Annex V: Cooperative Program on Environmentally Friendly
Corrosion Protection Technologies for Magnesium Alloys
Used in Transportation (auto, trucks) Industry – Tentative
Work Plan (subject to revision)
Annex
Chairman
Dr. Wenyue Zheng
Materials Technology Lab- CANMET
568 Booth St.
Ottawa, Ontario, Canada K1A0G1
Email: wenyue@nrcan.gc.ca
Objective
The objective of this Annex is to conduct cooperative
research into mechanistic understanding of Mg coating technologies
and on joint development of standard method for predictive
testing of Mg alloys in automotive applications.
Task
I. Technical Information Exchange
- Exchange of reports, studies, and test samples as agreed
upon in advance by the participating members on a semi-annual
basis;
- Joint technical workshops and meetings;
- Reciprocal invitations to workshops and conferences;
- Reciprocal visits to research facilities.
Task
II. Characterization of protective coatings for better
understanding of protection mechanisms
- Chemical characterization of the coating materials
applied on Mg surfaces;
- Local interface mechanical properties;
- Corrosion protection properties;
- Post-mortem analysis of failed samples in order to
probe into the failure mechanisms of various coatings.
Task
III. Development of standard test methods for predicting
the long-term performance of Mg alloys
- Establish database of various relevant test methods
currently used for evaluating Mg alloys;
- Design and develop the ranges of “key test parameters” such
as the levels of salts to use in salt-spray or immersion
condition, the level of humidity in case of fog test,
the temperature range and duration for each test cycle,
the composition and quantity of additional solid contaminants
to add to the test system;
- Conduct international Round Robin laboratory testing
and evaluations using the variables defined in (b);
- Conduct field testing, which duplicates of the test
materials used in the Round Robin program;
- Examine correlation of test results for field tests
and cross-correlation of lab-field test data.
For further information contact Wenyue Zheng at wenyue@nrcan.gc.ca.
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