Advances in Characterization and Certification of Additively Manufactured Alloys and Their Feed Materials
The chemical characteristics of the feed materials and the metal alloys are typically evaluated using analytical techniques such as ICP, Glow Discharge Mass Spectrometry (GD-MS), Laser Induced Breakdown Spectroscopy (LIBS), XRF, IGA and Residual Gas Analysis (RGA). Comparative analytical techniques require calibration and verification with certified reference materials. While certified reference materials exist for many cast alloy grades, there currently are limited reference materials for additively manufactured powders, or the alloys produced by this process.
We present new, certified reference materials of additive manufacturing powders for three commonly printed alloy grades; Ti-6Al-4V, 316L type stainless steel, and Inconel 718, and include our findings from chemical characterization studies. These alloy types have wide-spread applications in aerospace, and in medical device industry. In addition, we present reference materials for the alloys printed from these powders to alloy quality control at the pre-printing and posting printing stage to monitor any variation induced by the printing process. The Certified Reference Materials (CRMs) have been produced using in an ISO 17034 accredited process, and chemical analysis has been conducted in ISO/IEC 17025:2017, ISO 9001:2015, and NadCap accredited, materials characterization laboratory.