Rolling contact fatigue and damage characteristic of AISI 9310 steel with pre-laser shock peening treatment

Song, Jingdong; Luo, Sihai; Liang, Xiaoqing; Cao, Zhenyang; Zhao, Wei; Pu, Changgeng; He, Weifeng

doi:10.1016/j.ijfatigue.2021.106588

Cited by 25 publications

(3 citation statements)

References 33 publications

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“…For example, Chang et al [44] developed a new type of railway wheel material that uses a surface modification technique to improve its thermal stability and wear resistance. Similarly, Song et al [45] proposed a new surface treatment technique that uses laser shock peening (LSP) to enhance the fatigue resistance and crack propagation behavior of railway wheelsets. Moreover, the impact of thermal loads on railway wheelsets can be better understood through advanced modeling and simulation techniques.…”

Section: Introductionmentioning

confidence: 99%

High-Cycle Fatigue Behavior of D2 Wheel Steel under Uniaxial and Multiaxial Loading Conditions for Potential Applications in the Railway Industry

Zhao

2023

Crystals

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This study investigates the fatigue damage evolution mechanisms of D2 wheel steel under high-cycle uniaxial and multiaxial loading conditions, with a focus on determining the fatigue crack growth threshold (FCGT). Uniaxial and multiaxial FCGT tests were performed on pre-cracked D2 wheel steel specimens subjected to high-frequency cyclic loading at stress ratios (R) of 0.1. The results indicate that the FCGT for D2 wheel steel under uniaxial loading conditions ranges between 8–9 MPa.m0.5, while under multiaxial loading conditions, it ranges between 6–9 MPa.m0.5. Scanning electron microscopy analysis revealed differences in the crack propagation mechanisms between the uniaxial and multiaxial tests, with cracks deviating from their path and following the microstructure in the uniaxial tests, and cracks propagating along planes of weakness in the multiaxial tests. These findings provide insights into the high-cycle fatigue behavior of D2 wheel steel under different loading conditions for potential applications in the railway industry.

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Section: Introductionmentioning

confidence: 99%

High-Cycle Fatigue Behavior of D2 Wheel Steel under Uniaxial and Multiaxial Loading Conditions for Potential Applications in the Railway Industry

Zhao

2023

Crystals

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“…Zhou Liucheng et al [12] found that the residual compressive stress in the surface layer of strengthened Ti-6Al-4V titanium alloy is significantly increased by LSP, and the crystalline grains are refined effectively. The research of Ho H. et al [13] and Song Jingdong et al [14] showed that residual compressive stress and grain refinement were beneficial to improving the bending fatigue and contact fatigue performance of metal components.…”

Section: Introductionmentioning

confidence: 99%

Effect of Carburizing Composite Laser-Shock Processing on Properties and Microstructure of 20CrNiMo Steel

Chen,

Sun,

et al. 2023

Metals

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In the service process of gears, premature fatigue failure or fracture of gears is often caused by poor surface performance. 20CrNiMo steel is a commonly used material for gears. Laser-shock peening (LSP), carburizing treatment (CT), and hybrid modification of carburizing treatment and laser-shock peening (LSP + CT) were carried out to improve the performance of 20CrNiMo steel. The hardness, residual stress, microstructure, subgrain size, and toughness of the samples were analyzed following various modification methods. It was observed that the properties of the composite-modified gradient structure materials achieved through carburizing and laser-shock peening were superior to those modified using single methods. After the composite treatment of carburizing and laser shocking, the samples exhibited the most significant increase in hardness, up to 916HV0.1, with a surface layer experiencing residual compressive stress as low as −635 MPa. Simultaneously, a gradient microstructure was formed on the surface layer, with 80% of the crystallites being in the nanoscale range. Furthermore, the toughness was notably enhanced. Experimental results confirm the improvement in the properties of 20CrNiMo samples, resulting in the creation of a functionally graded material through the composite treatment of carburizing and laser shocking.

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“…During LSP, strong laser-induced shock waves generate plastic deformations on the part's surface layer, and residual compressive stresses and grain refinement are introduced into the component, improving its mechanical properties [1][2][3]. LSP has been studied globally, with many studies reporting the significant strengthening effects that LSP can induce in metal specimens such as aluminum alloys, stainless steels, alloy steels, carbon steels, titanium alloys, and nickel-based high-temperature alloys [4][5][6][7][8][9][10]. All studies demonstrated that LSP could inhibit the initiation and expansion of fatigue cracks in materials, thus extending the life of parts effectively.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Laser Shock Process Parameters for 40Cr Steel

Chen

Sun

et al. 2022

Coatings

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Laser shock peening (LSP) process parameters have an important influence on the strengthening effect. In this study, theoretical calculations were used to determine a suitable range of stress wave peaks (5.09 GPa–6.36 GPa) for laser shocking, which consider the material properties of alloy steel 40Cr. In addition to theoretical calculations, the finite element numerical simulation of a single-point laser shock was also performed. The residual stresses of specimens under different shock pressure waves were simulated, and then the optimal pulse width was determined as 20 ns and the optimal pulse energy was determined as 10 J. Finally, the influences of different pulse energies on the microhardness, residual stress, microstructure, and shock-affected layer thickness of metallic materials were comprehensively investigated through experiments, and the optimization of the laser shock energy was proved to be 10 J. An optimized combination of parameters of a single-point laser shock for 40Cr was obtained, in which the spot diameter was 3 mm, the pulse width was 20 ns, and the pulse energy was 10 J. The study has implications for the selection of LSP process parameters for alloy steels.

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Rolling contact fatigue and damage characteristic of AISI 9310 steel with pre-laser shock peening treatment

Cited by 25 publications

References 33 publications

High-Cycle Fatigue Behavior of D2 Wheel Steel under Uniaxial and Multiaxial Loading Conditions for Potential Applications in the Railway Industry

High-Cycle Fatigue Behavior of D2 Wheel Steel under Uniaxial and Multiaxial Loading Conditions for Potential Applications in the Railway Industry

Effect of Carburizing Composite Laser-Shock Processing on Properties and Microstructure of 20CrNiMo Steel

Optimization of Laser Shock Process Parameters for 40Cr Steel

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