Results 141 to 150 of about 468 (181)

Influence of Complementary Machining on fatigue strength of AISI 4140

CIRP Annals, 2018
Abstract Mechanical surface treatment is an additional process step in the process chain of part manufacturing to enhance performance but increasing production time and costs. Hence, different hybrid processes have been developed including Complementary Machining, which does not need a complex tool.
Michael Gerstenmeyer, Frederik Zanger, Volker Schulze   +2 more
openaire   +2 more sources

Variation of the magnetic properties of AISI 4140 steels with plastic strain

Physica Status Solidi (a), 1988
The magnetic properties of five different microstructures of AISI 4140 steel are measured as a function of compressive plastic deformation. Coercivity, hysteresis loss, remanence, permeability, differential permeability, and anhysteretic magnetisation are determined for strains of up to 10%.
openaire   +1 more source

EXPERIMENTAL INVESTIGATİON OF DYNAMIC FRICTION COEFFICIENT OF AISI 1040 AND AISI 4140 STEELS

2023
A detailed study of the frictional behaviour of AISI 1040 and AISI 4140 steels, which are widely used in various engineering applications, is important for improving the performance of machines and optimising their durability. In this study, the factors affecting sliding friction and dynamic friction coefficients of steel materials are reviewed in the ...
DUMAN, Netice, SELÇUK, Burhan
openaire   +1 more source

Microstructure-Sensitive Fatigue Modeling of AISI 4140 Steel

Journal of Engineering Materials and Technology, 2014
A microstructure-based fatigue model is employed to predict fatigue damage in 4140 steel. Fully reversed, strain control fatigue tests were conducted at various strain amplitudes and scanning electron microscopy was employed to establish structure-property relations between the microstructure and cyclic damage.
J. B. Jordon, M. F. Horstemeyer
openaire   +1 more source

Characterization of Friction Welding for IN713LC and AISI 4140 Steel

Materials Science Forum, 2004
Friction welding of dissimilar materials, Ni-base superalloy IN713LC and oil-quench plus tempered AISI 4140 steel, was investigated. Friction welding was carried out with various process variables such as friction pressure and time. The quality of welded joints was tested by applying bending stresses in an appropriate jig.
Jong Taek Yeom, J.H. Park, J.W. Lee, Nho Kwang Park   +3 more
openaire   +1 more source

Modeling of austenite decomposition in an AISI 4140 steel

2009
The final mechanical properties and also the distribution of residual stresses in a heat treated product, depend upon the various microstructural constituents. In heat treatment operations, in order to predict the final properties, it has become increasingly important to be able to predict the final microstructure distribution for a given thermal ...
openaire   +1 more source

Tribological Characteristics of Duplex Treated AISI 4140 Steel

2000
In the present study samples of AISI 4140 steel pre-treated by plasma nitriding and coated by a hydrogen-free hard carbon film were investigated with respect to microhardness, surface roughness, residual stress, scratch adhesion and dry sliding wear resistance.
Podgornik, Bojan, Vizintin, Jose, Ronkainen, Helena, Holmberg, Kenneth   +4 more
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Crack Arrest Toughness of Two High Strength Steels (AISI 4140 and AISI 4340)

Metallurgical Transactions A, 1982
The crack initiation toughness (K c ) and crack arrest toughness (K a ) of AISI 4140 and AISI 4340 steel were measured over a range of yield strengths from 965 to 1240 MPa, and a range of test temperatures from -53 to +74°C. Emphasis was placed onK a testing since these values are thought to represent the minimum toughness of the steel as a function of
E. J. Ripling, J. H. Mulherin, P. B. Crosley   +2 more
openaire   +1 more source

Comparative studies on GTA and PCGTA weldments of AISI 4140 and AISI 316 dissimilar metals

International Journal of Microstructure and Materials Properties, 2013
In this study, an attempt has been made to investigate the weldability, mechanical properties of dissimilar weldments of AISI 4140 and AISI 316. These dissimilar metals were welded using gas tungsten arc welding (GTAW) and Pulsed Current GTAW (PCGTAW) employing ER309L filler wire.
Madduru Phanindra Reddy, M. Mohan Prashanth, A. Aldrin Sam William, M. Arivarasu, K. Devendranath Ramkumar, N. Arivazhagan, S. Narayanan   +6 more
openaire   +1 more source

Adhesion behaviour of borided AISI 4140 steel

Surface Engineering, 2022
R. Márquez-Cortés, J. Martínez-Trinidad, R. A. García-León   +2 more
openaire   +1 more source