Table of Contents
Fatigue strength: PH1 steel (Sxx/ST1)
This page presents the S-N curves and fatigue limit of PH1 steel samples that underwent shot-peening, heat treatment and machining that removed allowance of 1mm (in that order), obtained using the bending tests of rotating bars with AM layers angle 45° to the axis of rotation.
Production and prost-processing conditions
| Build orientation of longitudinal axis | angle 45° |
|---|---|
| Position with respect to inert gas flow | undefined |
| Post-processing | shot-peening → heat treatment → machining allowance 1mm |
Experimental S-N curve
| Experimental method | ISO1143, rotating bending test R=-1 |  |
|---|---|---|
| AM layers | angle 45° to axis of rotation |
Wöhler curve
| Fatigue limit (MPa) | 693 |
|---|---|
| Number of cycles to failure N | N=5,0⋅1039⋅S-11,49 |
| Stress amplitude S (MPa) | S=2843⋅N-0,087 |
Explanation of the terms are given at the page Fatigue strength description.
This page is a part of the section DMLS/SLM: Fatigue design rules.