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research-article

MECHANICAL PROPERTIES AND STRUCTURE OF LASER BEAM AND WIDE GAP BRAZED JOINTS PRODUCED USING MAR M247 ? AMDRY DF3 POWDERS

[+] Author and Article Information
Alexandre Gontcharov

Liburdi Turbine Services, Inc., 400 Hwy 6 North, Dundas, ON, Canada
agontcharov@liburdi.com

Yuan Tian

Liburdi Turbine Services, Inc., 400 Hwy 6 North, Dundas, ON, Canada
tianyuan19880212@gmail.com

Paul Lowden

Liburdi Turbine Services, Inc., 400 Hwy 6 North, Dundas, ON, Canada
plowden@liburdi.com

Mathieu Brochu

McGill University, Wong Building, 3610 University, Room 2140, Montreal, QC, Canada
mathieu.brochu@mcgill.ca

1Corresponding author.

ASME doi:10.1115/1.4041009 History: Received June 26, 2018; Revised July 10, 2018

Abstract

The microstructure and mechanical properties of materials produced by Wide Gap Brazing (WGB) and Laser Beam (LBW) cladding with different blends of Mar M247 and Amdry DF-3 brazing powders were studied. It was shown that LBW Mar M247 based materials comprised of 0.6 to 1 wt. % B were weldable. The weld properties were superior to WGB deposits with the same bulk chemical composition, due to the formation of a dendritic structure typical for welded joints, and the precipitation of cuboidal borides of Cr, Mo, and Win the ductile Ni-Cr based matrix. Both materials were found to have useful properties for 3D additive manufacturing (AM) and repair components manufactured from high gamma prime precipitation hardened superalloys. GT2018-75870

Copyright (c) 2018 by ASME
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