CORROSION OF SURFACE MODIFIED METALS

Authors
  1. Clarke, S.J.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);Research and Productivity Council, Fredericton NB (CAN)
Abstract
Experimental techniques used for the evaluation of materials that have been surface processed by laser beams are evaluated. Materials that have been laser-glazed, laser alloyed and laser consolidated (as in the case of sprayed thermal barrier coatings) are included. High temperature oxidation, hot corrosion and aqueous corrosion phenomena are discussed. Isothermal and experiments involving temperature cycling are included in the survey. Techniques used to estimate and measure the increase of surface area (surface toughening) due to laser beam processing are dealth with. Electrochemical techniques, including potentiodynamic and galvanostatic D.C. polarisation and A.C. impedance, and their applicability in the characterization of laser surface treated materials are discussed.
Keywords
Surface modification
Report Number
DREA-CR-91-411;RPC-EM-91-25 — Contractor Report
Date of publication
01 Apr 1991
Number of Pages
39
DSTKIM No
93-04937
CANDIS No
128857
Format(s):
Hardcopy;Originator's fiche received by DSIS

Permanent link

Document 1 of 1

Date modified: