The authors are to be commended for some very interesting results obtained through the use of Auger electron microscopy to study the grain boundary compositions of Type 304 stainless steel after various annealing and sensitizing heat treatments. These observations were correlated with corrosion rates obtained from weight loss measurements on the same specimens after exposure for (1) 14 hours in a boiling 5N HNO3 solution containing 4 grams Cr+6 per liter added as K2Cr2O7, and (2) 60 hours in a modified Strauss test solution with the specimen imbedded in copper chips. Unfortunately, in all instances except Table 1 these tests were incorrectly referred to as Huey tests and Strauss tests. This makes the discussion very misleading when related to other literature references since the characteristics of the two sets of tests are entirely different.
The true Huey test (nitric acid test) consists...
