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Synthesis of a 316L stainless steel-copper composite by laser melting

Journal Article · · Additive Manufacturing Letters
 [1];  [2];  [3];  [3];  [2];  [3]
  1. Oregon State University, Corvallis, OR (United States); Advanced Technology and Manufacturing Institute (ATAMI), Corvallis, OR (United States); Oregon State University
  2. Oregon State University, Corvallis, OR (United States)
  3. Oregon State University, Corvallis, OR (United States); Advanced Technology and Manufacturing Institute (ATAMI), Corvallis, OR (United States)

This paper demonstrates a laser melting method to produce a metal matrix composite with a higher thermal conductivity compared to 316 L stainless steel using a Jettable Cu ink. A novel canister was used to control the oxygen level during laser processing to emulate a hybrid inkjet-powder bed fusion technique for doping the stainless steel powder bed with Cu precursor ink. Here, the thermal conductivity of the composite was found to be 187% higher than that of 316 L stainless steel, while the microhardness decreased by 39%. Microstructural results show opportunities to further enhance the thermal conductivity and mechanical properties of the composite by eliminating interfacial cracking.

Research Organization:
RAPID Manufacturing Institute, New York, NY (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Materials & Manufacturing Technologies Office (AMMTO)
Grant/Contract Number:
EE0007888
OSTI ID:
2212437
Journal Information:
Additive Manufacturing Letters, Journal Name: Additive Manufacturing Letters Vol. 3; ISSN 2772-3690
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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