About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
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Symposium
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Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
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Presentation Title |
Development of High Pressure Heat Treatment for L-PBF F357 |
Author(s) |
Chad M. Beamer, Pontus Nilsson, Andrew Wessman, Donald Godfrey |
On-Site Speaker (Planned) |
Chad M. Beamer |
Abstract Scope |
Recent advancements in HIP equipment now offer the ability to integrate HIP and heat treatment in the HIP furnace with the aid of controllable high-speed cooling and in-HIP quenching and is referred to as High Pressure Heat Treatment. This approach has shown to not only offer improvement in productivity but provides a path to prevent anomalies during heat treatment including thermally induced porosity and part quench cracking or distortion.
This presentation will cover the approach of HPHT. Then a study will be reviewed in detail capturing the use of HPHT on SLM Solutions printed alloy F357. Microstructure, tensile properties, and part distortion is evaluated. The results capture the development of a robust process method making it possible to prevent hydrogen blistering for a defect free AM material, strength properties exceeding that of MMPDS cast properties, and the ability to mitigate geometric distortion of complex part geometries. |