SAE AIR 6130A-2017 Cadmium Plate Cyclic Corrosion Test.pdf

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1、 _ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising ther

2、efrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2017 SAE International All rights reserved. No part of this

3、publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-49

4、70 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/AIR6130A AEROSPACE INFORMATION REPORT AIR6130 REV. A Issued 2011-05 Revised 2017-05 Supersedin

5、g AIR6130 Cadmium Plate Cyclic Corrosion Test RATIONALE Revision A: is made to provide a standard size for the bar called in Para 3 and to clarify the Test results. In Para 3. Change the test specimen size from 25.40 x 50.80 x 1.02 mm (1 by 2 by 0.040 inch) to 25.4 x 50.8 x 1.22 mm (1 by 2 by 0.048

6、inch) (see ASTM F1111) In para 6. “Total weight loss more than 0.0077g” is removed and the criteria will be 0.3mg/cm2. 1. SCOPE 14-day material test to determine the cyclic effects of runway deicing compounds on cadmium plated parts. 2. APPLICABLE DOCUMENTS The following publications form a part of

7、this document to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the purchase order. In the event of conflict between the text of this document and references cited herein, the text

8、of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and

9、Canada) or +1 724-776-4970 (outside USA), www.sae.org. AMS1431 Compound, Solid Runway and Taxiway Deicing/Anti-Icing AMS1435 Fluid, Generic, Deicing/Anti-Icing Runways and Taxiways SAE INTERNATIONAL AIR6130A Page 2 of 4 3. TEST SPECIMEN PREPARATION Substrate: 4130 steel Size: 1 x 2 x 0.048 inch (25.

10、40 x 50.80 x 1.22 mm) (Specification ASTM F1111 Para 7) Finish: Cadmium plating: 0.0005” to 0.0008“ per side, do not exceed 0.0008 inch maximum plating (Method: Specification ASTM F1111 Para 7)( Quality: Specification SAE AMS-QQ-P-416 governs). There shall be no supplementary chromate treatment. a.

11、Three cadmium plated test specimens shall be used for each fluid to be tested. b. Sample of AMS1435 Runway Deicing Fluid shall be tested as received from the supplier. c. Sample of AMS1431 Runway Deicing Solid Compound shall be tested in a diluted form - diluted with ASTM D1193, Type IV, water to 15

12、% by weight solids. d. Procure soft flexible brushes for test (paintbrush type, 1.5 inches (3.8 cm) wide, with synthetic bristles approximately 1.5 inches (3.8 cm) long). 4. ENVIRONMENTAL EXPOSURE PREPARATION Preset humidity chamber to 90 F 5 F (32 C 3 C ) and 30 % 5% humidity. Affix plastic ties or

13、 other inert material as hangers (hangers shall be made from an inert material that will not react with the sample; plastic, plastic coated metals, monofilament fishing line, or stainless steels are acceptable) in the chamber to hold specimens during the environmental exposure period. Take the total

14、 area of the specimen as 27.67 cm2. The ratio of the area of immersed metal to volume of solution shall be 25 mL of solution per 625 mm2of specimen surface area. The volume corresponds to 110 mL. 5. TEST PROCEDURE a. Measure and record pH of solution to be tested (record to one decimal place, exampl

15、e: pH = 7.3). This value is to be included in the final test report. b. Solvent clean cadmium plated specimens with acetone; wipe gently with an acetone-soaked wiper. Without allowing the acetone to evaporate, gently remove excess acetone with a dry wiper. Allow samples to dry for 10 minutes in a de

16、siccator. Do not accelerate drying of samples with oven drying. NOTE: Care should be taken not to touch the cleaned specimen with bare hands; use stainless steel tweezers, clean gloves, or equivalent tool. c. Weigh and record initial specimen weights in grams. Record all weights throughout the test

17、to the nearest 0.0001 g. Return specimens to desiccator until Day 3. Test Schedule by Weekday MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY Friday Start - DAY 0 DAY 3 DAY 4 DAY 5 DAY 6 DAY 7 DAY 10 DAY 11 DAY 12 DAY 13 DAY 14 SAE INTERNATIONAL AIR6130A Page 3 of 4 d. FRIDAY START - Fill glass containers

18、with solution to be tested, one container for each coupon. Refer to 3b or 3c for solution being used (consider filling one extra container to have extra conditioned fluid available). Containers shall be large enough so the solution completely covers the specimens. Cover the container with loose fitt

19、ing cover and place filled container into the humidity chamber to environmentally condition the solution for a minimum of 24 hours 1 hour before the start of the test, up to 72 hours 1 hour. NOTE: Containers should be covered with loose fitting covers at all times, with or without coupons in solutio

