HS2440 Week 4 Asyn_Single metal corrosion (copy) Flashcards
1
Q
How corrosion occurs with dissimilar metals in an electrolyte
A
2
Q
How does corrosion occur in single metals and alloys
A
- impurities and defects cause irregularities in the slip planes
- can be interstitial or substitutional
3
Q
Describe energy difference relevant to metal alloys
A
4
Q
Two types of corrosion: G_____ and L_____. Both caused by energy difference and impurities
A
5
Q
Anode and Cathode reactions occurring on a single metal with energy differences
A
Cathode will be a more stable impurity , needs to be able to conduct/ receive electrons
6
Q
Cathode reactions in acid and alkali water
A
7
Q
Anode and Cathode reactions in the atmosphere
A
8
Q
How corrosion products form at reaction sites eg. rust (ferrous hydroxide)
A
