AI Article Synopsis
- The article examines how strain-assisted tempering (SAT) enhances the fatigue properties of 54SiCr6 steel, commonly used in automotive spring wires.
- The strong characteristics of this steel lead to the potential for lighter and smaller coil spring designs, which can improve vehicle fuel efficiency and stability.
- Through various testing methods, including tensile and fatigue tests, the study reveals significant improvements in the static and fatigue properties of the steel treated with SAT and laser shock peening, although the material quality was deemed inadequate for further processing.
Article Abstract
This article deals with the effect of strain-assisted tempering (SAT) on the fatigue properties of 54SiCr6 steel used for spring steel wires in a wide variety of automotive applications, including coil springs. This steel spring wire is extremely strong, having a high elastic limit and yield point, giving the steel excellent energy accumulation and fatigue properties. This combination opens up new possibilities in helical and cylindrical coil spring design, resulting in the reduction of both size and weight. Lightweight coil springs lead to improvements in fuel consumption, stability and vehicle traction. A large plastic deformation and SAT were applied to enhance the yield point of the study material. Improvements in the static and cyclic properties of steel springs were investigated using tensile tests and 3PB fatigue tests at ambient temperature. In addition, an advanced laser shock peening (LSP) process was employed to increase the fatigue resistance of the SAT material. The results presented here show great improvements in the static and fatigue properties over commercial steel treatment. The material quality of the wires was evaluated to be insufficient for further processing with cold coiling.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10179137 | PMC |
| http://dx.doi.org/10.3390/ma16093327 | DOI Listing |
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