Laser-assisted surface modification of 4340 steel with iron-aluminum alloys

G. Muralidharan, P. G. Engleman, C. A. Blue, V. K. Sikka, A. K. Singh, A. Khangar, N. B. Dahotre

Research output: Contribution to journalConference articlepeer-review

Abstract

High power Nd-YAG laser was used to fuse coatings containing a mixture of FeAl and Al, with 4340 steel. It was observed that good quality coatings could be obtained using this process. Detailed microstructural studies show that Fe aluminides and/or a solid solution of Al in Fe can form within the coating, depending on the processing conditions. Wear measurements show that the best wear properties are obtained in the presence of an aluminide in the coating and that the wear properties significantly degrade when the coating consists primarily of a solid solution of Al in Fe.

Original languageEnglish
Pages (from-to)449-454
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume750
DOIs
StatePublished - 2002
EventSurface Engineering 2002 Sythesis, Characterization and Applications - Boston, MA, United States
Duration: Dec 2 2002Dec 5 2002

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