Phase stability and mechanical properties of wire + arc additively manufactured H13 tool steel at elevated temperatures
Journal Article
·
· Journal of Materials Science and Technology
- Tennessee Technological Univ., Cookeville, TN (United States). Dept. of Mechanical Engineering
- Tennessee Technological Univ., Cookeville, TN (United States). Dept. of Manufacturing and Engineering Technology
- Tennessee Technological Univ., Cookeville, TN (United States). Center for Manufacturing Research
- Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Manufacturing Demonstration Facility (MDF)
- Korea Inst. of Industrial Technology, Ulsan (South Korea). Advanced Forming Process R&D Group
Wire + arc additive manufacturing (WAAM) is considered an innovative technology that can change the manufacturing landscape in the near future. WAAM offers the benefits of inexpensive initial system setup and a high deposition rate for fabricating medium- and large-sized parts such as die-casting tools. Here, AISI H13 tool steel, a popular die-casting tool metal, is manufactured by cold metal transfer (CMT)-based WAAM and is then comprehensively analyzed for its microstructural and mechanical properties. Location-dependent phase combinations are observed, which could be explained by nonequilibrium thermal cycles that resulted from the layer-by-layer stacking mechanism used in WAAM. In addition, remelting and reheating of the layers reduces welding anomalies (e.g., pores and voids). The metallurgical characteristics of the H13 strongly correlate with the mechanical properties. The combinations of phases at different locations of the additively manufactured part exhibit a periodic microhardness profile. Martensite, Retained Austenite, Ferrite, and Carbide phases are found in combination at different locations of the part based on the part’s temperature distribution during additive deposition. Moreover, the tensile properties at elevated temperatures (23 °C, 300 °C, and 600 °C) are comparable to those from other WAAM and additive manufacturing (AM) processes. The X-ray diffraction results verify that the microstructural stability of the fabricated parts at high temperatures would allow them to be used in high temperatures.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); Korea Inst. of Industrial Technology
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1651383
- Journal Information:
- Journal of Materials Science and Technology, Journal Name: Journal of Materials Science and Technology Vol. 67; ISSN 1005-0302
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Investment cast AISI H13 tooling for automotive applications
Wire Arc Additive Manufacturing of Lightweight High Pressure Die Casting Tooling
High temperature tensile properties of H13 tool steel fabricated via binder jet additive manufacturing
Conference
·
Sat Jul 01 00:00:00 EDT 1995
·
OSTI ID:91941
Wire Arc Additive Manufacturing of Lightweight High Pressure Die Casting Tooling
Technical Report
·
Tue Apr 01 00:00:00 EDT 2025
·
OSTI ID:2573293
High temperature tensile properties of H13 tool steel fabricated via binder jet additive manufacturing
Journal Article
·
Mon Jun 23 00:00:00 EDT 2025
· Journal of Materials Research and Technology
·
OSTI ID:2575360