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September 2000

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Subject:
From:
Werner Engelmaier <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 29 Sep 2000 21:39:39 EDT
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Hi Günter,
Good to hear from you again. Yes, indeed, we did some work and the industry 
recommendation is to precondition ageing SJs prior to accelerated reliability 
testing--fine-grained SJs give fatigue lives about 2- to 3- times longer than 
coarse grained ones; this is however irrelevant for product, since in a years 
time the fine-grained structure coarses significantly,
Werner Engelmaier 

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