Handbook of Corrosion Engineering Episode 2 Part 6 docx

... details of the deicing mechanism 16 6 Chapter Two 0 76 5 16 2_Ch02_Roberge 9 /1/ 99 4:02 Page 16 6 resistance. The potential of the reinforcing steel can be measured with a reference cell as a function of ... points Resistivity, ⍀иcm Ͻ 700 10 700 10 00 8 10 00 12 00 5 12 00 15 00 2 15 00–2000 1 Ͼ 2000 0 pH 0–2 5 2–4 3 4 6. 5 0 6. 5–7.5 0 7.5–8.5 0 Ͼ 8.5 3 Redox potential...

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... points Resistivity, ⍀иcm Ͻ 700 10 700 10 00 8 10 00 12 00 5 12 00 15 00 2 15 00–2000 1 Ͼ 2000 0 pH 0–2 5 2–4 3 4 6. 5 0 6. 5–7.5 0 7.5–8.5 0 Ͼ 8.5 3 Redox potential, mV Ͼ 10 0 0 50 10 0 3.5 0–50 4 Ͻ 05 Sulfides Positive ... Classification Summation of R1 to R12 ratings Soil classification Ն0 Virtually noncorrosive 1 to Ϫ4 Slightly corrosive Ϫ5 to 10 Corrosive 10 Highly corrosive...

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... Ni -16 Cr -16 Mo (C276) 16 . Ni -20 Cr -16 Mo-4 W (686) 17 . Ni -22 Cr -16 Mo (C 22/ 59) 18 . Ni -23 Cr -16 Mo -1 Cu (C20000) 19 . Ni-30 Mo (B -2) 20 . Nickel (20 0) 21 . Nickel cast iron (15 -35Ni) 22 . Nickel-chromium-iron ... g /15 00 h g /10 years g /15 00 h g /10 years LM1M† 0.87 0.43 0.06 0.09 LM4M 0.34 0 .18 0. 02 0.09 LM5M 0 .19 0.06 0 0 .10 LM6M 0.05 0. 12 0 0.04 LM14WP 0...

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... 0. 01 1 at% 1 10 nm Yes 10 ␮m 2 mm HFS H, D — 0. 01 at% 50 nm No 2 mm ϫ 10 mm RBS Li–U — 1 10 at% (Z Ͻ 20 ) 2 mm Yes 0. 01 1 at% (20 Ͻ Z Ͻ 70) 0.0 01 0. 01 at% (Z Ͼ 70) SEM/EDS B–U — 0 .1 1 at% 1 5 ... (Ͼ 15 Zn) 9. Cast iron, gray/ductile 10 . Copper/bronze/Low brass 11 . Copper-nickel 12 . Duplex (25 -6-3) 13 . Gold/platinum 14 . Lead 15 . Ni -16 Cr -16 Mo (C276) 16 ....

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... D D 20 24 T3 L A A A LT B D B ST D D D 20 24 T4 L A A A LT B D B ST D D D 20 24 T6 L A A LT B A ST B D 20 24 T8 L A A A A LT A A A A ST B A B C 20 48 T851 L A LT A ST B 21 24 T851 L A LT A ST B 22 19 ... A LT A ST B 22 19 T351X L A A LT B B ST D D 22 19 T37 L A A LT B B ST D D 22 19 T6 L A A A A LT A A A A ST A A A A 22 19 T85XX L A A A LT A A A ST A A A 22 19 T87 L A A A LT A A A...

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... D 20 24 T8 L A A A A LT A A A A ST B A B C 20 48 T851 L A LT A ST B 21 24 T851 L A LT A ST B 22 19 T351X L A A LT B B ST D D 22 19 T37 L A A LT B B ST D D 22 19 T6 L A A A A LT A A A A ST A A A A 22 19 ... Forging 20 11 T3 L B LT D ST D 20 11 T4 L B LT D ST D 20 11 T8 L A LT A ST A 20 14 T6 L A A A B LT B D B B ST D D D D 20 24 T3 L A A A LT B D B ST D D D 20 24 T4 L A A A LT B D...

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... Given) ISO BS UNS DIN CuNi30MnlFe CN 107 C71500 CuNi30Fe 2. 08 82 Copper Minimum Rem. Rem. Rem. Rem. Maximum Nickel Minimum 29 .0 30 .0 29 .0 30 .0 Maximum 32 . 0 32 . 0 33 .0 32 . 0 Iron Minimum 0.4 0.4 0.4 ... TABLE 8. 13 Corrosion- Resistance Ratings * for Coppers (C11000, C 122 00), Brasses (C 220 00, C 230 00, C26000, 28 000), Leaded Brasses (C36000, C38500), and Tin Brasses (C...

