Understanding Test Ring Specimens: Here's help on knowing what test ring specimens are intended to do and how to use them

摘要

If you're involved with magnetic particle testing, then you're familiar with the term "Ketos ring," but do you know where the word Ketos comes from? Ketos is actually Crucible Steel's registered trade name for the industry-standard, oil-hardening tool steel (AISI-O1). However, the term Ketos ring has been used in our industry so long that it has become synonymous with the test ring specimen that we currently use as an overall system performance indicator in the magnetic particle inspection (MPI) process - Fig. 1.