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Recent work at the National Bureau of Standards has revealed the effects of acid pretreatment of porcelain enamels upon their acid and abrasion resistance. Studies were made to compare the relative effects of hydrochloric, acetic, butyric, and citric acids on a numberof enamels. These studies indica
Erosion resistance of four types of cast iron of different microstructures and graphite morphologies (viz., grey cast iron, compacted graphite iron, spheroidal graphite iron and austempered ductile iron) was evaluated in three different erosive media. Results indicate that austempered ductile iron h
A general discussion is given of a method used to determine lubrication requirements for diesel engines. It shows how laboratory experience is gained in single cylinder and multicylinder engines. Field experience is obtained from both proving ground and user tests before lubrication recommendations