Results 21 to 30 of about 38,847 (163)

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

The Effect of a Gear Oil on Abrasion, Scuffing, and Pitting of the DLC-Coated 18CrNiMo7-6 Steel [PDF]

open access: yesCoatings, 2018
The transmissions of mining conveyors are exposed to very harsh conditions. These are primarily related to the contamination of the gear oil with hard particles coming from coal and lignite, which can cause intensive abrasive wear, scuffing, and even pitting, limiting the life of gears.
Remigiusz Michalczewski   +9 more
openaire   +2 more sources

Abrasive Wear, Scuffing and Rolling Contact Fatigue of DLC-Coated 18CrNiMo7-6 Steel Lubricated by a Pure and Contaminated Gear Oil. [PDF]

open access: yesMaterials (Basel), 2021
Due to extreme working conditions of mining conveyors, which contaminate gear oil with solid particles, their transmissions are exposed to intensive abrasion, scuffing, and even rolling contact fatigue (pitting). These effects shorten gear life.
Tuszyński W   +6 more
europepmc   +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

Influence of Microalloying on the Surface Layer of a Carbonitrided Steel 18CrNiMo7-6

open access: yes, 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 ...
Neipp, Clemens Wolfgang
openaire   +3 more sources

Finite element analysis of effect of double shot peening on residual stress of 18CrNiMo7-6 gear steel

open access: yesJixie chuandong
ObjectiveTo address the issues of uneven residual compressive stress distribution and high surface roughness in gears after shot peening, this study investigates the effect of double shot peening on the surface integrity of 18CrNiMo7-6 carburized gear ...
WANG Zhen, SUN Hao, WANG Guohao
doaj   +2 more sources

Evolution of Inclusions in Gear Steel 18CrNiMo7-6 during 60t LF-VD Reflning Process

open access: yesTeshugang, 2016
The metallurgical flowsheet for steel 18CrNiMo7-6 (/%: 0. 17C, 0. 57Mn, 0. 24Si, 0. 012P, 0. 003S, 1.70Cr, 1. 49Ni, 0. 28Mo) is 60t EAF-LF-VD-2.1t ingot.
刘金鑫   +4 more
doaj   +1 more source

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

Effect of Mould and Hot Top Design on Yield of 6 t Octagonal Ingot of Special Steels

open access: yesTeshugang, 2014
Based on the original 5 t (real 5. 15 t) octagonal ingot mould, with increasing the height of mould from original 1505 mm to 1840 mm, decreasing the taper in the mold walls from 4. 56% to 3.
沙卫星   +5 more
doaj   +1 more source

Practice of Steel 18CrNiMo7-6 Bloom by Process of 120 t BOF-LF-RH-410 mm x 530 mm Continuous Casting

open access: yesTeshugang, 2019
The steel grade 18CrNiMo7-6 with diameter of Φ115 ~250 nun round from process route of hot metal + scrap-120 t BOF-RH- 410 mm x530 mm continuous casting-bloom heating by walking forward heating fumace-750 rolling¬annealing. Its chemical composition is (/%
李博鹏   +6 more
doaj   +1 more source

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