Results 81 to 90 of about 4,788 (225)

A response surface methodology and desirability approach for predictive modeling and optimization of cutting temperature in machining hardened steel [PDF]

open access: yes, 2014
This paper presents an experimental investigation on cutting temperature during hard turning of EN 24 steel (50 HRC) using TiN coated carbide insert under dry environment.
Ashok Kumar Sahoo, Purna Chandra Mishra
core   +1 more source

A review of the latest developments regarding the heat treatment effects on hardness, impact toughness, and microstructure in AISI 1040, 4140, and 4340 medium carbon structural steels

open access: yesDiscover Materials
This review compiles and compares recent research on the influence of various heat treatments on the hardness, impact toughness, and microstructural evolution of AISI 1040, 4140, and 4340 medium carbon structural steels.
Sharan Mudda   +4 more
doaj   +1 more source

Thermal Stability and Lubrication Properties of Biodegradable Castor Oil on AISI 4140 Steel

open access: yesMetals, 2018
Lubricants have much importance in several industries, principally serving to reduce friction and wear in mechanical elements. In this study, the influence of Castor oil as bio-lubricant on the friction and wear performance of AISI 4140 steel was ...
María Teresa Hernández-Sierra   +4 more
doaj   +1 more source

Characterization of steel 70XL used in the manufacture of balls for the clinker's milling

open access: yesMinería y Geología, 2017
The present article deals with the wear of the balls used for the grinding of the clinker in the processes of obtaining cement. Three specimens of different steel were made: one of steel AISI 4140, with which balls are forged for the milling process ...
Eider Gresesqui-Lobaina   +2 more
doaj  

Metallurgical and Mechanical Examination of Fatigue-Induced Fracture in a Conveyor Drum Shaft [PDF]

open access: yesMaterials Research
This work investigates the fatigue failure mode of a shaft used in a conveyor system for mining applications through visual inspection, metallographic examination, fracture analysis, and mechanical testing. It was observed that a misalignment of about 5°
Anderson Luiz de Oliveira   +10 more
doaj   +1 more source

Pràctica de laboratori : assaig Jominy [PDF]

open access: yes, 2007
El projecte consisteix en realitzar una pràctica de laboratori pels alumnes d'Enginyeria de Materials. La pràctica de laboratori consisteix en posar en pràctica l'assaig Jominy. Aquest assaig permet conèixer la trempabilitat dels acers.
Concustell i Fargas, Amadeu   +3 more
core  

Tribological Analysis of Laser-Cladded Martensitic and Mixed-Alloy Coatings: Correlating Microstructure, Hardness, and Wear Response

open access: yesJournal of Manufacturing and Materials Processing
High-strength quenched and tempered steels such as EN 42CrMo4, widely used for marine shaft applications due to their high strength, toughness, and fatigue resistance, are nevertheless susceptible to surface degradation under severe dry sliding ...
Stavros K. Chionopoulos   +1 more
doaj   +1 more source

Effect of Magnetic Field Coupled Deep Cryogenic Treatment on Wear Resistance of AISI 4140 Steel

open access: yesAdvances in Materials Science and Engineering, 2020
In this study, a new magnetic field coupled deep cryogenic treatment (MDCT) is developed and its effect on wear resistance of AISI 4140 steel is investigated.
Liang Tang   +4 more
doaj   +1 more source

EFFECT OF ION NITRIDING ON FATIGUE BEHAVIOR OF STEEL 35HGS [PDF]

open access: yes, 2019
В тази статия е изследвано поведението на умора на образци от 35HGS ниско легирана стомана. Направен е сравнителен анализ за ефекта от процеса на втвърдяване с последващо смилане и йонно азотиране. За целта са произведени пет групи екземпляри.
Atanasov M., Dunchev V., Čapek J.
core  

Influence of base plate preheating temperature on fatigue strength of AISI 4140 manufactured by laser powder bed fusion

open access: yesJournal of Materials Research and Technology
This study investigates the influence of base plate preheating temperature on the fatigue performance of additively manufactured AISI 4140 steel, manufactured through laser powder bed fusion (PBF-LB). By varying preheating temperatures (150°C, 300°C, and
Philipp Schüßler   +6 more
doaj   +1 more source

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