カソード分極したステンレス鋼での水素分析 Analysis of Hydrogen in
Contents
1.2. 0 005g 1g 0
3. 3 3 1 1 18 40mass ppm
4. 0 65C s 1000 2 Hz 2
5. eic ea ml 39 2009
6. Q 1 3 3 9 1 Ni SUS8316
7. Om 183 40mass ppm 2000 1000C 1000 ass ppm 1000 2000
8. 18 40mass ppm 2 3 HH 340 80
9. 3 9 20 39 2009 Qc 1 2005 p 249 2 3 38 2003 212 4
10. Ni Ni 2 10 8 107 r SUS301 3 SUS304 0 1 Hydrogen evolutionrate atom s g 18 10 SUS316 10 7 4 IN 10SE 18F a 10 SUS321 1017 1016 4 e 3 200 400 600 800 Heating temperature C 3 Ni B Cr
11. i SUS301 9 GV GD G 2 We 4 302 304 316 321 1000C 8 6ks 1 4 es pp specimen
12. b 8300 300 a Cr B B 200 200 8 8 8 100 8 8 0M a 5 8 Q TDS 8 4 0 10 20 30 40 0 20 Cr content in specimens mass en Cr a 3 2 1000 1 1000C Ni Es Ni content in specmens mass 2 MEM TDS 0 1000 C
13. 1 I 39 2009 5 30 1 b NN1 Ni
14. 2 2 AssOs 5g m3 0 5km 25 0C 100A m2 om3HzsSOs 1 2 3 GD Q3 G QD Melting Extraction Method MEM Thermal Desorption Spectroscopy TDS MGA 621W
15. Ni 2 b Ni 39 2009 Ni Ni 300 200 100 200 Hydrogen concentration mass ppm 1 300 100 MEM before polarization cathodic polarized D TDS QR eo ovo SC Rn mn pm Oy YF 8 8 60 80 100 0
16. 40 1976 821 M Usui and 8 Asano Scripta Metall Mater 31 1994 445 1995 85 49 1985 327 16 17 18 19 20 21 51 1987 24 57 1993 742 33 1994 1407 22 55 1991 1283 23 H Hagi Mater Trans JIM 33 1992 472 21 3 31
17. 9 3 6ks 1 9 Ni SUS316 Ni CEN Cr 2 a J 100 Fe 100 Ni 18 Cr Cr Ne a i i 18 Cr Cr
18. 39 2009 W Analysis of Hydrogen in Cathodncally Polarnzed Stannless Steels Hideki HAGI Hiroyuki KURAMOTO Yuuki KURATA and Toshihiro YANAGAWA As a fundamental study to prevent an accident by the hydrogen embrittlement of stainless steels we have analyzed hydrogen in the cathodically polarized specimens of SUS301 302 304 316 321 347 430 stainless steels high purity ron and pure nickel by using the melting extraction method and the thermal desorption spectroscopy The value of hydrogen concentration measured by the melting extraction method was larger than that measured by the thermal desorption spectroscopy And the most of hydrogen dissolved in these speclmens were dscharged around room temperature These results indicate that it is necessary to always consider enough characteristics of the methods such as an experimental procedure Hydrogen atoms in the austentic stainless steels were suggested to interact with Ni atoms of an alloy element 1
19. 1 1000 NINE 10 40mass ppm NPV 2 Ni Ni Ni
20. 2008 p 128 46 2004 No 12 7 69 2005 1039 2008 p 219 38 2008 99 31 2001 173 5 6 8 9 61 1997 274 10 11 12 13 14 15 53 2002 54 49 2006 121 48 1997 337 48 1997 826 37 2008 109 10
21. 1 Cr lt Hydrogen evolutionrate at 1000 Ni Ni SU8430 3 4 80C 840 G9 1000 200 Heating temperature C 400 600 800 ss T 1 to T 1 W jma ms T 1 Temperature of the evolution peak C eo o Rn n pm
22. EY Lf 8 8g 8 8 1 1 austenitic stainless steel 4 EMR 2 Ni i G5G G9 GD Ni 2 4 SUS301 302 304 316 321 847 430 9
23. 1 347 430 E 1H E SU8301 302 304 316 321 347 430 9 X 1 0 1mm E Eg k
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