Usage limitations of AA7075.
|Type of limitation||References|
|Difficulty in joining by conventional fusion-welding techniques|||
|Involves complicated process for welding and it is highly reactive to caustic acids, water, and oxygen.|||
|Poor tribological properties||[4,14,20,25,38–42]|
|Fatigue cracks due to cyclic loading is one of the most important issues in these alloys||[43–45]|
|Poor mechanical and the tribological properties at high temperatures|||
|Reduced strength and hardness due to residual coarse and insoluble secondary phases|||
|Lower compression strength and hardness|||
|Formation of built-up-edge to lower machinability and reduce tool life|||
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