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Abstract

Fatigue resistance can be improved by surface treatments. High power lasers can produce micro-structural changes in the surface to harden it or to improve resistance to corrosion or wear. This project investigates the effect of laser surface remelting on the high cycle fatigue properties of stainless steel AISI 316L. Results with a continuous laser beam were comparable to those achieved by electrolytic polishing, while treatment with a pulsed laser beam led to further improvement. Many of the cracks which caused the final failure seemed to nucleate at small inclusions appearing at the surface after remelting.

Additional information

Authors: STAMM H, JRC Ispra (IT);BOERMAN D, JRC Ispra (IT);DOS SANTOS MARQUES F, JRC Ispra (IT);GEIGER F, JRC Ispra (IT)
Bibliographic Reference: Paper presented: VACRO Days; Trattamenti Superficiali con Laser : Risultati della Ricerca Europea, ENEA, Vicenza/Bologna (IT), June 27-29, 1994
Availability: Available from (1) as Paper EN 38429 ORA
Record Number: 199410913 / Last updated on: 1994-11-28
Category: PUBLICATION
Original language: en
Available languages: en
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