Results 21 to 30 of about 172 (141)

Effect of carburizing process on high cycle fatigue behavior of 18CrNiMo7-6 steel

open access: yesJournal of Materials Research and Technology, 2022
Carburizing heat treatment is widely used in the fabrication of gears to improve their fatigue performance. The effects of carburizing process on the material properties surface hardness, residual stresses, retained austenite of case-hardened 18CrNiMo7-6 ...
Shengwei Qin   +4 more
doaj   +2 more sources

Contact Fatigue Behavior Evolution of 18CrNiMo7-6 Gear Steel Based on Surface Integrity

open access: yesMetals, 2023
In this work, the surface integrity (surface morphology, microstructure, microhardness, residual stress) of contact fatigue (CF) samples with different numbers of running cycles was comprehensively studied.
Luji Wu   +4 more
doaj   +3 more sources

Effect of cylindrical longitudinal grinding process on surface integrity of 18CrNiMo7–6 steel

open access: yesJin'gangshi yu moliao moju gongcheng, 2022
In order to explore the influence of the grinding process parameters on the surface roughness and surface layer residual stress of 18CrNiMo7–6 steel, the cylindrical longitudinal grinding experiment was carried out by using an end cylindrical grinder ...
Haoyang ZHU   +4 more
doaj   +2 more sources

Influence of Sulfur Content on Inclusion and Fatigue Properties of 18CrNiMo7-6 Gear Steels [PDF]

open access: yesTeshugang
In this paper, two kinds of 18CrNiMo7-6 gear steels with sulfur content of 0.002% (low sulfur content) and 0.022% (high sulfur content) were studied. Pseudo-carburizing samples were obtained by reference to gear heat treatment process, and the effects of
Yu Wenchao   +3 more
doaj   +3 more sources

Indentation Characterization Method for Hardness of Surface-modified Layer [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban, 2021
In order to measure the hardness parameters of the surface-modified layer(SML)of key components after surface modification,in this paper a method to characterize the hardness of the SML was proposed.According to the relationship between hardness and ...
Xu Guangtao   +3 more
doaj   +1 more source

Calibration of emissivity value of 18CrNiMo7-6 steel and study on cylindrical grinding temperature

open access: yesJin'gangshi yu moliao moju gongcheng
To study the variation rule of workpiece temperature concerning machining parameters in the cylindrical transverse grinding process of gear steel, 18CrNiMo7-6 gear steel was selected as the workpiece material, and a CBN grinding wheel was used as the ...
Dong WANG   +4 more
doaj   +2 more sources

EFFECTS OF SHOT PEENING ON HARDNESS OF 18CRNIMO7-6 STEEL BASED ON FINITE ELEMENT ANALYSIS

open access: yesJixie qiangdu, 2022
So far, most of the numerical studies on shot peening are limited in the effects of shot peening parameters on the residual stress and surface morphology. There is still lack of numerical research on shot peening parameters on the hardness.
CHEN HaiKuan   +3 more
doaj   +1 more source

Effect of dressing with form grinding wheel on grinding surface integrity of 18CrNiMo7-6 steel

open access: yesJin'gangshi yu moliao moju gongcheng, 2023
In order to explore the influence of dressing process parameters, such as dressing depth ad, axial feed speed fd and dressing speed ratio qd, on the grinding surface integrity of 18CrNiMo7-6 gear steel, orthogonal experiments were conducted for shaping ...
Wei GAO   +4 more
doaj   +1 more source

Stress Field Simulation and its Experimental Verification of Carburizing-Quenching Process Performed on 18CrNiMo7-6 Steel

open access: yesMedžiagotyra, 2023
The carburizing and quenching process of 18CrNiMo7-6 steel was performed through simulation methods and experiments. The study was carried out to accurately predict the residual stress distribution of carburized samples after the quenching process.
Shengwei QIN, Haiyang MA, Lianxiang WANG
doaj   +1 more source

Study on Inclusions Distribution and Cyclic Fatigue Performance of Gear Steel 18CrNiMo7-6 Forging

open access: yesMetals, 2020
The three-dimensional morphologies of inclusions in gear steel 18CrNiMo7-6 forging were investigated by a non-destructive extraction method, and the cleanliness of radial positions was analyzed, mainly including the variation of total oxygen content and ...
Min Wang   +4 more
doaj   +1 more source

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