Additive Manufacturing: Processing, Microstructure and Material Properties of Titanium-based Materials: Poster Session
Sponsored by: TMS Titanium Committee
Program Organizers: Ulf Ackelid, Freemelt AB; Ola Harrysson, North Carolina State University; Peeyush Nandwana, Oak Ridge National Laboratory; Rongpei Shi, Harbin Institute of Technology
Tuesday 4:45 PM
October 19, 2021
Room: Exhibit Hall B
Location: Greater Columbus Convention Center
Poster
P3-9: Characterization of Stresses as a Function of AM Processing Parameters in Commercially Pure Ti: Claire Adams1; Kellen Traxel1; Amit Bandyopadhyay1; David Field1; 1Washington State University
Additive manufacturing can be used to develop desired microstructures for specific mechanical performance. There is currently variability between machines that must be controlled before extensive use of AM. Standardization of processing is still needed to reduce variance in properties and quality. Microstructures can vary throughout a manufactured component. Therefore, understanding microstructure and its relation to mechanical properties during thermal processing can improve and advance the use of AM. This research aims to standardize and develop the AM process, specifically for titanium, and investigate the link between processing, structure, and properties.This research’s main goal was to identify how processing steps result in residual stresses in a printed material and relate these effects to microstructure. Directed energy deposition was used to print commercially pure titanium samples, where parameters such as tool path and energy density were varied. Microstructural differences were observed using nano-indentation, electron microscopy, and electron backscatter diffraction.