×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

cleaning magnesium
3

cleaning magnesium

cleaning magnesium

(OP)
what are the no-no's for cleaning this metal???
We imeresed ia piece in out cleaning a
tank and it turned black,,,HELP.....

RE: cleaning magnesium

If your piece turned black, you probably got a smut from oxidation.  In general, you should not acid pickle, but rather you should use alkaline cleaning.  ASM Handbook Volume 5: Surface Engineering gives good information acceptable practices.  It is available at:

http://www.asminternational.org

RE: cleaning magnesium

2
ASTM has a number of good references with respect to magnesium surface preparation & corrosion:

ASTM D 1732 STANDARD PRACTICE FOR PREPARATION OF MAGNESIUN ALLOY SURFACES FOR PAINTING

ASTM B 879 STANDARD PRACTICE FOR APPLYING NON-ELECTROLYTIC CONVERSION COATINGS ON MAGNESIUM AND MAGNESIUM ALLOYS

ASTM B 480 STANDARD GUIDE FOR PREPARATION OF MAGNESIUM AND MAGNESIUM ALLOYS FOR ELECTROPLATING

B 480 references the standard guide ASTM B 322, which is an excellent reference for all metals

ASTM B322 CLEANING METALS PRIOR TO ELECTROPLATING

ASTM standards can be obtained from ASTM at http://www.astm.org or from Global Engineering Documents at http://global.ihs.com .

There is a military spec, MIL-M-3171 MAGNESIUM ALLOY, PROCESSES FOR PRETREATMENT AND PREVENTION OF CORROSION ON, that has some information on this subject as well.  It has been officially superceded by SAE-AMS-M-3171, but you can still download the last version of this document, free of charge, using ASSIST-Quick Search at http://assist2.daps.dla.mil/quicksearch/

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources