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CORROSION OF FERRITIC STAINLESS STEEL
Nama : Muhammad Yoga Ardiansyah
NPM : 333413!"1
No# A$s%n : "
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Si&a$us
P%ndahu&uan
'orosi
Pro(%)si
S(udi 'asus
'%sim*u&an
+a,(ar Pus(a)a
F%rri(i- S(ain&%ss S(%%&
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P%ndahu&uan
APA YAN. +IMA'S/+ +EN.AN STAINLESS
STEEL0
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a2a (ahan )ara( a(au &%$ih di)%na& d%ngan Stainless Steel s%&a&u di$ua( m%ngguna)an )romium# S%nyaa $%si yang
m%ngandung unsur Cr sedikitnya 10,5% un(u)
m%n-%gah *ros%s *%ng)orosian *ada &ogam# '%mam*uan
(ahan (%rhada* )orosi di*%ro&%h dari (%r$%n(u)nya &a*isan,i&m o)sida )romium dimana &a*isan o)sida ini
m%ngha&angi *ros%s o)sidasi $%si m%m$ua( $a2a ini (ahan
(%rhada* )orosi#
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STAINLESS STEEL
MARTENSITIC STAINLESS STEEL
FERRITIC STAINLESS STEEL
A/STENITIC STAINLESS STEEL
+/PLE5 STAINLESS STEEL
PRESIPITATION 6AR+ENIN. STAINLESSSTEEL
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F%rri(i- S(ain&%ss S(%%&
unsur paduan utama; Fe dan Cr struktur mikro terdiri fasa ferit (α) bcc
non heat treatable (tidak bisa dilakukan proses heat treatment)
dapat diperkeras dan diperkuat dengan cold working
bersifat magnetik
Aplikasi valve pada suhu tinggi, garpu, ruang
pembakaran
Contoh AII !"# dan AII !!$
7/23/2019 Corrosion of Ferritic Stainless Steel
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S(udi 'asus
1# S(ain&%ss S(%%& (i*% 47
!# 'na&*o( mo$i& d%ngan )om*osisi 8 C: !9
Cr: 119
Ni: !9
Mn : 339Si: 9
Ti: 1;9
dan *aduan u(ama F%
3# +iguna)an *ada )ondisi udara dingin d%ngan masa
*%ma)aian 1 (ahun
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COMPONENT OPERATIN.TEMPERAT/RE < C=ᵒ
6o( End Com*on%n(s
E>haus( mani,o&d ;?7
Fron( *i*% "?;
Ca(a&y(i- Con@%r(%r "?;
Co&d End Com*on%n(s
C%n(r% Pi*% 3?"
Mu,,&%r 1?3
Tai& Pi*% 1?3
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'orosi yang (%r2adi : 'orosi R%(a) T%gang'om*on%n : Mani,o&d %>haus(
di)ar%na)an (%r2adinya intergranular cracking a(au
transgranular cracking a(au*un )%duanya.
6a& ini dis%$a$)an adanya
(%m*%ra(ur (inggi s%hingga
m%nim$u&)an *r%si*i(asi
hi$rida (%m*%ra(ur ini $iasadis%$u( d%ngan (%m*%ra(ur
s%nsi(isasi
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'orosi yang (%r2adi : 'orosi sumuran
'om*on%n : Mu,,&%r
+i)ar%na)an )&orida yang(%r)andung *ada 2a&anan di
n%gara?n%gara d%ngan suhu yang
sanga( dingin# S%hingga *ada
n%gara?n%gara dingin da*a(
m%ning)a()an &a2u )orosi *ada
*%rmu)aan &uar )na&*o(#
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Pro(%)si
• P%&a*isan <coating = : 6o( +i* A&uminiing
• P%nam$ahan unsur N!
• A&&oying
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'%sim*u&an
• a2a (ahan )ara( ,%ri( (%rdiri a(as unsur *aduan u(ama $%ru*a F% dan Cr#
• 'orosi yang (%r2adi di )na&*o( *ada $agian mani,o&d
%>haus( ada&ah )orosi r%(a) (%gang
• 'orosi yang (%r2adi di )na&*o( *ada $agian mu,,&%r ada&ah
)orosi sumuran
• Pro(%)si :
6o( di* a&uminiingA&&oying
P%nam$ahan unsur N!
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+AFTAR P/STA'A
• Mau&ana F# 6irian# BP%ngaruh T%m*%ra(ur S%nsi(isasidan ariasi S(r%ss T%rhada* La2u 'orosi SS 47 *ada
Ling)ungan Sa&( S*rayD# !1#
• +#C# O&i@%r and M# S%*h(on# BE>(%rna& -orrosion
r%sis(an-% o, s(%%& and ,%rri(i- s(ain&%ss s(%%& %>haus(
sys(%msD# !3#
• h((*:#a)s(%%&#-om*d,mar)%(s*rodu-(ss(ain&%ss,
%rri(i-A&umini%d47?437+a(au&&%(in#*d,
• h((*:#dams(ah&#d)Fi&%si&&%d%r!11P+F/',%rr
i(i-#*d,
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TERIMA 'ASI6
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REISI
1# G%&as)an m%)anism% dari *%nam$ahan unsur *aduan N!H
Gaa$an : d%ngan m%&a)u)an *ros%s ni(ridasi *ada s(ain&%ss
s(%%& ni(ridasi m%ru*a)an *%r&a)uan *%ng%rasan
*%rmu)aan a(au *ros%s (%rmo)imia ,%ri(i) d%ngan
m%&i$a()an di,usi ni(rog%n )% da&am ,asa ,%ri( s(ain&%ss
s(%%& *ada (%m*%ra(ur (%r(%n(u dan $%r&angsung da&am
2ang)a a)(u (%r(%n(u (%rgan(ung dari (%$a& &a*isan a(au
a*&i)asi ma(%ria& yang diingin)an# iasanya
m%ngguna)an gas ni(rog%n a(au gas amonia) a(au-am*uran )%duanya
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!# A*a)ah ada unsur C& *ada )ondisi udara *anas0
Gaa$an : /nsur C& 2uga (%rda*a( *ada )ondisi udara yang
*anas namun unsur C& ini (ida) di(%mu)an da&am
)%adaan $%$as di)ar%na)an *ada a&am $%$as unsur C&
yang di(%mu)an $%ru*a gas C&!
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3# agaimana )%(ahan F%rri(i- S(ain&%ss S(%%& (%rhada*)orosinya0
Gaa$an : F%rri(i- S(ain&%ss S(%%& m%m*unyai )%(ahanan
yang $ai) (%rhada* )orosi di)ar%na)an si,a( &a*isan
o)sida yang (%r$%n(u) *ada *aduan $a2a dan )romiumyang m%ngandung &%$ih dari 1!9 )romium# P%ngaruh dari
)%(ahanan )orosi *ada ma-am?ma-am s(ain&%ss s(%%& yai(u
$anya)nya )andungan )romium <Cr= yang (%r)andung
*ada s(ain&%ss s(%%& s%ma)in $anya) )andungan )romium?nya ma)a s%ma)in (inggi )%(ahanan (%rhada* )orosinya#
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