Results 21 to 30 of about 5,815 (226)

EFFECT OF TIME ON THE COMPOUND LAYER FORMED DURING SALT BATH NITRIDING OF AISI 4140 STEEL

open access: yesActa Metallurgica Slovaca, 2018
This research was carried out to study the effect of time on the compound layer of AISI 4140 steel in salt bath nitriding. The nitriding process were implemented on AISI 4140 steel in salt bath component for different times (from 1 h to 10 h) at 580 °C ...
Elhadj Ghelloudj   +2 more
doaj   +1 more source

Water quenching cracking mechanism and prevention of steels

open access: yesHeat Treatment and Surface Engineering, 2023
Quenching is often an essential step in heat treatment of steels for enhancing strength. Water quenching which is low cost and free of pollution risk instead of oil quenching or polymer aqueous solution quenching which is high cost and has high pollution
Hongqing Zheng   +5 more
doaj   +1 more source

Cooling Intensity of Inverse Solubility Polyalkylene Glykol Polymers and Some Results of Investigations Focused on Minimizing Distortion of Metal Components [PDF]

open access: yes, 2017
Poly(Alkylene Glycol) polymers of inverse solubility (PAG) provide ideal uniform cooling for minimizing distortion and preventing crack formation during hardening machine components and tools.
Kobasko, N. (Nikolai)
core   +2 more sources

Derin Kriyojenik İşlemin Farklı Bekletme Sürelerinin AISI 4140 (42CrMo4) Çeliğin Mekanik Özelliklerine Etkisi

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2018
Bu çalışmada, özellikle otomotiv endüstrisinde yaygın olarak kullanılan AISI 4140 (42CrMo4) çeliğinin mekanik özellikleri üzerinde farklı bekletme süreli derin kriyojenik işlemin etkisi incelenmiştir. Bu amaçla hazırlanan AISI 4140 çeliğinden imal edilen
Menderes KAM, Hamit Saruhan
doaj   +4 more sources

On the Influence of Tribological Properties of AISI 4140 Annealed Steel against Ceramic Counterparts under Dry and Lubricated Conditions and Their Effect on Steel Microstructure

open access: yesMetals, 2021
AISI 4140 steel is still one of the most distinguished steels employed in tribological applications because of its low cost, great mechanical properties, and appropriate wear resistance.
Luis D. Aguilera-Camacho   +3 more
doaj   +1 more source

Effects of Thiobacillus Ferrooxidans on corrosion of AISI 4140 Steel in presence of oil biodiesel

open access: yesInternational Journal of Electrochemical Science, 2014
In this paper we study the behavior of microbiologically induced corrosion by means of specie Thiobacillus ferrooxidans on AISI 4140 Alloy Steel with chromium and molybdenum high hardenability and good fatigue resistance, abrasion and impact influenced ...
E. Ruiz, W. Aperador, A. Mejia
doaj   +1 more source

Effect of austempering conditions on the microstructure and mechanical properties of AISI 4340 and AISI 4140 steels

open access: yesJournal of Materials Research and Technology, 2019
AISI 4340 and AISI 4140 are normally used for different structural applications in quenched and tempered state due to their high strength, high abrasion and fatigue resistance but they lack toughness. Presence of dual phase microstructure such as ferrite-
Mian Muhammad Bilal   +6 more
doaj   +1 more source

Influence of the constitutive flow law in FEM simulation of the Radial forging process [PDF]

open access: yes, 2013
Radial forging is a widely used forming process for manufacturing hollow products in transport industry. As the deformation of the workpiece, during the process, is a consequence of a large number of high-speed strokes, the Johnson-Cook constitutive law (
Gueye, Babacar, Pantalé, Olivier
core   +7 more sources

The Effects of Shallow Cryogenic Process On The Mechanical Properties of AISI 4140 Steel

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi, 2018
In this study, shallow cryogenic treatments were carried out for various holding time to AISI 4140 steel and the effects of heat treatment parameters on wear behavior, impact strength and tensile strength were investigated. Three different holding times
Eşref KIZILKAYA, İsmail OVALI
doaj   +1 more source

On the comparative cutting performance of nature inspired structured cutting tool in dry cutting of AISI/SAE 4140 [PDF]

open access: yes, 2015
In this study, femtosecond laser was used to create micro-structures on the flank face of a cutting tool. For the first time, a nature-inspired design (shape) of structure was created and explored.
Anis Fatima, Han X, Paul T Mativenga
core   +1 more source

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