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

Strizak, J. P. ; DiStefano, J. R.

Technical Information Center Oak Ridge Tennessee

关键词: Stainless steels;    Fatigue(Materials);    Spallation;    Mercury(Metal);    Crack propagation;   

RP-ID  :  DE2001777702

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports 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 -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.