Results 11 to 20 of about 45,924 (218)

Improvement of Strength and Oxidation Resistance at High Temperature in AISI 4140 Steel by Micro-Alloying Chromium and Tungsten for Automotive Engine Applications [PDF]

Archives of Metallurgy and Materials
Increasing the operating temperature and pressure of an automotive engine and reducing its weight can improve fuel efficiency and lower carbon dioxide emissions.
Hyo-Seong Kim, Moonseok Kang, Minha Park, Byung Jun Kim, Byoungkoo Kim, Yong-Sik Ahn   +5 more
doaj   +2 more sources

Effect of the impact angles on the erosion wear resistance of borided AISI 4140 steel

Results in Engineering
This study evaluates the erosive wear resistance of untreated AISI 4140 steel, borided AISI 4140 steel, and borided AISI 4140 steel subjected to diffusion annealing (DAP). Dual-phase FeB/Fe₂B and single-phase Fe₂B layers were obtained with thicknesses of
J. Martínez-Trinidad, R. Márquez-Cortés, L.A. Moreno-Pacheco, F. Alonso-Cruz, W.D. Wong-Ángel, R.A. García-León   +5 more
doaj   +2 more sources

On the Strain Hardening and Tensile Properties of AISI 4140 Steel via Single‐Step Quenching and Partitioning Treatments

steel research international, Volume 96, Issue 2, February 2025.
Single‐step quenching and partitioning treatments applied on commercial AISI 4140 steel result in an ultimate tensile strength above 2000 MPa and up to 10% elongation, which represents a significant improvement compared to quenched and tempered conditions.
Marco Belfi, Silvia Barella, Andrea Gruttadauria, Joao T. O. Menezes, Enrique Castrodeza, Caiyi Liu, Yan Peng, Alessandro Torboli, Carlo Mapelli, Marawan Abdelwahed   +9 more
wiley   +2 more sources

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

Journal 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, Benjamin Dollhofer, Christian Krämer, Lukas Englert, Frauke Hinrichs, Volker Schulze, Stefan Dietrich   +6 more
doaj   +2 more sources

Effect of various heat treatment methods and optimization of their parameters on mechanical properties of AISI 4140 steel. [PDF]

Sci Rep
AISI 4140 steel is one of the important category in the steels with wide range of applications including but not limited to automotive, general machinery, oil and gas industry.
Mudda S, Hegde A, Sharma S, Gurumurthy BM, Shettar M, Gowrishankar MC.   +5 more
europepmc   +2 more sources

Decarburization and Its Effects on the Properties of Plasma-Nitrided AISI 4140 Steel: A Review. [PDF]

Materials (Basel)
Despite the surge in plasma nitriding research, few reviews thoroughly examine how surface decarburization—occurring both before and during the treatment—affects AISI 4140 and similar steel grades.
Stojanović Ž, Gligorijević B, Prvulović S, But A, Svoboda P, Piteľ J, Vencl A.   +6 more
europepmc   +2 more sources

Effect of Microstructure and Compressive Residual Stress on the Fatigue Performance of AISI 4140 Steel with QPQ Salt-Bath Nitro-Carburizing. [PDF]

Materials (Basel)
Quench–polish–quench (QPQ) nitro-carburizing of AISI 4140 steel in a salt bath was performed in this study. Nitro-carburizing in a salt bath enhanced the formation of Fe-nitride on the outer surface layer.
Chen H, Chen TC, Hsu HH, Tsay LW.
europepmc   +2 more sources

Investigation on Surface Integrity in Hard Turning of AISI 4140 Steel with SPPP-AlTiSiN Coated Carbide Insert under Nano-MQL

Lubricants, 2023
The machined surface integrity in the turning of hardened steels is adversely influenced by heat generation and friction which requires pacification of the temperature by the effective cooling-lubrication approach and cutting tool performance.
Smita Padhan, Naresh Kumar Wagri, L. Dash, Anshuman Das, Sudhansu Ranjan Das, Mohammad Rafighi, Priyaranjan Sharma   +6 more
semanticscholar   +1 more source

A Comprehensive Analysis of Surface Roughness, Vibration, and Acoustic Emissions Based on Machine Learning during Hard Turning of AISI 4140 Steel

Metals, 2023
Industrial materials are materials used in the manufacture of products such as durable machines and equipment. For this reason, industrial materials have importance in many aspects of human life, including social, environmental, and technological ...
I. Asiltürk, Mustafa Kuntoğlu, Rüstem Binali, H. Akkuş, E. Salur   +4 more
semanticscholar   +1 more source

Investigation of Plane-Strain Fracture Toughness and Failure Analysis of AISI-4140 Alloy Steel

Engineering Proceedings, 2023
AISI-4140 alloy steel is a widely used a material in various fields of engineering like automotive, aerospace, oil and gas industries, construction, and structural engineering.
Y. S. Upadhyaya, Rutuja Balaji Kottawar, Narahari Suresh Patil, Vishwanath Managuli   +3 more
doaj   +1 more source