Table of Contents
Fatigue strength: MS1 steel (Vxx/ST4)
This page presents the S-N curves and fatigue limit of MS1 steel samples that underwent shot-peening, heat treatment and machining that removed allowance of 4mm (in that order), obtained using the bending tests of rotating bars with AM layers normal to the axis of rotation.
Production and prost-processing conditions
| Build orientation of longitudinal axis | vertical |
|---|---|
| Position with respect to inert gas flow | undefined |
| Post-processing | shot-peening → heat treatment → machining allowance 4mm |
Experimental S-N curve
| Experimental method | ISO1143, rotating bending test R=-1 |  |
|---|---|---|
| Run-out criterion | 107 cycles | |
| AM layers | normal to axis of rotation |
Wöhler curve
| Fatigue limit (MPa) | 601 |
|---|---|
| Number of cycles to failure N | N=1,48⋅10<html>31</html>⋅S<html>-8,70</html> |
| Stress amplitude S (MPa) | S=3843⋅N<html>-0,115</html> |
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.