|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Metals: Establishing Location Specific, Processing-Microstructure-Property-Relationships III
||Bimetallic Structure of Inconel 718 and GRCop-84 Processed Using LENS™
||Bonny Onuike, Bryan Heer, Amit Bandyopadhyay
|On-Site Speaker (Planned)
Bimetallic structures of Inconel 718 and GRCop-84 has been successfully processed using laser engineering net shaping (LENS™). GRCop-84 is a high thermal conductive copper alloy. Inconel 718, a nickel – based superalloy is a high-temperature, corrosion-resistance material. The potentials of the two alloys were combined to form a bimetallic structure with much desirable thermophysical properties. Copper and nickel form single-phase solid solution, and compositional gradation technique was employed in developing the bimetallic structure which showed improved copper-nickel intermetallic diffusion as well as the gradual transition of hardness profile across the bimetallic interface. Deposition of GRCop-84 on Inconel 718 increased the thermal diffusivity of Inconel 718 by nearly two order of magnitude. The strong and diffused interphase prevented any mechanical damage due to thermal stresses. Presentation will include LENS™ processing and process optimization along with results from thermal and mechanical characterization.
||Planned: Supplemental Proceedings volume