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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

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

Comparative Study of Conventional and Microwave-Assisted Boriding of AISI 1040 and AISI 4140 Steels

Tehnički Glasnik, 2023
In this study, AISI 1040 and AISI 4140 steels were boriding using Ekabor-II commercial boriding powder with powder-pack boriding method using microwave and conventional heating methods.
Safiye İpek Ayvaz, Emre Özer
doaj   +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

Experimental investigation of SC108 clamping components hardening parameter based on AISI 4140 steel to distortion minimization

Cogent Engineering, 2023
This research discusses the machine component distortion problem after the hardening process. This research focuses on the inside diameter of the hole and gap width dimension changes in components.
Kristian Ismartaya, Roberts Purnomo, Baju Bawono, Paulus Wisnu Anggoro   +3 more
doaj   +1 more source

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

Analisa Keseragaman Distribusi Kekerasan Material AISI 4140 pada Produk Coran Crusher Tip.

JTRM, 2023
Crusher Tip merupakan salah satu komponen dalam mesin shredder yang memiliki fungsi utama sebagai penghancur batuan yang ditambang sebagai bahan baku semen.
Reza Yadi Hidayat, Achmad Sambas, Epan Abdulah   +2 more
doaj   +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