About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Special Session
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Presentation Title |
Development of Bimetallic Casting for Wear Performance through Infiltration of Additively Manufactured Metal Lattice Structures |
Author(s) |
James Chandler Liggett, Dean A. Snelling, Mingzhi Xu, Oliver J. Myers, Scott M. Thompson |
On-Site Speaker (Planned) |
James Chandler Liggett |
Abstract Scope |
High chromium white iron is an alloy frequently employed in the production of abrasion resistive wear components. Although this alloy demonstrates excellent wear performance from the formation of chromium carbides, it is brittle and lacks toughness. Impact resistance is often of great importance for ground engaging wear components, and for this reason a method is proposed by which high chromium white iron wear components may be reinforced by the formation of a bimetallic composite. In this research, an additively manufactured lattice structure of 316L stainless steel is infiltrated with high chromium white iron via the metal casting process. This procedure results in a bimetallic casting of reinforced white iron. Through complete infiltration, partial metallurgical diffusion bonding was observed between the two alloys. Furthermore, mechanical and metallurgical testing results validated this method as a means of reinforcing high chromium white iron castings for applications requiring high abrasion and impact resistance. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |