Results 131 to 140 of about 468 (181)
A Review of Methods for Increasing the Durability of Hot Forging Tools. [PDF]
Materials (Basel)Turek J, Cieślik J.
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Optimization of Tribological Properties of Shot-Peened Surfaces via Multi-Criteria Decision-Making Using TOPSIS and GRA. [PDF]
Materials (Basel)Dzierwa A, Miturska-Barańska I.
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Assessment of Mechanical Properties of AISI 4140 and AISI 316 Dissimilar Weldments
Procedia Engineering, 2014 AbstractBimetallic joints of low alloy steel and stainless steel are widely used in high temperature corrosive environments. In the present investigation, an attempt has been made to investigate the weldability of AISI 4140 and AISI 316 by Gas Tungsten Arc Welding (GTAW) process with and without filler metal. The filler metal employed for joining these
N Arivazhagan, K Devendranath Ramkumar
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Wear, 1987
Abstract The erosion behavior of AISI 4140 steel under various heat treatment conditions was investigated. A variety of microstructures, such as the primary and tempered martensites, varying proportions of martensite and bainite, cementite spheroids embedded in a ferrite matrix and ferrite and pearlite were obtained.
L. Ambrosini, S. Bahadur
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Abstract The erosion behavior of AISI 4140 steel under various heat treatment conditions was investigated. A variety of microstructures, such as the primary and tempered martensites, varying proportions of martensite and bainite, cementite spheroids embedded in a ferrite matrix and ferrite and pearlite were obtained.
L. Ambrosini, S. Bahadur
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Corrosion Behaviour of Electron Beam Welded AISI 304 and AISI 4140
Advanced Materials Research, 2011In the present work hot corrosion studies were carried out on electron beam welded AISI 304 and AISI 4140 dissimilar weldment in molten salt (K2SO4-60% NaCl) environment at 800 °C for 50 cycles. The weight gain follows parabolic law in all the cases. It is observed that the scale formation was maximum on 4140 side as compared on 304 side.
N. Arivazhagan +4 more
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Surface Engineering, 2019
Wear behaviour of the AISI 4140 steel specimens with various surface conditions was tested against the DLC-coated boronized disc of AISI 4140 steel. Specific wear rate and coefficient of friction (COF) of the as-boronized (AB) pins at 100 and 150 N loads were substantially lower than the boronized–polished (B-P) pins.
Aditya K. Litoria +5 more
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Wear behaviour of the AISI 4140 steel specimens with various surface conditions was tested against the DLC-coated boronized disc of AISI 4140 steel. Specific wear rate and coefficient of friction (COF) of the as-boronized (AB) pins at 100 and 150 N loads were substantially lower than the boronized–polished (B-P) pins.
Aditya K. Litoria +5 more
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Alloy Digest, 1988
Abstract AISI 4140 is a through-hardening chromium-molybdenum medium carbon steel. It is not subject to temper embrittlement. It is recommended for heavy duty service. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness.
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Abstract AISI 4140 is a through-hardening chromium-molybdenum medium carbon steel. It is not subject to temper embrittlement. It is recommended for heavy duty service. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness.
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Erosion of heat-treated AISI 4140 steel
Materials Science and Engineering: A, 1993Solid-particle erosion was studied on AISI 4140 steel heat treated to have a Vickers hardness (Hv) of 288–650 kg mm−2. The experiments were conducted in vacuum with 143 μm Al2O3 abrasive impacting at 50–100 m s−1 at an angle of 30° or 90°. Erosion rates were nearly independent of hardness for Hv ⩽ 365 kg mm−2, but increased with hardness for Hv > 365 ...
K.C. Goretta +2 more
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Tribocorrosion behavior of boronized AISI 4140 steel
Surface and Coatings Technology, 2018Abstract In this study, AISI 4140 steel was boronized using powder-pack‑boronizing process, seeking to produce a monophasic iron boride (Fe2B) layer. The microstructural and chemical characteristics were evaluated by Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), respectively and Grazing incidence X-ray diffraction (GIXRD).
Steffen Alexandre da Costa Aichholz +3 more
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Selective laser melting of AISI 4140 steel
2021This thesis focused on investigating the microstructure and mechanical properties of Selective Laser Melting (SLM) manufactured AISI 4140 steel under a range of in-situ heat loading conditions. In the SLM process, the process parameters determine the basic performance and microstructure of an as-built object.
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