high temperature curing of dry film lubricant on Aluminum tube?

[optimussteel]

Does anyone know applying high temperature curing(150 C for 10 minutes) for a dry film lubricant on aluminum 6061 T6 (tube,sheet) cause any critical change in the microstructure that may affect the mechanical properties of the part?

Thanks in advance
Best regards

 

[TVP]

There should be no problem, as the minimum aging temperature for 6061 T6 is 320 +/- 10 F (160 +/- 5 C).

 

[optimussteel]

Hello TVP ,thank you for your comments

Yeah you are right , it is approximately the temperature for obtaining T6 from T4 , but i dont know what is the effect after obtaining T6 since it is kind of comlicated kinetics if there is some kind of coarsening of precipitates and lowering the strength a little bit?

let me add some other combinations to my question
for 60 min for 150 C
or 30 min for 180 C?

What would be the effects of these?

 

[CoryPad]

The proposed exposures to 150 [°]C won't affect your part if you aged them at or above 150 [°]C.

Any exposure to 180 [°]C will reduce the strength.

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[coatingengineer]

Hi.

Cory's right. Resistance to stress fracture, expansion of the micro structure, for 6061-T6, is unchanged when temperatures are held below 375 F.

If the properties you seek are superficial, have you considered wear resistant coatings?

For more information, see:
<a href="

http://www.industrialcoatingsworld.com/Wear-Resistant-Coatings/index.html">Wear

Resistant Coatings</a>

Good luck!

William Gunnar

http://www.IndustrialCoatingsWorld.com