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

Conference · Sat Oct 01 04:00:00 EDT 1988

OSTI ID:6747232

Baer, D R; Frydrych, D J; Jervis, T R

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., 6 figs.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6747232
• Report Number(s): PNL-SA-15717; CONF-880901-5; ON: DE89001485
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
360106* -- Metals & Alloys-- Radiation Effects
ALKALI METAL COMPOUNDS
ALLOYS
CARBON DIOXIDE LASERS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COMPARATIVE EVALUATIONS
CORROSION
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
EXCIMER LASERS
GAS LASERS
HALIDES
HALOGEN COMPOUNDS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HEATING
IRON ALLOYS
IRON BASE ALLOYS
LASER-RADIATION HEATING
LASERS
MATERIALS
NICKEL ALLOYS
PITTING CORROSION
PLASMA HEATING
RADIATION EFFECTS
SODIUM CHLORIDES
SODIUM COMPOUNDS
STAINLESS STEEL-304
STAINLESS STEELS
STEELS
SURFACE TREATMENTS
SURFACES