飞机铝合金结构连接部位的腐蚀研究
- 格式：pdf
- 大小：329.41 KB
- 文档页数：4
( $ ~ ~ % , $ # E , $ % f i % . % % & ~ f ? i~ ld@ [ ~@ @ J & i $ l @ ].+
~%%jP%t6i,2005,25(3):186 -190)
[ 9 ] Bucliheit R C, Jr,Moran J P,Stoner C; E.Localizei1 corrosion hehavior of alloy 2090- the role of nlicrostructural he~erogrneity [ J ] . Corrosion. 1990,46( 8):610-617
joint nail
7
damp and hot testing time: 168h; T= ( 4 3 f 2)"C; RH= ( 9 5 f 3 ) %
ultraviolet radiation testing time: 24h; T= ( 5 5 f 3)"C
I1
low temperature fatigue testing T= ( - 5 3 f 5)"C; 0 ,,,=IlOMPa. R=O. I, loading times: 500 cycles
[ 101 Eraun R.Exfoliation con-osion testing of aluminium alloys[J]. Br.
Con-os. J., 1995,30(30):203-208
c33hJx1, tX;rN,$#E%.%2$3I&$k&*khtHZS:68%%:&
[~].+I~R~%~jP~%.2004,24( 1156-57)
alloy plate[.l]. Metall. Trans., 1981,12A:535-541 [ 4 ] Chrn (! Z.A technique system rrsearch on the (,almdar life of aircraft struc.turr under corrosive environmmt[n].Beijing: Beijing U-
,-
g
,
+
[ 6 ] 1.i D, Zou
S Z , Gun B L. Study
on exfoliation behavior of LY12
@t k ! G;%&&B$A&H$3h3%fkfl$$fi!P, $ QE L I%fi%?E ($&,&rAj:&,$l522.~~12 %6&3I&47%H%[.r].+mB@l! @$~,hh!UiRW%~JU@dk&!i% @ ~ I I ~ ~ S E ,%% tj%tPW%, 1995.15(3) :203-209) b R ,I %& [ 7 ] Cai J , 1,iu M . I.un z H , et aI. study on acceleratrtl tests h r alufi* ~&&!l@A%f%%&Kq , mfiwz?@l~%%~f~fl alloy atmospheric conr~sion [ J ] . J. Chin. Soc. Con-0s. minum prot., 2005,25(5): 262 -266 ;%gc $36,Eh$gqbL@j=gZCAB$fitGj~b9g (g#y, %I]%,F & $ G % . E ~ ; % % % A % B @ ~ D % X % ~ ~ ~ ~%FdAE3Gh@!iIn, !$B~$A+WTF , - flBt;,lb. 1 [J].lP FlR%rti-%Piit,Li7tM,20O5, 25(5): 262 -266) @C~U -T%&&iStZ33!ilX+%%\@tkb9@A@,Bo [ 8 ] Su J X,Zliang Z .Cao F H , rt al. Review on thr intergran~~lar cor0
%27%%6B 2007 $ 12 R
q ~@t&%%fp%tE
Journal of Chinese Society for Corrosion and Protection
Vo1.27 No .6 Dee. 2007
m
'2 NaCl @?& ) .3.5% NaCl ?g?&E?g. 7 1 .EXCO @ ?&( 50 g KC1 + 234 g NaCl+ 6.3 rnL HNO,(70%), f1~&&77kE L )'E?Br 1 "'@E!BBX4j$$t&i3-@ I'.' ( Mm@$dB&$&&B?fi% 5% NaC1+ 0.8% Na2S0, + 0.05% NaNO,,pH % 4 5 , H HC1 $U NaOH ilrfl
[ 3 ] Maitra S , English
(3
[ I 1] Zhang W L.Franke1
