KS D 0293-2009 Method of measurement of hydrogen permeation and determination of hydrogen uptake and transport in metals by an electrochemical technique 《利用电气化学方法测量金属内部氢吸收率与氢扩计数的.pdf

1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS D 0293 KS D 0293:2009 2009 12 29 http:/www.kats.go.krKS D 0293:2009 : ( ) ( ) () POSCO () () () () () KIST ( ) : (http:/www.standard.go.kr) ： ：2009 12 29 2009-0975 ： ： ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS D 0293:2009 Method of measurement of

2、 hydrogen permeation and determination of hydrogen uptake and transport in metals by an electrochemical technique 1 1.1 (hydrogen permeability) (hydrogen diffusivity) . “ ” “ ” . 1.2 (steady-state) (hydrogen flux) , (effective diffusivity of hydrogen) (reversible), (irreversible) (trapping) . 1.3 ,

3、, , . 1.4 . . 2 . 2.1 (charging) , , , 2.2 (charging cell) 2.3 (decay current) KS D 0293:2009 2 2.4 2 (Ficks second law) 2 2.5 (hydrogen flux) 2.6 (irreversible trap) . . 2.7 (mobile hydrogen atoms) , 2.8 (oxidation cell) 2.9 (permeation current) 2.10 (permeation flux) 2.11 (recombination poison) 2.

4、12 (reversible trap) . . 3 Am2 C(x, t)mol m3 Comol m3 CoRmol m3 KS D 0293:2009 3 Dlm2 s1 Deffm2 s1 J(t)/Jss 0.63 FC mol1 (F 96 485 C mol 1) J(t)mol m2s 1 Jssmol m2s 1 J(t)/Jss1 I(t)A m2 IssA m2 Lm ts tbs tlags J(t)/Jss 0.63 xm 1 (Dlt/L2) lag1 J(t)/Jss 0.63 4 4.1 . ： 10： 1 . 4.2 4.2.1 , . 4.2.2 . a)

5、(EDM) b) . . . 1 . 2 . 4.2.3 . 4.2.4 5 % . 4.2.5 . KS D 0293:2009 4 , . . 4.2.6 , . , . 4.2.7 . , , . . , . . 5 (Apparatus) . ( .) , . (luggin probe) . , . 2 3 mm . . 50 ( ) , . 90 (PTFE) . , , . , . . (saturated calomel electrode, SCE) , / . . . KS D 0293:2009 5 A B 1 2 3 a b 1 (polyfluoroethylene)

6、 6 6.1 . . 6.2 , . 6.3 (mL) (cm2) 20： 1 . . AB12 12 ab3b aKS D 0293:2009 6 6.4 . . . . , . . , pH pH . 6.5 . 6.6 . . , . . . 6.7 . 6.8 . , 0.5 . . 7 7.1 . 7.2 pH . 7.3 ( 3 mV , KS D ISO 17475 ). , . 7.4 , . 7.5 , . 0.1 M NaOH 544 mV vs SHE . , 0.1 A cm . KS D 0293:2009 7 7.6 , . . 7.7 ( ) . 7.8 , .

7、7.9 . 7.10 . , . 7.11 0 . , . 1 0 , . 2 . 1 . 1 . . 7.12 pH . 7.13 . 7.14 . 8 8.1 pH . pH . , (0.1 M ) . 8.2 . , . 8.3 . 8.4 . . KS D 0293:2009 8 8.5 . 9 9.1 . 9.2 , . LCDFAIJolssss/ (1) Jss . Co . , (1) . ( ) . . , 2 , . LCDJoReffss (2) , . 9.3 9.3.1 J(t)/Jss 0.63 . lag2eff6LD (3) . b2eff3.15 tLD (

8、4) 9.3.2 2 , Deff . 9.3.3 2 , J(t)/Jss . J(t) KS D 0293:2009 9 . FAIJ/(t)(t) (5) 2 . 2 . )exp()1(1(t)221ss nJJnn (6) 1 . 1 J(t)/Jss3.010 21.5710 34.010 21.0910 25.010 23.4010 26.010 27.1410 27.010 21.2010 18.010 21.7510 19.010 22.3410 11.010 12.9310 11.210 14.0610 11.610 15.9110 12.010 17.2310 12.41

9、0 18.1310 12.810 18.7410 13.510 19.3710 14.510 19.7610 15.510 19.9110 17.010 19.9810 19.010 11.0 n 1 6 . 2 , . tlag tb , tlag . , . KS D 0293:2009 10 , . 9.3.4 Co Deff . 9.3.5 , 1 2 , 1 . 9.3.6 , Co 1 , 2 . X (Co 4.210 3mg/kg) (Co 2.010 2mg/kg) (Co 6.510 2mg/kg) (Co 8.710 2mg/kg) (Co 6.510 2mg/kg) (

10、： 1 mm , ： 2 mm ) 2 NaCl 10 . a) b) , , c) d) e) , . ( , ). f) g) , , , , pH ( J(t)/Jssa 0 10 210 1 100101102 1 KS D 0293:2009 11 ). h) i) , j) Co k) . (1) Co . , . KS D 0293:2009 12 A ( ) A.1 , . A.2 . , . , . . . , . A.3 . , . A.4 . , . A.5 . . A.6 (L) . ( , ) . A.7 , . A.8 . 1 1 , . , . 1 , , 2 , KS D 0293:2009 13 . 2 . , 1 . 3 . . A.9 . . 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ KS D 0293:2009 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Method of measurement of hydrogen pe