| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Performance Steels
|
| Presentation Title |
Assessing the Variability in Mechanical Properties of a Martensitic Ultra-High Strength Steel for Performance Optimizations |
| Author(s) |
Joydeep Kundu, Caelan Kennedy, Ibrahim Karaman |
| On-Site Speaker (Planned) |
Joydeep Kundu |
| Abstract Scope |
The appreciable strength and toughness levels in quenched and tempered low-alloy steels enable effective utilization among a broad range of applications. Critical engineering applications like aerospace and bearings often require the highest quality (clean) steel for meeting the stringent performance demands, but for numerous applications, it is unclear how the steel quality affects the mechanical properties and subsequent component performance. This experimental research utilizes a statistical approach to investigate the quantifiable differences in mechanical properties between AISI 4140 steels with different cleanliness levels from multiple steel mills, specifically evaluating the hardness, uniaxial tension, impact and fracture toughness, and fatigue properties. Additionally, the effects of heat treatment (quenching and tempering) parameters on the monotonic, cyclic, and toughness behaviors have also been studied. For efficaciously estimating the performance differences, fatigue and toughness experiments act as the benchmark to evaluate the demarcating criterion in mechanical properties of this particular steel grade. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Mechanical Properties, |