; (
S. Localized corrosion growth kinetics in
C. Mechanism of localiard corrosion of 7075
AA2024 alloys[J]. Electrochrm. Soc.,2002,149(22):R5 10-B5 19
'
&%;%FB%g NaCl ?@?&I& ( 3.5% 5%
35 ) %3&@RB~gH@t&%T%o 2g6RR&z
ssTge&mge$n~~uEeg&e ,%B~RXTR
Fig.1 Corrosion feature of the joint section of aluminum alloy structure of a certain type aircraft
0
+
%I%
Fig. 7 SEM in~ageof pitting
Fig. 8 EPMA micrographs of ( a ) basr alloy anti ( h ) deposit phase
nivrrs~tyof Armnautirs ant1 Astronautics, 1999:lO-25 E$4%Gq ?$ET&EA%i$SEiRf&,&WEo i V S El [DIAL R t & I $ l ' ~ l b ~ ~ ~ ~l ~' , 3 l ~ @,G~%!i! (%8?2. %fi%%%TXtA%+hE%&$3347$%683 ,&\t&la & ~ ~ ~ ~ , 5,: :jk+:fit?fi%jc+, 1999: 10-25) $11 i* [ 5 ] Sun Y,Hu J.Corrosion and Control of Metal [MI. Harbin: Harbin ( 2 1 %&&%tg@&%g@E kb~!i!@~kf&fk Industv and Tecllnology University Press, 2003:92-93 ,&@542Jl$T!Rt&b9 ~ ' . 9 % % & $ ~ , @ @ b ~ @ $ $ mi!-%, ( F I \ A , & A B . $E@t& ?@f!l[M].%$j;$?: %fi<j,ET.!ICAWd: 2003:92-93) 3!i13 E~~figB~~T%&zla%G-~z:g-%,f&*i:, %PI#
~
L
1
Fie.3 Accelerated corrosion testine orocess and its n "
chart
Fig.6 Photograph of exfoliation corrosion under coating
E T E R % R 3 & R @ / J \ ? L % EJ%-RER, 2$kG%? !Zb9,6tdio A%k8&%j5&4$+TJ@Mjk&+3M&f&T FMiL?iSBJ5+RJliJ b9%E&,6t&%fl3%, ,6t&%HB b9 !aEW+%jE@+H El 7 1 ( *ZC["lE&, & t & T L M h t J , ~J\TL;~;%FI&E w ~ t & , c (;il?Lmtlamsg, ~ ~ ~ b 9 7 ~ t : l e 19?L!4$G?&@fk7 E3&E%@%+BHQ 9nRg &3- Cl- b97K-%?&+ P B + R % % Z E E , ? L h & J Z B ?%L&fi%jf-7Kf#. %%?L h pH @I%, %?@@fk, 7k@?%k 89 H+ 7FaTL !4 @I Cl K@@t&?L1fi11%b.tl A1 %@E!kEl # f k E E % A1 Al" + 3e (1) Al" + H,O + CI--+ AlOHCI' (2) Al" + 3H++ 2C1-+ 3/2H, + AlC1; (3) 63Ri2?g155." ,%2&&$A&B$2k$9Ik@31B$, $fi~&&2EtZ$€I( 6 +I3 ) %7RAfi$fiRL% s #-€I, t&tT% ,% 1 i-~I$$n?R@+H%%@m$ki%* tfi ( EPMA %&%,a %X$ET&k#%Btdi3IiZ ,8 b9 SEM Kgt-,l 8h x$ET&#,~'L%,~~'IK@$BM ! E [fl 09 SEM ,EW, i4 8 1 @%,?K!ii+h%t&@i8I+Si$&4fi%E SH fimit:ifnsaWs*-%o~i k ; t i a i iQ .m m ) ,A1 %?!%$~% Cu Z % $ i % ,q@?J!!!?E@ $CUAI~,Z~LY~R!!$Z~ ,?X@$i%%b'!Ii&$fk% I % E+i-&@o %, i % I + $ % f i ~ % @ ~ & $ % ~ $ I k % @ h ~
