Browse Publications Technical Papers 2001-01-4060
2001-03-05

Influence of Surface Finish on High Cycle Fatigue Behaviour of a 304l Austenitic Stainless Steel 2001-01-4060

The aim of the study is to determine the influence of surface parameters on the high cycle fatigue behaviour of a 304L austenitic stainless steel. These parameters are of two types: mechanical (roughness, residual stresses) and microstructural (strain-hardening and phase transformation). For the need of the study, different surfaces have been prepared, using turning, grinding or polishing. These preparations, depending on the machining severity, have led to rugosities or hardening more or less important, and to the introduction of tensile residual stresses more or less severe. One turning condition have led to a partial transformation of the initial austenite into martensite.
In order to determine the importance of these parameters, fatigue tests have been performed at room temperature for a positive stress ratio (R = 0.05) on samples presenting the above-mentioned surface preparations. The comparison of the responses of the different samples shows that the polished ones have a greater fatigue performance than the others: the fatigue limit is lowered of nearly 15% when specimens are turned or ground.
The influence some parameters may have on the fatigue resistance is discussed here. Some observations are also made in order to explain the differences observed between the samples.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

The Effect of Composition and Microstructure on the Pitting Fatigue of Carburized Steel Cases

740222

View Details

TECHNICAL PAPER

Fatigue Properties of Cold-Rolled Sheet Steels

790461

View Details

TECHNICAL PAPER

Effect of Coating Structure on Powdering Resistance of Galvannealed Steel Sheet

920174

View Details

X