About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
2025 Graduate Student Poster Contest
|
| Presentation Title |
SPG-2: Binder Jet Additive Manufacturing of M2 Tool Steel: Microstructural Control and Mechanical Enhancement via Hot Isostatic Pressing |
| Author(s) |
Amit Choudhari, Tushar Borkar |
| On-Site Speaker (Planned) |
Amit Choudhari |
| Abstract Scope |
Binder jetting (BJ) offers a cost-effective pathway for fabricating complex components from high-performance alloys such as AISI M2 tool steel. However, the intrinsic porosity of sintered BJ parts remains a critical barrier to their use in demanding tooling applications. This study explores Hot Isostatic Pressing (HIP) as a densification strategy to overcome these limitations. M2 tool steel specimens were produced using two commercial binders, AquaFuse and FluidFuse, followed by sintering at 1270-1300 °C under varying cooling conditions. Across all conditions, HIP significantly enhanced density and mechanical performance, with relative densities exceeding 99 % and compressive strength gains of up to 45%. Microstructural analysis revealed uniformly distributed MC and M₆C carbides, with the FluidFuse binder promoting finer carbide networks and superior hardness retention and hence compressive strength. These findings highlight HIP’s transformative role in advancing binder jetting toward high-performance tool steel applications. |