| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Performance Steels
|
| Presentation Title |
Effect of HIP and Annealing Conditions on Mechanical Properties of 15-5PH Stainless Steel |
| Author(s) |
Sung-Min Park, Jun-Won Yoon, Jeongchan Lee, Kwangsuk Park, Sung-Hwa Ji, Donghoe Kim, Chang-Soo Park |
| On-Site Speaker (Planned) |
Sung-Min Park |
| Abstract Scope |
The 15-5PH stainless steel is known for forming well-dispersed nano-sized Cu precipitates in the lath martensite matrix of BCC structure, leading to high hardness, strength and excellent corrosion resistance. Furthermore, due to its superior ductility relative to strength, 15-5ph stainless steel is widely used in engine parts, aircraft components, and nuclear reactor components requiring high transverse strength and toughness.
In this study, Charpy impact and Vickers hardness tests were conducted to evaluate the effect of the mechanical properties after HIP (Hot Isostatic Pressing) and heat treatment conditions. The HIPed samples showed inferior mechanical properties than that of the Un-HIPed samples. Additionally, SEM, EBSD, and TEM were employed to analyze the microstructural changes. Primary austenite grain size was affected by the HIP and heat treatment conditions.
Based on the above results, refining the primary austenite grain size is necessary to achieve superior mechanical properties of the 15-5PH stainless steel. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Mechanical Properties, Process Technology |