Title

Hardness, Chemical, And Microstructural Studies For Laser-Fabricated Metal Parts Of Graded Materials

Keywords

Direct metal deposition; Ductile metal parts; Graded materials; Hardness testing; Laser-fabricated metal parts; Microstructure; Rapid manufacturing; Solidification

Abstract

Laser deposition of metal layers has been recognized, in recent years, as a one-step process to fabricate metal parts instead of the two-step process of producing a mold and then using the mold to cast a metal part. The authors have employed this one-step technique to create graded materials by varying the part's composition from 100% stainless steel to a 100% nickel-based superalloy. Mechanical properties of these graded materials are measured and the effects of slow solidification rates are investigated. A multimode CO2 laser is operated at 270 W to produce wall-like structures of graded materials. The CO2 laser beam is focused to a spot size of 600 μm using a 127 mm focal length lens. © 2000 Laser Institute of America.

Publication Date

1-1-2000

Publication Title

Journal of Laser Applications

Volume

12

Issue

5

Number of Pages

205-209

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.2351/1.1309552

Socpus ID

0040567000 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0040567000

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