Effect of the continuous electron beam process treatment in the surface modification of T10 steel

Wang, Rong; Cui, Hongyang; Huang, Jiayue; Jiang, Hongfei

doi:10.1016/j.nimb.2018.09.004

Cited by 11 publications

(3 citation statements)

References 24 publications

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“…As is known, roughness refers to the microgeometry of a solid body and determines the most important operational propertiesof the surface [L. [16][17][18], primary, wear resistance from abrasion, strength, the density (tightness) of compounds, chemical resistance, and appearance. figure 5 shows the dependence of the parameter of the surface roughness of steel samples 40CrNi on the composition of the electrolyte.…”

Section: Results and Analysismentioning

confidence: 99%

Applying Surface Plasma Hardening for Improving The Tribological Characteristics of Steel Parts

2019

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This work presents the results of experimental studies on the application of surface plasma hardening to improve the tribological characteristics of steel marks of 40CrNi, 20Cr2Ni4A, and 34CrNi1Mn. According to the obtained results, it was established that, after plasma treatment, a modified layer with a thickness of 1-1.2 mm with high hardness and wear resistance is formed, consisting of a hardened layer of fine-grained martensite and, an intermediate layer of perlite and martensite. It was determined that, after treatment with a heating time of 3 min, the microhardness of steels 40CrNi and 20Cr2Ni4A doubles, and the steel 34CrNi1Mn increases 1.6 times, depending on the initial state, and the wear resistance of all steel samples increases, on average, 30 times. słowa kluczowe: utwardzanie plazmowe, mikrotwardość, odporność na zużycie, modyfikowana warstwa powierzchniowa, martenzyt, austenit szczątkowy, współczynnik tarcia, zużycie. StreszczenieW niniejszej pracy przedstawiono wyniki eksperymentalnych badań nad stosowaniem utwardzania plazmy powierzchniowej w celu poprawy charakterystyki tribologicznej próbek stalowych 40CrNi, 20Cr2Ni4A i 34CrNi1Mn. Zgodnie z uzyskanymi wynikami ustalono, że po obróbce plazmowej powstaje zmodyfikowana warstwa o grubości 1-1,2 mm o dużej twardości i odporności na ścieranie, składająca się z utwardzonej warstwy drobnoziarnistego martenzytu i warstwy pośredniej z perlitu i martenzytu. Stwierdzono, że po obróbce z czasem ogrzewania 3 min mikrotwardość stali 40CrNi i 20Cr2Ni4A podwaja się, a stal 34CrNi1Mn wzrasta 1,6 razy, w zależności od stanu początkowego, i odporność na zużycie wszystkich próbek stali wzrasta średnio 30 razy.

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Section: Results and Analysismentioning

confidence: 99%

Applying Surface Plasma Hardening for Improving The Tribological Characteristics of Steel Parts

2019

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“…along with the widespread use of traditional methods of chemical-thermal treatment [5][6][7][8]. Currently, the most promising of them is the electron beam processing method [9,10]. Electron beam processing can significantly increase the physics and mechanical properties of steels [11].…”

Section: Introductionmentioning

confidence: 99%

Impact of Electronic Radiation on the Morphology of the Fine Structure of the Surface Layer of R6M5 Steel

et al. 2021

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In recent decades, great efforts have been made to significantly improve the performance characteristics of high-speed steel using various surface hardening techniques. Electron beam modification is engaging because it has an exceptionally high thermal efficiency and can significantly improve steels’ physical and mechanical properties. This work is devoted to researching the fine structure and changing the structural phase state of the surface layer of R6M5 high-speed steel after exposure to an electron beam. Electron beam treatment of steel R6M5 was carried out on a vacuum installation. The structure and phase composition of P6M5 steel samples were studied by transmission electron microscopy. Determined that after electron irradiation, the steel structure as in the initial state consists of martensite, carbides and residual austenite. After electron irradiation, an increase in the volume fraction of lamellar martensite is observed: the fraction of lamellar martensite in the initial state is 80%, and after irradiation, it is ~90% of the total fraction of α′-martensite. The action of the electron beam led to an increase in internal stresses in α′-martensite. Revealed, the value of the scalar dislocation density in R6M5 steel after exposure to an electron beam is higher than in the initial state. A cardinal difference in the state of the material after exposure to an electron beam is the presence of bending extinction contours in all M6C carbide particles.

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“…T10 steel is good fine-grained steel with suitable toughness and high hardness. It was widely used to produce general cutting tools and cold working dies because of applicable performance and good economy [1]. But the application of T10 steel is restricted because of its low heat-resistance (<250°C) and poor corrosion resistance, as well as its mediocre heat treatment performance (poor hardenability and big quenching distortion).…”

Section: Introductionmentioning

confidence: 99%

Microstructure and properties of Fe–Cr–Ni alloy coatings on T10 steel by laser cladding

Zhou

Liu

et al. 2019

Mater. Res. Express

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In the present study, Fe-Cr-Ni alloy coatings were produced by laser cladding using the blending powder of Cr and Ni on the surface of T10 steel. The composition of phase and microstructure were analyzed by scanning electron microscope (SEM) and x-ray diffraction (XRD). The microhardness and corrosion resistance were investigated. The Fe-Cr-Ni cladding coatings composed of austenites and a few eutectic ferrites. And the content of eutectic ferrite in the grain boundary decreased with the decreasing Cr/Ni ratio of the blending powder. The Cr eq /Ni eq ratio and the ferrite number (FN) of the coatings confirm that the solidification process was the AF mode for the Fe-Cr-Ni cladding coatings. The average microhardness value of Fe-Cr-Ni coatings was about 380HV 0.2 and the Cr/Ni ratio of the blending powder was not an obvious effect. The corrosion resistance of Fe-Cr-Ni alloy coatings which was significantly superior to T10 steel decreased with the decreasing Cr/Ni ratio of the blending powder. This research exhibits that the Fe-Cr-Ni coatings and laser cladding processing have a potential engineering application value on hypereutectoid carbon steel.

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Effect of the continuous electron beam process treatment in the surface modification of T10 steel

Cited by 11 publications

References 24 publications

Applying Surface Plasma Hardening for Improving The Tribological Characteristics of Steel Parts

Applying Surface Plasma Hardening for Improving The Tribological Characteristics of Steel Parts

Impact of Electronic Radiation on the Morphology of the Fine Structure of the Surface Layer of R6M5 Steel

Microstructure and properties of Fe–Cr–Ni alloy coatings on T10 steel by laser cladding

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