From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Summary of I.A.E. research findings on material wear resistance for components like cylinders and piston rings.
Identifier | ExFiles\Box 132\4\ scan0070 | |
Date | 27th May 1937 | |
1124. I.A.E. Research (1931) 27-5-37 Besides that ① Hardness is unreliable criterion & resistance to wear of cast iron ② most evidence favours a piston ring hardness equal or greater than cylinder. ③ Cast iron with pearlitic or sorbitic base have highest resistance to wear ⑧ nickel does not necessarily increase resistance to wear ⑨ Hardened liners appear to wear well ⑩ Phosphorus increases resistance to wear. ⑪ Cylinder wear could almost be eliminated by use of nitrided liners ⑫ Lapped or honed finish reduces initial wear # General Motors General motors experiments showed that as combined carbon was increased from .2% to .75% wear decreased | ||