Enhancing heavy load wear resistance of AISI 4140 steel through the formation of a severely deformed compound-free nitrided surface layer

Wang, B.; Liu, Bin; Zhang, Xiaodan; Gu, Jianfeng

doi:10.1016/j.surfcoat.2018.09.066

Cited by 38 publications

(15 citation statements)

References 28 publications

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“…Dislocations-phase interface interactions play an important role for structural metals, in not only the strength [ 136 , 137 ], but also other mechanical properties such as ductility and toughness [ 138 ], wear resistance [ 139 ], fatigue properties [ 140 , 141 , 142 , 143 ] and micro-pitting [ 144 ], as well as the properties of heterogeneous structures [ 145 , 146 , 147 ]. All these need the systematic investigations with exquisitely designed experiments and/or simulations.…”

Section: Interactions Between Dislocation and Boundarymentioning

confidence: 99%

Interactions between Dislocations and Boundaries during Deformation

Pan

Zhang

2021

Materials

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The interactions between dislocations (dislocations and deformation twins) and boundaries (grain boundaries, twin boundaries and phase interfaces) during deformation at ambient temperatures are reviewed with focuses on interaction behaviors, boundary resistances and energies during the interactions, transmission mechanisms, grain size effects and other primary influencing factors. The structure of boundaries, interactions between dislocations and boundaries in coarse-grained, ultrafine-grained and nano-grained metals during deformation at ambient temperatures are summarized, and the advantages and drawbacks of different in-situ techniques are briefly discussed based on experimental and simulation results. The latest studies as well as fundamental concepts are presented with the aim that this paper can serve as a reference in the interactions between dislocations and boundaries during deformation.

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Section: Interactions Between Dislocation and Boundarymentioning

confidence: 99%

Interactions between Dislocations and Boundaries during Deformation

Pan

Zhang

2021

Materials

Self Cite

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“…This is because in the early stage of sliding friction, the material is continuously sheared, and the deformation layer is continuously accumulated. And the accumulated deformation layer is continuously washed to ensure the smooth progress of the experiment, so the friction coefficient is increased [39]. In addition, since the hardness of the substrate is relatively lower, the deformation layer accumulated in the sliding friction experiment is easier to be washed, so the friction coefficient of the substrate tends to be stable earlier than that of the coating.…”

Section: Microstructure and Compositionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Nickel-Based Coatings Fabricated through Laser Additive Manufacturing

Zhang

Dai

et al. 2020

Metals

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In this study, single-layer and three-layer nickel-based coatings were fabricated on 316L SS by laser additive manufacturing. The phase characterization, microstructure observation, and microhardness analysis of the coatings were carried out by X-ray diffraction (XRD), scanning electron microscope (SEM), and microhardness tester. And the wear resistance of the coatings was analyzed through dry sliding friction and wear test. The results show that the cross-section microstructure of the three-layer nickel-based coating is different from that of the single-layer one under the influence of heat accumulation; the dendrite structure in the central region of the former is equiaxial dendrite, while that of the latter still remains large columnar dendrites. The existence of solid solution phase γ-(Fe, Ni) and hard phases of Ni17Si3, Cr5B3, Ni3B in the coating significantly improve the wear resistance of the coating, and the microhardness is nearly 2.5 times higher than that of the substrate. However, the average microhardness of multilayer cladding coating is about 48 HV0.2 higher than that of the single-layer cladding coating. In addition, the fine surface structure of the three-layer nickel-based coating improves the wear resistance of the coating, making this coating with the best wear resistance.

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“…The sustainable development of natural gas will be an important part of future research. Natural gas extracted from oil and gas fields needs dewatering treatment before the gathering and transportation process [2], otherwise the pipeline will be blocked and corroded [3]. Traditional dehydration technologies such as triethylene glycol dehydration [4], membrane separation dehydration [5], molecular sieve dehydration [6] and expansion refrigeration dehydration [7] have many problems, which include the need for additives, complex process, high equipment investment and operation costs, and the addition of hydrate inhibitors.…”

Section: Introductionmentioning

confidence: 99%

Study on Supersonic Dehydration Efficiency of High Pressure Natural Gas

Duan

Guo

et al. 2020

Sustainability

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Supersonic cyclone separator is a novel type of natural gas dewatering device that overcomes the shortcomings of traditional dewatering methods. In order to investigate the factors affecting the separation efficiency and improve the separation performance of the supersonic cyclone separator, the discrete particle model was employed in numerical calculation. On the basis of an accurate numerical model, the flow field of supersonic cyclone separator was analyzed, the trajectories of droplets were predicted, and the factors affecting the separation efficiency of droplets were investigated. The numerical results indicated that Laval nozzle could provide the necessary conditions for the condensation of water vapor. The swirler can throw droplets onto the wall or into the separator, both of which are foundations for realizing the separation of droplets. Droplets had three typical trajectories affected by centrifugal effect and inertia effect. The existence of a shock wave increases the swirl intensity of droplets, which is conducive to the separation of droplets. The diameter of droplets should be increased as much as possible in order to improve separation efficiency, and the gas–liquid area ratio should be about 45.25%, and the number of vanes should be 10.

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Enhancing heavy load wear resistance of AISI 4140 steel through the formation of a severely deformed compound-free nitrided surface layer

Cited by 38 publications

References 28 publications

Interactions between Dislocations and Boundaries during Deformation

Interactions between Dislocations and Boundaries during Deformation

Microstructure and Mechanical Properties of Nickel-Based Coatings Fabricated through Laser Additive Manufacturing

Study on Supersonic Dehydration Efficiency of High Pressure Natural Gas

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