Results 51 to 60 of about 622 (185)

Toplinske deformacije u postupcima toplinske obrade metala [PDF]

open access: yes, 2011
Toplinska naprezanja nastaju u svim postupcima toplinske obrade metala kod kojih metali pokazuju osjetljivost na distribuciju topline prilikom ugrijavanja isto kao i kod hlađenja.
Andrić, Ivana
core  

Crack Growth Simulation on Autofrettaged and Not Autofrettaged Cross Borings on the Basis of Linear Elastic Fracture Mechanics [PDF]

open access: yes, 2009
Die betriebsfeste Auslegung von Hochdruckbauteilen ist technisch-wirtschaftlich notwendig. In dieser Arbeit werden die wissenschaftlichen Grundlagen dafür erarbeitet.
Thumser, Rayk
core   +4 more sources

提高高速重载机车齿轮材料质量的途径

open access: yesJixie chuandong, 2012
As for the driving device requirements in the high speed and heavy duty locomotive,influence of various factors on 18CrNiMo7-6 material properties is analyzed.Some suggestions and measures for increasing the properties of casting and forging are obtained.
张祥儒   +4 more
doaj  

Evolution of friction and wear in rack-railway gear–rack pairs under heavy-load dry sliding conditions

open access: yesAIP Advances
Rack 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
doaj   +1 more source

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.
Yu Wenchao, Xie Dirong, Shi Jie, Wang Maoqiu
doaj   +3 more sources

A mathematical model for the cylindrical grinding responses of 18CrNiMo7-6 alloy steel

open access: yes, 2023
Abstract Due to its exceptional mechanical properties, 18CrNiMo7-6 alloy steel is one of the preferred materials for producing critical components of high-speed heavy-duty gearboxes. To study the relationship between cylindrical grinding parameters, i.e., workpiece speed, wheel speed and grinding depth, and grinding responses (grinding force ...
Jianwei Zhang   +6 more
openaire   +1 more source

Effect of Normalized Cooling Rate on Structure and Hardness of Gear Steel 18CrNiMo7-6

open access: yesTeshugang, 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
doaj  

Influence of Tempering and Cryogenic Treatment on Retained Austenite and Residual Stresses in Carbonitrided 18CrNiMo7-6 Low Alloy Steel [PDF]

open access: yes, 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.
core   +1 more source

In-situ Observation of Retained Austenite and Residual Stress Evolutions during Tempering of carbonitrided DIN 1.6587 Alloy Steel [PDF]

open access: yes, 2022
This paper investigates the evolution of retained austenite and residual stresses during and after tempering of carbonitrided 18CrNiMo7-6 low alloy steel carried out using in-situ X-ray diffraction technique.
Epp, Jérémy, Katemi, Richard J.
core   +1 more source

Journal bearing status identification with acoustic emission measurements and data clustering [PDF]

open access: yes
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
core   +2 more sources

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