The corrosion rate was calculated by weight loss method. What is the step of removing the corrosion product on the surface after salt spray corrosion ? Rinse with water first, and then gently hang off with a brush ? Look at the literature a lot with HCl : H2O = 1 : 1 to remove corrosion products, then the literature of this method, it is directly put the sample into it ? How long is the time generally ? How to do ah, the first contact in this regard, please tell the big guys.
Dear Dr. 圭圭 Li ,
I suggest you to have a look at the following, interesting document:
Corrosion of Copper Alloys in Consumer Electronics Environments
Anand V. Samant And Fritz C. Grensing
NACE INTERNATIONAL: VOL. 54, NO. 12
Available at: https://materion.com/-/media/files/alloy/article-reprints/materials-performance-dec15_pp-64-67.pdf
where Standard ASTM Methods were used and cited in Bibliography.
My best regards, Pierluigi Traverso.
Use 1:1:1 ammonia hydroxide and hydrogen peroxide - immersion until clean can also use nitric acid but nitro-trioxide liberated use high vent chem hood.
It seems like you're looking for guidance on removing corrosion products from a sample after conducting a salt spray corrosion test. The weight loss method you mentioned involves determining the weight of the sample before and after corrosion and then calculating the corrosion rate based on the weight loss. Removing the corrosion product properly is an essential step in this process.
Here's a general guideline to follow, but please remember that different methods might be appropriate depending on the exact materials and test conditions.
Remember, you must consult specific literature on your material and test conditions to fine-tune these steps. Also, always follow safety protocols, such as using gloves and goggles, when handling corrosive chemicals like HCl.
Suppose this is your first time dealing with such a procedure. In that case, it might be advisable to seek assistance from a more experienced colleague or supervisor in your laboratory to ensure that you follow the correct protocol for your specific application.
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