Evaluation of Additively Manufactured Ultrahard Steels
Abstract
Recent advances in both alloy development and additive manufacturing have enabled the production of ultrahigh-strength steels in near-net shape parts. Compared with traditional manufacturing methods, such parts would result in significant savings in both time and overall cost due to faster production rates with lower machining requirements and/or material waste. However, before widespread acceptance of such components, these new alloys and production methods must be evaluated to ensure the required properties and performance are achieved. Toward this goal, a series of test samples produced from three different alloys via additive manufacturing were acquired from a Swedish company and evaluated over a range of physical and mechanical properties. Key findings from this study indicated that the sizeable amount of carbides in these alloys resulted in their ultrahigh strengths and hardness but at the cost of reduced tensile ductility. As a result, the alloys were deemed to be best suited for use in applications requiring high wear resistance. Their performance in this area combined with the potential to redesign existing parts by leveraging capabilities offered by additive manufacturing provides an opportunity to develop a new series of high-performance components at lower cost relative to existing alloys.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 09, 2023
- Accession Number
- AD1215157
Entities
People
- Brian Powers
- Caleb Mccoy
- Diana Berman
- Jonathan Ligda
- Monica Ferrera
- Nikhil Murthy
- Paul Moy
- Taylor Cain
- Timothy N. Walter
- Vincent Hammond
Organizations
- United States Army
- University of North Texas