Fatigue Properties of Type 316 LN Stainless Steels as a Function of Frequency and Waveform

DiStefano, J.R.

Oak Ridge National Laboratory

关键词: Amplitudes;    Air;    Wave Forms;    36 Materials Science;    Stainless Steels;   

DOI  :  10.2172/777702
RP-ID  :  ORNL/TM-2000/270
RP-ID  :  AC05-96OR22464
RP-ID  :  777702

美国|英语

来源: UNT Digital Library

【 摘 要 】

The low cycle fatigue behavior of type 316LN stainless steel was investigated in air and mercury at frequencies from 0.1 to 10 Hz. Cyclic stress ratios (R) of {minus}1 and 0.1 were used with sinusoidal, triangular and positive sawtooth wave forms. Mercury appears to reduce fatigue life at high stress amplitudes, but the endurance limit may be unaffected. Low frequency and mean stress decreased the fatigue endurance limit, but type of waveform did not appear to affect fatigue life under the conditions of these tests.