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Changes Found on Run-In and Scuffed Surfaces of Steel Chrome Plate, and Cast IronA study was made of run-in and scuffed steel, chrome-plate, and cast-iron surfaces. X-ray and electron diffraction techniques, micro-hardness determinations, and microscopy were used. Surface changes varied and were found to include three classes: chemical reaction, hardening, and crystallite-size alteration. The principal chemical reactions were oxidation and carburization.
Document ID
19930082175
Acquisition Source
Legacy CDMS
Document Type
Other - NACA Technical Note
Authors
Good, J. N. (National Advisory Committee for Aeronautics. Lewis Flight Propulsion Lab. Cleveland, OH, United States)
Godfrey, Douglas (National Advisory Committee for Aeronautics. Lewis Flight Propulsion Lab. Cleveland, OH, United States)
Date Acquired
August 16, 2013
Publication Date
October 1, 1947
Subject Category
Metals And Metallic Materials
Report/Patent Number
NACA-TN-1432
AD-A801570
Accession Number
93R11465
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
IRON, CAST - WEAR RESISTANCE
X-RAY INSPECTION - METALS
STEELS - SAE 4140
METALS - OXIDATION
METALS - CRYSTALLIZATION
BIBLIOGRAPHY - METALS
PROTECTIVE COATINGS, CHROME
STEELS - WEAR
PISTON RINGS - RUNNING-IN
METALS - HARDNESS

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