Enhancement of the mechanical properties of EN52CrMoV4 spring steel by deep cryogenic treatment

Özden, Reşat Can; Anık, Mustafa

doi:10.1002/mawe.201900122

Cited by 14 publications

(8 citation statements)

References 31 publications

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“…Due to the elimination of residual austenite and initiation of nucleation sites, many very fine carbide particles are precipitated in DCT [ 10 ], which can improve the hardness, wear resistance, and other mechanical properties of metal materials [ 11 ]. Ozden et al [ 12 ] evaluated the effect of DCT on the microstructure and mechanical properties, which illustrated that applied DCT before the tempering can homogeneously distribute fine carbides. However, the further exploration should be developed to analyze the effect of DCT on the properties of polymer materials [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Research on the Morphology Reconstruction of Deep Cryogenic Treatment on PtRu/nitrogen-Doped Graphene Composite Carbon Nanofibers

Zhu²,

Wang

et al. 2022

Materials

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To improve the performance of PtRu/nitrogen-doped graphene composite carbon nanofibers, the composite carbon nanofibers were thermally compensated by deep cryogenic treatment (DCT), which realized the morphology reconstruction of composite carbon nanofibers. The effects of different DCT times were compared: 12 h, 18 h, and 24 h. The morphology reconstruction mechanism was explored by combining the change of inner chain structure and material group. The results showed that the fibers treated for 12 h had better physical and chemical properties, where the diameter is evenly distributed between 500 and 800 nm. Combined with Fourier infrared analysis, the longer the cryogenic time, the more easily the water vapor and nitrogen enter polymerization reaction, causing changes of chain structure and degradation performance. With great performance of carbonization and group transformation, the PtRu/nitrogen-doped graphene composite carbon nanofibers can be used as an efficient direct alcohol fuel cell catalyst and promote its commercialization.

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Section: Introductionmentioning

confidence: 99%

Research on the Morphology Reconstruction of Deep Cryogenic Treatment on PtRu/nitrogen-Doped Graphene Composite Carbon Nanofibers

Zhu²,

Wang

et al. 2022

Materials

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“…The effects of DCT on the mechanical and microstructure of the medium carbon steel EN 52CrMoV4 were investigated by Ozden et al (2020). The steel’s mechanical characteristics have been improved by producing uniformly dispersed fine carbides in the microstructure [ 9 ]. Abbas 2019 Dissolving of austenite, homogeneous carbide distribution, and precipitation of fine secondary carbides contribute to increased hardness in most steels [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Mechanical and Wear Behaviour of Deep Cryogenically Treated EN 52 Silchrome Valve Steel

et al. 2022

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This study has compared the performance of cryogenically processed EN 52 Silchrome valve steel with untreated material. After completing the standard heat treatment process, EN 52 steel material specimens are subjected to a deep cryogenic process with varying soaking temperatures. The parameters of the deep cryogenic procedure were changed to find the best wear qualities. The key features of valve steel, such as microstructure, mechanical, and wear behaviour are evaluated by conducting a test study. The evolution of wear mechanisms after enhancing qualities of EN 52 steel is studied using scanning electron microscopy. The mechanical and wear behaviour improved due to factors such as fine carbide precipitation, conversion of residual austenite, and carbide refining formed after cryogenic treatment. With a maximum reduction in wear rate of up to 45%, the deep cryogenic treatment of EN 52 steel with a soaking temperature of −140 °C was the ideal parameter. All three cryo-treated samples had better properties than the untreated EN 52 valve steel.

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“…Developing magnesium based new alloys, composites and microstructural modification by mechanical processing are the important strategies adopted to enhance the bulk properties of magnesium [3]. Usually, thermo‐mechanical treatments are used to alter the mechanical properties of metals and alloys by modifying the microstructure [4, 5]. On the other hand, severe plastic deformation techniques also enhance the mechanical performance of magnesium alloys without changing the geometry [6].…”

Section: Introductionmentioning

confidence: 99%

Mechanical behavior and wear characteristics of fine grained ZE41 magnesium alloy

Babu

Babu²,

Janardhana

2021

Materialwissenschaft Werkst

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ZE41 magnesium alloy was successfully produced by friction stir processing and grain refinement was achieved from a starting size of 107 μm±6.7 μm to 3.5 μm±1.5 μm. MgZn intermetallic which was appeared as network like structure at the grain boundaries before friction stir processing was greatly affected due to the severe plastic deformation and broken as small particles as observed from the microstructural studies. Higher hardness (≈30 %) was measured for the fine grained ZE41 magnesium alloy compared with the base alloy due to the grain refinement. From the tensile tests, yield strength and ultimate tensile strength was significantly increased at the cost of decreased ductility reflected in lower strain for the fine grained ZE41 compared with the base alloy. Wear studies showed higher coefficient of friction and lower mass loss for the grain refined ZE41 magnesium alloy. From the results, it can be understood that the grain refinement achieved by friction stir processing has a profound influence on enhancing the mechanical and tribological properties of ZE41 magnesium alloy.

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Enhancement of the mechanical properties of EN52CrMoV4 spring steel by deep cryogenic treatment

Cited by 14 publications

References 31 publications

Research on the Morphology Reconstruction of Deep Cryogenic Treatment on PtRu/nitrogen-Doped Graphene Composite Carbon Nanofibers

Research on the Morphology Reconstruction of Deep Cryogenic Treatment on PtRu/nitrogen-Doped Graphene Composite Carbon Nanofibers

Microstructure, Mechanical and Wear Behaviour of Deep Cryogenically Treated EN 52 Silchrome Valve Steel

Mechanical behavior and wear characteristics of fine grained ZE41 magnesium alloy

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