| Title |
Prediction of Cryogenic S-N Fatigue Behavior of Cast 304 Stainless Steel |
| Authors |
권재기(Jae Ki Kwon); 이현정(Hyun Jung Lee); 김영주(Young Ju Kim); 김상식(Sang Shik Kim) |
| DOI |
https://doi.org/10.3365/KJMM.2011.49.10.774 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
cast 304 stainless steel; S-N fatigue; cryogenic temperatures |
| Abstract |
S-N fatigue behavior of cast 304 stainless steel was studied at 25, -50 and -196℃ and at a stress ratio of -1 in uniaxial and bending loading condition. It was found that the resistance to S-N fatigue was greatly improved with decreasing testing temperature. The normalized S-N fatigue curves by tensile strength at three different testing temperatures matched each other, suggesting that tensile strength determines the S-N fatigue resistance of cast 304 stainless steel at low temperatures. The effectsof different loading on the resistance to S-N fatigue of cast 304 stainless steel were quantified. The S-N fatigue curves at 25, -50 and -196℃ were described by using Basquin`s law the relationship between the S-N fatigue curve and the testing temperature was obtained by using a simple regression method. |