Dear Engineers and Doctors,
I would like to know that investigating 800h thermo-oxidative aging at 80 degree Celsius can be considered as an incipient thermal damage phenomenon while there is no visible defect?
Typically, the terms of the incipient heat damage be used for moderate heat exposure (150 to 1200 degree Celsius) in short period of time (10s to 500min) without any visible damage by applying UT.
Dear Moussa,
Many thanks for your reply.
Yes, the material in question is PMC.
Definitely material properties have been changed during pronounced thermo-oxidative aging which performed mechanical,thermo-mechanical, morphological, and chemical tests confirmed alters.
Since conventional NDI methods, UT for example, were not able to detect any detect, can we entitle it as the incipient thermal damage by concerning typical definition for the incipient heat damage?
Regards,
Amin
Dear Litwa,
I greatly appreciate your practical measure. I already read that excellent review in accelerated aging method. Truly, it is a great guideline to investigate phenomenological aging.
By the way, it would be my pleasure to be more in contact to share interesting finding about thermo-oxidative aging.
Regards,
Amin