Table 1 Values of the material sensitivity coefficient to stress concentration for various types of materials.
From: Calculating the fatigue strength of load-bearing structures of special self-propelled rolling stock
Material type | q |
|---|---|
Cast materials and materials with internal sources of concentration and defects (gray cast iron, etc.) | 0.1–0.2 |
Cast heat-resistant alloys, steel and aluminum castings, modified cast irons | 0.1–0.4 |
Low carbon steels, heat resistant deformable alloys, austenitic corrosion resistant steels, aluminum deformable alloys | 0.3–0.5 |
Medium carbon steels, low alloy steels | 0.4–0.6 |
Structural alloy steels | 0.6–0.7 |
High-alloy steels (such as corrosion-resistant steels of martensitic class), titanium alloys martensitic class), titanium alloys | 0.7–0.9 |
