Effect of environment-assisted cracking on the premature fatigue failure of high-strength valve springs
Source abstract
Abstract
Abstract In this work, the failure mechanism of four high-strength valve springs were investigated. It shows that the premature fatigue failure of valve spring can be attributed to the presence of an intergranular surface crack formed by the environment-assisted cracking (EAC) mechanism. The surface cracks significantly reduces the fatigue strength to a level of 320–350 MPa, which is much lower than the designed stress (720 MPa). Detailed analysis reveal that the reduced shot peening effect caused by the soft and brittle PbO adhesion contributes to the occurrence of EAC. Furthermore, it suggests that the nucleation and propagation of EAC crack controls the failure process.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical stress and fatigue analysis · Mechanical Failure Analysis and Simulation · Mechanical Engineering and Vibrations Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
Show source-provided references
1. Gigacycle Fatigue Behavior of 1800 MPa Grade High Strength Spring Steel for Automobile Lightweight10.1016/S1006-706X(14)60095-9 ↗
2. Effect of quenching and tempering temperature on microstructure and tensile properties of microalloyed ultra-high strength suspension spring steel10.1016/j.msea.2019.138272 ↗
3. A new model for predicting the gigacycle fatigue strength of high-strength steels10.1016/j.msea.2018.11.109 ↗
4. Super strength of 65Mn spring steel obtained by appropriate quenching and tempering in an ultrafine grain condition10.1016/j.msea.2019.03.059 ↗
5. Achievement of High Ductility and Ultra-high Strength of V-Nb Microalloyed Spring Steel by Austempered Multiphase Microstructure10.1007/s11661-020-05777-2 ↗
6. Corrosion fatigue failure analysis and service life prediction of high strength steel wire10.1016/j.engfailanal.2020.104440 ↗
7. Atomic-scale investigations of isothermally formed bainite microstructures in 51CrV4 spring steel10.1016/j.matchar.2019.03.038 ↗
8. Fatigue behavior of bainitic and martensitic super clean Cr–Si high strength steels10.1016/j.ijfatigue.2013.12.007 ↗
9. Fatigue failure analysis of a spring for elevator doors10.1016/j.engfailanal.2009.08.018 ↗
10. Premature fatigue failure of a spring due to quench cracks10.1016/S1350-6307(99)00048-5 ↗
11. Failure analysis of spring of hydraulic operated valve10.1016/j.engfailanal.2018.09.013 ↗
12. Coil spring failure and fatigue analysis10.1016/j.engfailanal.2019.02.017 ↗
13. Effect of non-metallic inclusions on the fatigue strength of helical spring wire10.1016/j.engfailanal.2014.05.013 ↗
14. Premature fracture in automobile leaf springs10.1016/j.engfailanal.2008.02.008 ↗
15. Failure analysis of a set of stainless steel disc springs10.1016/j.engfailanal.2005.01.011 ↗
16. The effect of undissolved and temper-induced (Ti, Mo)C precipitates on hydrogen embrittlement of quenched and tempered Cr-Mo steel10.1016/j.corsci.2019.108421 ↗
17. Study on corrosion resistance of high-strength medium-carbon spring steel and its hydrogen-induced delayed fracture10.1016/j.conbuildmat.2019.117815 ↗
18. The Role of Plastic Strain on the Delayed Fracture Behavior of Twinning-Induced Plasticity Steels10.1007/s11661-018-5087-0 ↗
19. Failure analysis of a motor-car coil spring10.1016/j.csefa.2013.12.004 ↗
20. Role of crack-tip hydrostatic stress in environmental assisted fatigue cracking
21. Literature review of fatigue assessment methods in residual stressed state10.1016/j.engfailanal.2020.104379 ↗
22. Shot peening optimisation by means of 'DOE': Numerical simulation and choice of treatment parameters
23. Effect of Shot Peening on Residual Stress Distribution and Microstructure Evolution of Artificially Defected 50CrV4 Steel10.1007/s11665-020-05200-2 ↗
24. Evaluation of delayed fracture property of outdoor-exposed high strength AISI 4135 steels10.1016/j.corsci.2010.05.038 ↗
25. Axial Tension and Compression Load Fatigue Behavior and Mechanism of Spring Steel 55SiCrA
26. Smallman · 2016
27. Y. Murakami, Metal Fatigue: Effects Of Small Defects And Nonmetallic Inclusions, Elsevier Ed. (2002).