20、n. If evaporation occurs such that coupons cannot be completely covered in solution, container should be topped off with solution conditioned per step 5.d. e. DAY 3 - Remove the solution container from the humidity chamber and the specimens from the desiccator. Place specimens in container oriented

21、such that the specimens are not resting flush against the bottom or side of the container. Place the container with cover back into the humidity chamber for 24 hours 1 hour. f. DAY 4 - After the 24 hour immersion in the solution, remove the specimens, but do not rinse them. Place them into the humid

22、ity chamber by hanging for 22.5 hours 0.5 hour. Hangers shall be made from an inert material that will not react with the sample (such as plastic, plastic coated metals, and stainless steels are acceptable). g. DAY 5/DAY 10/DAY 12 - Remove specimens from the humidity chamber. Rinse the specimens wit

23、h deionized water. Lightly brush (12 strokes per side) the specimen surface with the soft flexible brush while rinsing to remove loose corrosion products. Immerse samples into acetone for 10 seconds while agitating specimen. Allow samples to dry for 10 minutes in a desiccator. Weigh and record the s

24、pecimen weights. Do not accelerate drying of samples with oven drying. NOTE: If multiple solutions are being tested, use different brushes for each solution to avoid cross contamination. Immediately after weighing the specimens, return them to their test solution container to soak for 90 minutes 5 m

25、inutes in the humidity chamber. Specimens shall be oriented such that they are not resting flush against the bottom or side of the container. After 90 minutes, remove the specimens but do not rinse them. Place them in the humidity chamber by hanging for 22.5 hours 0.5 hour, maintaining the specimen

26、in the initial orientation throughout the cycle. h. DAY 6/DAY 11/DAY 13 - Return the specimen to the test solution container to soak for 90 minutes 5 minutes in the humidity chamber. Specimens shall be oriented such that it is not resting flush against the bottom or side of the container. After 90 m

27、inutes, remove the specimen but do not rinse it. Replace it in the humidity chamber by hanging for 22.5 hours 0.5 hour, maintaining the specimen in the initial orientation throughout the cycle. i. DAY 7 - Remove specimens from the humidity chamber. Rinse the specimens with deionized water. Lightly b

28、rush (12 strokes per side) the specimen surface with a soft flexible brush while rinsing to remove loose corrosion products. Immerse samples into acetone for 10 seconds while agitating specimen. Allow samples to dry for 10 minutes in a desiccator. Weigh and record the specimen weights. Do not accele

29、rate drying of samples with oven drying. NOTE: If multiple solutions are being tested, use different brushes for each solution to avoid cross contamination. Immediately after weighing the specimens, return them to their test solution container in the humidity chamber. Specimens shall be oriented suc

30、h that they are not resting flush against the bottom or side of the container. Specimens shall be left in the test solution container in the humidity chamber from DAY 7 to DAY 10. j. DAY 14 - Remove specimens from the humidity chamber. Rinse the specimens with deionized water. Lightly brush (12 stro

31、kes per side) the specimen surface with a soft flexible brush while rinsing to remove loose corrosion products. Immerse samples into acetone for 10 seconds while agitating specimen. Allow samples to dry for 10 minutes in a desiccator. Weigh and record the specimen weights. Do not accelerate drying o

32、f samples with oven drying. NOTE: If multiple solutions are being tested, use different brushes for each solution to avoid cross contamination. SAE INTERNATIONAL AIR6130A Page 4 of 4 k. Measure and record final pH of solution (record to one decimal place, example: pH = 7.3). This value is to be incl

33、uded in the final test report. l. Report the initial weight of the specimen, the weight after each periodic weighing, and the final weight. Calculate and report the value of the cumulative weight lost from each specimen after each periodic weighing procedure. 6. TEST RESULTS The test report should i

34、nclude the type of fluid used (refer to 3b or 3c), the number and type of cadmium plated coupons used, the weight loss for each coupon, and the average weight loss for all 3 coupons used for each fluid tested. Also include the pH values recorded in steps 5.a and 5.k. A runway deicing fluid or solid

35、compound tested in accordance with this document that exhibits a weight loss of more than 0.3 mg/cm2may cause undesirable corrosion effects to airplane equipment and/or airport equipment. Calculate the mg/cm2value by dividing the weight loss by the total surface area (surface area will be different

36、for any bar that is not ASTM F1111 standard). 7. NOTES 7.1 Revision Indicator A change bar (I) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY SAE COMMITTEE G-12, RUNWAY DEICING FLUIDS