Which of the following is a desired effect of using Alodine on aluminum alloy?

• A. Improved corrosion resistance
• B. Increased electrical conductivity
• C. Reduced mechanical strength
• D. Enhanced thermal expansion

Answer: (A)

Verified step by step guidance

1. Understand that Alodine is a chemical treatment applied to aluminum alloys primarily to improve their surface properties.
2. Recall that one of the main purposes of Alodine treatment is to create a protective conversion coating on the aluminum surface.
3. Recognize that this conversion coating helps to prevent or slow down the corrosion process by acting as a barrier against environmental factors.
4. Note that Alodine treatment does not aim to increase electrical conductivity, reduce mechanical strength, or enhance thermal expansion; these are not typical desired effects.
5. Conclude that the desired effect of using Alodine on aluminum alloy is improved corrosion resistance.