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Title: Method for producing functionally graded nanocrystalline layer on metal surface

Abstract

An improved process for the creation or formation of nanocrystalline layers on substrates' surfaces is provided. The process involves "prescuffing" the surface of a substrate such as a metal by allowing friction to occur on the surface by a load-bearing entity making rubbing contact and moving along and on the substrate's surface. The "prescuffing" action is terminated when the coefficient of friction between the surface and the noise is rising significantly. Often, the significant rise in the coefficient of friction is signaled by a change in pitch of the scuffing action sound emanating from the buffeted surface. The "prescuffing" gives rise to a harder and smoother surface which withstands better any inadequate lubrication that may take place when the "prescuffed" surface is contacted by other surfaces.

Inventors:
 [1];  [2]
  1. Oswego, IL
  2. Berwyn, IL
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1014470
Patent Number(s):
7682650
Application Number:
U S Patent Application 10/841,731
Assignee:
Uchicago Argonne, LLC (Chicago, IL)
Patent Classifications (CPCs):
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10N - INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10M - LUBRICATING COMPOSITIONS
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Ajayi, Oyelayo O, and Hershberger, Jeffrey G. Method for producing functionally graded nanocrystalline layer on metal surface. United States: N. p., 2010. Web.
Ajayi, Oyelayo O, & Hershberger, Jeffrey G. Method for producing functionally graded nanocrystalline layer on metal surface. United States.
Ajayi, Oyelayo O, and Hershberger, Jeffrey G. Tue . "Method for producing functionally graded nanocrystalline layer on metal surface". United States. https://www.osti.gov/servlets/purl/1014470.
@article{osti_1014470,
title = {Method for producing functionally graded nanocrystalline layer on metal surface},
author = {Ajayi, Oyelayo O and Hershberger, Jeffrey G},
abstractNote = {An improved process for the creation or formation of nanocrystalline layers on substrates' surfaces is provided. The process involves "prescuffing" the surface of a substrate such as a metal by allowing friction to occur on the surface by a load-bearing entity making rubbing contact and moving along and on the substrate's surface. The "prescuffing" action is terminated when the coefficient of friction between the surface and the noise is rising significantly. Often, the significant rise in the coefficient of friction is signaled by a change in pitch of the scuffing action sound emanating from the buffeted surface. The "prescuffing" gives rise to a harder and smoother surface which withstands better any inadequate lubrication that may take place when the "prescuffed" surface is contacted by other surfaces.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {3}
}

Patent:

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