The fatigue behaviors of butt welds ground flush in the super-long life regime
Source abstract
Abstract
Abstract The fatigue properties of EH36 steel and butt welds ground flush in the super-long life regime were studied in this paper. Experimental results indicate that fatigue fracture may still occur during 10 8 –10 10 cycles, which is incompatible with conventional method of using the fatigue strength corresponding to 1 × 10 7 cycles to design welding structure serving in the super-long life regime. Scanning electron microscope analysis shows that fatigue crack mainly initiates from internal defects in the fusion face for butt welds ground flush. A new kind of “fish-eye” is found in welded joints. The relation between fatigue life and area of defects in the butt welds ground flush is confirmed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Welding Techniques and Residual Stresses · Advanced Welding Techniques Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. An understanding of very high cycle fatigue of metals10.1016/S0142-1123(03)00147-6 ↗
2. Fatigue properties of Al–1Mg–0.6Si foam at low and ultrasonic frequencies10.1016/S0142-1123(01)00025-1 ↗
3. Very high cycle fatigue of normalized carbon steels10.1016/j.ijfatigue.2005.05.016 ↗
4. Fatigue crack growth and thresholds at ultrasonic frequencies10.1016/j.ijfatigue.2005.06.058 ↗
5. Ultrasonic fatigue tests on bearing steel AISI-SAE 52100 at frequency of 20 and 30kHz10.1016/S0142-1123(03)00161-0 ↗
6. Ultra-long cycle fatigue of high-strength carbon steels. Part II: estimation of fatigue limit for failure from internal inclusions10.1016/S0921-5093(03)00136-9 ↗
7. Fatigue behavior of carburized steel with internal oxides and nonmartensitic microstructure near the surface10.1007/BF02648572 ↗
8. Fatigue strength of various surface hardened steels
9. How and why the fatigue S–N curve does not approach a horizontal asymptote10.1016/S0142-1123(01)00123-2 ↗
10. Super-long life tension–compression fatigue properties of quenched and tempered 0.46% carbon steel10.1016/S0142-1123(98)00028-0 ↗
11. There is no infinite fatigue life in metallic materials10.1046/j.1460-2695.1999.00183.x ↗
12. Gigacycle fatigue properties of 1800MPa class spring steels10.1111/j.1460-2695.2004.00737.x ↗
13. High-cycle fatigue crack initiation and propagation behavior of high-strength spring steel wires10.1046/j.1460-2695.1999.t01-1-00184.x ↗
14. Estimation of maximum inclusion size and fatigue strength in high-strength ADF1 steel10.1016/j.msea.2004.11.015 ↗
15. Fatigue behavior of iron based sintered material: a review10.1179/imr.1997.42.1.1 ↗
16. Murakami · 2002 · 2927
17. Fukumoto S, Mitchell A. In: Proceedings of the 1991 vacuum metallurgy conference on the melting and processing of specialty materials I& SS, Pittsburgh: USA; 1991. p. 3–7.
18. The fatigue behaviors of zero-inclusion and commercial 42CrMo steels in the super-long fatigue life regime10.1016/j.actamat.2004.06.031 ↗
19. Essential characteristics and influential factors for very-high-cycle fatigue behavior of metallic materials
20. Subsurface crack initiation and propagation mechanism in high-strength steel in a very high cycle fatigue regime10.1016/j.ijfatigue.2005.08.015 ↗
21. Specimen design for fatigue testing at very high frequencies10.1006/jsvi.2001.3779 ↗
22. Failure mechanisms of automotive metallic alloys in very high cycle fatigue range10.1016/j.ijfatigue.2005.09.019 ↗
23. Zhang · 1999
24. Mechanisms of fatigue failure in ultralong life regime10.1046/j.1460-2695.2002.00576.x ↗
25. On the mechanism of fatigue failure in the superlong life regime10.1046/j.1460-2695.2000.00328.x ↗
26. Characteristic S–N properties of high-carbon–chromium–bearing steel under axial loading in long-life fatigue10.1046/j.1460-2695.2002.00574.x ↗