NICKEL ON BRASS AND POROSITY
We are looking for a test that will allow us to determine the porosity of the nickel layer on the brass substrate. Can you give us some direction?
Q. Our company plates nickel on brass. We are looking for a test that will allow us to determine the porosity of the nickel layer on the brass substrate. Can you give us some direction? L.J.
A. Yes, there’s a standardized test procedure for determining the porosity of plated layers over copper and copper alloys. The test involves suspending specimens to be tested over powdered sulfur at controlled humidity and temperature. The formation of black or brown spots is an indication of porosity. The details of this test procedure can be found in ASTM B 809-95(2008) from ASTM International.
Related Content
-
In-House Blackening of Ferrous and Non-Ferrous Metals
Process satisfies customers’ shipping requirements while meeting stricter water regulations in times of drought.
-
Zinc Electroplating
Choosing the best process for your operation.
-
Advantages to Pumped Eductor Agitation
Not all agitation methods are created equally. Pumped agitation with eductor nozzles can improve process tanks and quickly show a reduction in operating costs while keeping staff safe, following environmental legislation and preventing pollution.
