN TARIK
%X Penelitian ini bertujuan untuk mengkaji pengaruh perendaman paduan magnesium
AZ31B dalam larutan Ringer laktat, yang menyimulasikan cairan tubuh, terhadap
perilaku korosi dan kekuatan tariknya. Pengujian laju korosi dilakukan setelah
perendaman selama 8 jam, 16 jam, dan 24 jam. Uji tarik statis dilakukan pada
spesimen yang dipotong searah dan berlawanan arah sebelum dan setelah
pengkorosan selama 24 jam. Morfologi permukaan patahan diperiksa menggunakan
scanning electron microscopy (SEM). Hasil menunjukkan bahwa sifat tarik seperti
kekuatan tarik maksimum, kekuatan mulur, modulus Young, dan perpanjangan raw
material AZ31B bervariasi tergantung arah pemotongan. Setelah pengkorosan 24
jam, sifat tariknya sedikit berbeda tapi perubahannya tidak signifikan. Laju korosi
setelah perendaman 8 jam adalah 0,05655 mmpy, 16 jam 0,03799 mmpy, dan 24
jam 0,02305 mmpy. Hasil korosi yang diamati berupa korosi pitting, korosi
intergranular, korosi tegangan, dan korosi celah. Secara keseluruhan, AZ31B
memiliki ketahanan korosi yang baik dengan laju korosi 0,02-0,1 mmpy.

Kata kunci : Mg AZ31B, korosi, perbedaan arah pemotongan, perlakuan
permukaan, tarik statis.
This study investigates the effects of immersing magnesium alloy AZ31B in Ringer's
lactate solution, which simulates body fluid, on its corrosion behavior and tensile
strength. Corrosion rate tests were conducted for 8, 16, and 24 hours, and static
tensile tests were performed on samples before and after 24 hours of corrosion,
with specimens cut in different directions. Scanning electron microscopy (SEM)
was used to examine the fracture surface morphology. The study found that the
tensile strength, yield strength, Young's modulus, and elongation values for the raw
AZ31B material varied depending on the cutting direction. After 24 hours of
corrosion, the tensile properties of the material were slightly different, but the
changes were not significant. The corrosion rates for 8, 16, and 24 hours of
immersion were 0.05655 mmpy, 0.03799 mmpy, and 0.02305 mmpy, respectively.
The corrosion results showed pitting corrosion, intergranular corrosion, stress
corrosion cracking, and crevice corrosion. Overall, AZ31B material exhibited
good corrosion resistance, with corrosion rates ranging from 0.02 to 0.1 mmpy.

Keywords: Mg AZ31B, corrosion, different cutting directions, surface treatment,
static tensile.
%C UNIVERSITAS LAMPUNG 
%D 2024
%I TEKNIK
%L eprints86727