Results 61 to 70 of about 497 (176)
Journal of Materials Research and Technology, 2022 This work considers the analytical solution of the contact problem between a conical indenter and a transversely isotropic material, and uses a finite element method to determine the correction coefficient to implement in the analytical solution ...
GuangTao Xu +6 more
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Effect of Normalized Cooling Rate on Structure and Hardness of Gear Steel 18CrNiMo7-6
Teshugang, 2013 Tested steel 18CrNiMo7-6 (/%: 0. 17C, 0. 59Mn, 0. 24Si, 1.56Ni, 1.71Cr, 0. 28Mo) is a case-hardening steel for gear, it is required that the structure of normalized steel is ferrite + pearlite and has lower HB hardness value.
刘金鑫 +3 more
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Journal of Physics: Conference Series, 2020 Abstract The 18CrNiMo7-6 steel billet was prepared by the process of EBT→LF→VD→die casting and forging. The position distribution, composition, type and cause of inclusions in the billet were statistically analysed by ASPEX and scanning electron microscopy. The results show that there are obvious distribution differences of inclusions in
N. Wang +6 more
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AIP AdvancesRack railways commonly operate under extreme conditions—steep gradients, heavy loads, and dry sliding—where wear of the gear–rack pair becomes a critical limitation to both safety and cost-effectiveness.
Haowei Yu +3 more
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Production Practice of 18CrNiMo7-6 Electroslag Process for High-speed Rail Gear Steel
Teshugang, 2023 In order to achieve the goal of high cleanliness of high-speed gear steel，especially the size of single-Particle D spherical inclusions ≤10 μm， electroslag process was developed to produce high-speed rail gear steel 18CrNiMo7-6 （/%：0.15-0.21C， ≤0.40Si，0 ...
Wang Zhixiang, Nan hai, Zhang Jinwen
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Influence of Microalloying on the Surface Layer of a Carbonitrided Steel 18CrNiMo7-6
, 2021 To further enhance the performance of case hardening steels, the surface layer is thermochemically treated. By carbonitriding, a thermochemical process by which carbon as well as nitrogen are brought into the surface layer, the tooth flank load capacity of case hardening steel gears can be dramatically improved in comparison to those elicited by ...
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Influence of Tempering and Cryogenic Treatment on Retained Austenite and Residual Stresses in Carbonitrided 18CrNiMo7-6 Low Alloy Steel [PDF]
, 2019 This work investigated the influence of tempering conditions coupled with cryogenic treatment on thermal stabilization of retained austenite and residual stress distributions in carbonitrided 18CrNiMo76 low alloy steel samples.
Epp, Jérémy, Katemi, Richard J.
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MetalsThis study takes 18CrNiMo7-6 wind power gear steel as the object. Following the first holding stage of isothermal normalizing, the 18CrNiMo7-6 wind power gear blanks were cooled to the isothermal temperature via air cooling (AC) and forced-air cooling ...
Yuhao Wang +5 more
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Journal bearing status identification with acoustic emission measurements and data clustering [PDF]
The laboratory scale journal bearing lubrication regimes were analysed with wide band acoustic emission (AE) measurements. Data analysis was supported by data-based clustering of AE data.
Junttila , J, Ronkainen , H, Tervo , J
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Optimization of heat treatement process for alloyed case hardenening steel [PDF]
, 2013 Bakalářská práce se zabývá posouzením vlivu tepelného zpracování na mikrostrukturu a mechanické vlastnosti středně legované cementační oceli 18CrNiMo7-6. Jedná se o posouzení a navrhnutí vhodné austenitizační teploty.
Roubalová, Jana
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