Effect of vanadium on the high-cycle fatigue fracture properties of medium-carbon microalloyed steel for fracture splitting connecting rod

Wang, Hui; Chen, Silian; Zhang, Yongjian; Shao, Chengwei; Han, Dong

doi:10.1016/j.matdes.2014.10.064

Cited by 49 publications

(33 citation statements)

References 17 publications

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“…The FCG behavior is similar for the two tested steels with an exponent m≈3.5, which is consistent with the results available in literatures [15,20].…”

Section: Fatigue Crack Growth Ratesupporting

confidence: 91%

“…For the smooth specimens of both tested steels, all the fractures were originated from specimen surface through slip band extrusions/intrusions mechanism, which implies that microstructure plays a controlling role in fatigue crack initiation [19]. This result is in agreement with that reported for the HCF behavior of MA medium carbon steels [19,20]. As expected, all the fractures were initiated from notch root for the notched specimens.…”

Section: Fatigue Fracture Surfacesupporting

confidence: 89%

“…For MA ferritic-pearlitic steel like F+P steel in the present study, it has been confirmed that fatigue crack prefers initiating along ferrite/pearlite boundaries [20,28]. This is mainly owing to the hardness of ferrite is generally lower than that of pearlite and thus deformation is mainly confined to ferrite under cyclic loading.…”

Section: Fatigue Crack Initiation and Propagation Behaviorsupporting

confidence: 75%

“…This is mainly owing to the hardness of ferrite is generally lower than that of pearlite and thus deformation is mainly confined to ferrite under cyclic loading. Therefore, ferrite strengthening to raise slip band initiation stress and thus to delay crack initiation is the key point to improve its fatigue properties, which has been thoroughly discussed elsewhere [20].…”

Section: Fatigue Crack Initiation and Propagation Behaviormentioning

confidence: 99%

“…In recent years, the need for vehicles' weight reduction leads increasing demands for increasing strength, especially for increasing fatigue strength, of MA medium carbon steels. Therefore, increasing attentions have also been paid to fatigue fracture behavior of MA medium carbon steels for a proper selection or replacement of materials besides strength and toughness [2,[13][14][15][16][17][18][19][20]. Moreover, many actual forged components contain inevitable geometrical slight discontinuities or generally term of notches, which could generate local stress and strain concentrations in the notch area when are loaded.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

High cycle fatigue behavior of V-microalloyed medium carbon steels: A comparison between bainitic and ferritic-pearlitic microstructures

Wang

Zhang

Zhao

et al. 2016

International Journal of Fatigue

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“…The FCG behavior is similar for the two tested steels with an exponent m≈3.5, which is consistent with the results available in literatures [15,20].…”

Section: Fatigue Crack Growth Ratesupporting

confidence: 91%

Section: Fatigue Fracture Surfacesupporting

confidence: 89%

Section: Fatigue Crack Initiation and Propagation Behaviorsupporting

confidence: 75%

Section: Fatigue Crack Initiation and Propagation Behaviormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

High cycle fatigue behavior of V-microalloyed medium carbon steels: A comparison between bainitic and ferritic-pearlitic microstructures

Wang

Zhang

Zhao

et al. 2016

International Journal of Fatigue

Self Cite

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Improvement of microstructure and properties of air‐cooled 46MnVS5 forging steel rod for fracture splitting connecting by thermomechanical control process (TMCP) and by niobium micro alloying

Zhang

Fang

Zhang

et al. 2020

Materialwissenschaft Werkst

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Microstructure control and properties of air‐cooled high‐strength 46MnVS5 forging steel rod for fracture splitting connecting were systematically investigated by quantitative metallographic analysis, thermomechanical simulation and industrial trials etc. The results indicate that the critical cooling rate for bainite transformation in the steel is about 1.5 °C/s–2 °C/s during continuous cooling. Cooling parameters are optimized in two sections. That is, the specimen is firstly cooled to 750 °C at a rate of 4 °C/s, then continuously cooled to 570 °C at 1 °C/s, 1.5 °C/s. Addition of 0.024 wt.% niobium improves the fracture splitting performance by 10 %–20 % reduction of decarburization sensitivity. Finally, the optimized parameters for the niobium micro alloyed steel in the laboratory were successfully applied to produce the connecting rod with excellent fracture splitting performance on the traditional production line.

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Vanadium Microalloyed 0.25 C Cast Steels Showing As-Forged Levels of Strength and Ductility

Kostryzhev

Morales-Cruz

Zuno-Silva

et al. 2016

steel research int.

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Application of cast steels instead of hot forged or rolled ones will significantly decrease manufacturing costs and the final product price. However, low levels of mechanical properties in cast steels, especially ductility, can slow down the substitution of forged and rolled steels with the cast. In the present work, the authors study the effect of 0.01-0.12 wt% vanadium additions on the microstructure and mechanical properties of 0.25 wt% C cast steels. The yield stress, ultimate tensile strength, and elongation to failure in the studied cast steels are 730-750 MPa, 955-1002 MPa, and 12.3-21.5%, respectively, which correspond to those in hot forged and rolled steels with similar compositions. So, high property values in the 0.25 wt% C cast steels are shown here for the first time. The simultaneous increase in strength and ductility with an increase in V content follow a decrease in pearlite fraction, interlamellar spacing, and average pearlite area size; an increase in amount of degenerated pearlite; an increase in V-rich particle volume fraction and number density in ferrite and pearlite; the occurrence of interphase precipitation (in 0.12 wt% V steel), and an increase in dislocation density in ferrite and pearlite.

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Effect of vanadium on the high-cycle fatigue fracture properties of medium-carbon microalloyed steel for fracture splitting connecting rod

Cited by 49 publications

References 17 publications

High cycle fatigue behavior of V-microalloyed medium carbon steels: A comparison between bainitic and ferritic-pearlitic microstructures

High cycle fatigue behavior of V-microalloyed medium carbon steels: A comparison between bainitic and ferritic-pearlitic microstructures

Improvement of microstructure and properties of air‐cooled 46MnVS5 forging steel rod for fracture splitting connecting by thermomechanical control process (TMCP) and by niobium micro alloying

Vanadium Microalloyed 0.25 C Cast Steels Showing As-Forged Levels of Strength and Ductility

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