1 Introduction
2 Experimental Procedure
2.1 Experimental Materials
Materials | C | Si | Mn | P | S |
---|---|---|---|---|---|
BM | ≤ 0.30 | 0.14 | 0.19 | 0.0041 | ≤ 0.15 |
WM | < 0.12 | 0.40 | 1.41 | 0.0075 | < 0.01 |
Materials | Cr | Mo | V | Ni | Cu |
---|---|---|---|---|---|
BM | 2.21 | 0.68 | 0.0634 | 2.11 | ≤ 0.17 |
WM | 0.59 | 0.47 | 0.0028 | 2.10 | < 0.1 |
2.2 LCF Test
2.3 Microstructure Characterization
3 Results and Discussion
3.1 Cyclic Stress-Strain Behavior and Fatigue Life
\(\sigma^{\prime}_{f}\) (MPa) |
b
|
\(\varepsilon^{\prime}_{f}\)
|
c
| n′ | K′ | |
---|---|---|---|---|---|---|
RT | 998.4 | − 0.068 | 0.3617 | − 0.660 | 0.0666 | 842.0 |
300 °C | 925 | − 0.070 | 0.3251 | − 0.731 | 0.0833 | 920.4 |