b. (at left) Portion of cross-section just back of fracture of side terminal. c. (at right) Portion of opposite end of b, i.e., where terminal is attached to plug casing (cool end).
Relative deterioration of central and side electrode. Center corresponds quite closely in each case with lower corner of photomicrographs. X 75
ex Henry S. Rawdon and A I Krynitzky,
Deterioration of Nickel Spark-plug Terminals in Service, Transactions of the American Institute of Mining and Metallurgical Engineers 64 (1921) : 129-158
14 November 2012
tags: deterioration; nickel; ruination; A. I. Krynitzky; Henry S. Rawdon