Abstract

Fabrication of functionally graded materials (FGMs) by laser metal deposition (LMD) has the potential to offer solutions to key engineering problems over the traditional metalworking techniques. But the issues that need to be addressed while building FGMs are intermixing in the layers and cracking due to the residual stresses. This paper is to present the study of the effect of process parameters (laser power and travel speed) on the degree of dilution between the substrate (or, previous layer) and powder material for few metallurgical systems.

Department(s)

Materials Science and Engineering

Second Department

Mechanical and Aerospace Engineering

Sponsor(s)

Air Force Research Laboratory

Comments

Technical paper for general release. PAO Case Number: 88ABW-2009-3786; Clearance Date: 28 Aug 2009

This work was funded in whole or in part by Department of the Air Force Contract FA8650-04-C-5704.

Keywords and Phrases

LMD; FGMs; Intermixing; Cracking; Dilution

Report Number

AFRL-RX-WP-TP-2010-4150

Document Type

Technical Report

Document Version

Preprint

File Type

text

Language(s)

English

Publication Date

01 Mar 2010

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