Ngày tải lên: 05/08/2014, 09:20

... Given) ISO BS UNS DIN CuNi30MnlFe CN 107 C71500 CuNi30Fe 2. 08 82 Copper Minimum Rem. Rem. Rem. Rem. Maximum Nickel Minimum 29 .0 30 .0 29 .0 30 .0 Maximum 32 . 0 32 . 0 33 .0 32 . 0 Iron Minimum 0.4 0.4 0.4 ... acetylene. Table 8. 13 presents corrosion- resistance ratings for some coppers (C11000, C 122 00), brasses (C 220 00, C 230 00, C26000, 28 000), leaded brasses (C36000, C385...

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... Nil Bromine Vapor 20 0. 025 Chromium 25 % CrO 3 , 12% H 2 SO 4 92 0. 125 plating solution Chromium 17% CrO 3 , 2% Na 5 SiF 6 , 92 0. 125 plating solution trace H 2 SO 4 H 2 O 2 30 Room 0. 025 H 2 O 2 30 Boiling ... 5.0 317LM S31 725 2. 5 2. 5 G N06007 25 .0 25 .0 G-3 N06985 25 .0 25 .0 C -4 N0 645 5 37.5 37.5 625 N06 625 35.0 40 .0 C -27 6 N1 027 6 60/0 65/0...

Ngày tải lên: 05/08/2014, 09:20

... Nil Bromine Vapor 20 0. 025 Chromium 25 % CrO 3 , 12% H 2 SO 4 92 0. 125 plating solution Chromium 17% CrO 3 , 2% Na 5 SiF 6 , 92 0. 125 plating solution trace H 2 SO 4 H 2 O 2 30 Room 0. 025 H 2 O 2 30 Boiling ... Boiling 0.0 025 K 2 CO 3 1–10 Room 0. 025 K 2 CO 3 10 20 98 Embrittlement K 3 PO 4 10 Room 0. 025 MgCl 2 47 Boiling 0. 025 NaCl Saturated; pH...

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... 12 3.1 9 .6 2. 2 1.7 N 066 00 Inconel 60 0 3 .6 4.0 3.0 1.8 R 524 00 Ti, grade 7 6. 5 8.8 2. 0 2. 0 R608 02 Zircalloy -2 8.0 9.0 3.5 2. 2 N1 027 6 Hastelloy C -27 6 7.0 7.5 4.0 3.0 N1 066 5 Hastelloy B -2 9.7 11.0 ... 24 1 14 R69705 705 5 52 379 16 R697 06 7 06 510 345 20 Nuclear grades R60001 (annealed) Unalloyed 29 6 20 7 18 R608 02 (annealed) Zircalloy -2 3 86...

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... grades R697 02 7 02 379 20 7 16 R69704 704 413 24 1 14 R69705 705 5 52 379 16 R697 06 7 06 510 345 20 Nuclear grades R60001 (annealed) Unalloyed 29 6 20 7 18 R608 02 (annealed) Zircalloy -2 3 86 303 25 R60804 ... exchanger S3 160 0 3 16 1 1 1 1 R50400 Ti, grade 2 2.0 2. 25 2. 0 1.5 R53400 Ti, grade 12 3.1 9 .6 2. 2 1.7 N 066 00 Inconel 60 0 3 .6 4.0 3.0 1.8 R 524...

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... commonly 076 51 62_ Ch09_Roberge 9/1/99 6:11 Page 820 therefore usually clad with aluminum alloys containing about 1% zinc, such as 70 72 , or aluminum-zinc-magnesium alloys such as 70 08 and 70 11, which ... dry) and 1B (exterior, normally dry) and is particularly 076 51 62_ Ch09_Roberge 9/1/99 6:11 Page 821 Protective Coatings 79 7 TABLE 9.4 Description of the Main Advanced Te...

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... 9/1/99 6:15 Page 8 42 83 3 Corrosion Inhibitors 10.1 Introduction 83 3 10 .2 Classification of Inhibitors 83 4 10 .2. 1 Passivating (anodic) 83 6 10 .2. 2 Cathodic 83 7 10 .2. 3 Organic 83 7 10 .2. 4 Precipitation ... Solution Corrosion current, Corrosion rate, TCA, ppm R p , ⍀иcm 2 mAиcm 2 mmиy Ϫ1 Efficiency, % 0 14 1.55 18. 0 0 25 0 35 0. 62 7 .2 60 1000 143 0.1 52...

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... 0.15 A 921 17 21 17 0.8 0.7 2. 2–3.0 0 .20 0 .20 –0.50 0.10 0 .25 A 921 24 21 24 0 .20 0.30 3.8–4.9 0.30–0.9 1 .2 1.8 0.10 0 .25 0.15 A 922 18 22 18 0.9 1.0 3.5–4.5 0 .20 1 .2 1.8 0.10 1.7 2. 3 0 .25 A 922 19 22 19 0 .20 ... Ϫ4,6 42. 01 H 2 O 23 7,000 69.9 10.669 42. 284 Ϫ6.903 18.54 23 9,483 Al 0 28 . 325 20 .67 12. 38 0 24 .79 Ϫ1,040.43 Al(OH) 3 Ϫ1 ,136 ,5 42 0 Ϫ1 ,136 ,5 42 A...

Ngày tải lên: 05/08/2014, 09:20