Weibull slope value

[PaulLag]

Hi There

Hope to write in the right forum

I am here dealing with a special topic.
I need to realize a corrosion test of an heat exchanger, and the duration is determined by weibull distribution.

My question is: is there any recommended value for Weibull slope ?
I assume it is higher than one, since corrosion is similar to wear out.
But which value to take ?
There are values between 2 and 8.

Can anyone suggest me which value to take ?
2? 4 ? 8?

I have tried in web but there are no specific suggested value

Thanks !

 

[IRstuff]

Perhaps the fact that you cannot find a single value is because there might not be a single value and the value is highly dependent on that exactly is being tested and how:

https://pdfs.semanticscholar.org/dfa4/58862e2800df0e760b5f1b1ba46c9054bd50.pdf

https://books.google.com/books?id=U...G#v=onepage&q=weibull slope corrosion&f=false

https://books.google.com/books?id=Q...J#v=onepage&q=weibull slope corrosion&f=false

https://books.google.com/books?id=U...K#v=onepage&q=weibull slope corrosion&f=false

http://www.dtic.mil/dtic/tr/fulltext/u2/p014067.pdf

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529 Entire Forum list

http://www.eng-tips.com/forumlist.cfm

 

[PaulLag]

Hello Mr. IRstuff

first of all I'd like to thank you for you kind answer.

Question:
what is being tested:
Round tube plain fin heat exchanger with brazing

how:
special corrosion test including NaCl, CuCl2, H2SO3

I understand it is quite complicated, but I have no clue of what Slope to consider.

 

[IRstuff]

As a general rule, one of the purposes of using Weibull techniques is to find out what the slope is. Particularly if the test involves testing to some end failure criteria.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529 Entire Forum list

http://www.eng-tips.com/forumlist.cfm