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Near surface chemistry and corrosion behavior of excimer laser surface-melted AISI type 304 stainless steel

Conference ·
OSTI ID:6843375
; ;
The effects of excimer laser surface melting on the near-surface chemistry, and corrosion behavior of AISI 304 stainless steel have been examined as a function of total energy deposited on the specimen. The surface chemistry resulting from the laser treatments has been examined using Auger electron spectroscopy. Electrochemical methods were used to monitor the corrosion behavior of the specimens in deaerated 0.1 M NaCl. Electron microscopy was used to characterize the extent of local corrosion of the specimens. Laser treatment was observed to increase the chromium concentration of the surface oxide and to reduce the number of pits. Two types of pits were observed on untreated material, but only one type of pit occurred after laser treatment. 7 refs., 5 figs.
Research Organization:
Pacific Northwest Lab., Richland, WA (USA); Los Alamos National Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36; AC06-76RL01830
OSTI ID:
6843375
Report Number(s):
LA-UR-88-1960; CONF-8809107-1; ON: DE88014440
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
360106* -- Metals & Alloys-- Radiation Effects
ALKALI METAL COMPOUNDS
ALLOYS
AUGER ELECTRON SPECTROSCOPY
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION
CORROSION RESISTANT ALLOYS
DATA
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ELEMENTS
EXCIMER LASERS
EXPERIMENTAL DATA
GAS LASERS
HALIDES
HALOGEN COMPOUNDS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INFORMATION
IONIZATION
IRON ALLOYS
IRON BASE ALLOYS
LASERS
MATERIALS
METALS
NICKEL ALLOYS
NUMERICAL DATA
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RADIATIONS
SODIUM CHLORIDES
SODIUM COMPOUNDS
SPECTROSCOPY
STAINLESS STEEL-304
STAINLESS STEELS
STEELS
SURFACE IONIZATION
TRANSITION ELEMENTS
ULTRAVIOLET RADIATION