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Fatigue strength: CX steel (Vxx/TMS)

This page presents the S-N curves and fatigue limit of CX steel samples that underwent heat treatment, machining that removed allowance of 0.5mm and shot-peening (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 heat treatment → machining allowance 0.5mm → shot-peening

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) 512
Number of cycles to failure N N=1,98⋅1025⋅S-6,76
Stress amplitude S (MPa) S=5545⋅N-0,148

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.

2.dr/ · Last modified: 2022/01/10 10:28 by soskicz

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