Results 31 to 40 of about 172 (141)
Gradient microstructure and microhardness in a nitrided 18CrNiMo7-6 gear steel [PDF]
IOP Conference Series: Materials Science and Engineering, 2017 A commercial gear steel (18CrNiMo7-6) containing a tempered martensite structure was nitrided using a pressurized gas nitriding process under a pressure of 5 atm at 530 °C for 5 hours. The mechanical properties and microstructure of the nitrided sample were characterized by Vickers hardness measurements, X-ray diffraction, and backscatter electron ...
Yang, R. +4 more
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Impact of a Multi-step Heat Treatment on Different Manufacturing Routes of 18CrNiMo7-6 Steel [PDF]
Metallurgical and Materials Transactions A, 2020 Abstract Effect of an optimized multi-step heat treatment routine on conventional (machining from wrought bar stock) and alternate manufacturing routes (hot forging and cold rotary forging) for producing flat cylindrical-shaped machine drive components from 18CrNiMo7-6 steel was investigated.
Mandal, Paranjayee +3 more
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Investigation on Failure Parameters of J-C Damage Model of 18CrNiMo7-6 Alloy Steel [PDF]
Zhengzhou Daxue xuebao. Gongxue ban, 2023 In this study, three series of mechanical tests were carried out on 18CrNiMo7-6 alloy steel materials to determine the damage parameters of the Johnson-Cook (J-C) damage model, which could be widely used in numerical simulations such as high-speed impact
WU Shaoyang +4 more
doaj +1 more source
BANDED MICROSTRUCTURE IN FORGED 18CrNiMo7-6 STEEL
Metallurgy and Foundry Engineering, 2009 18CrNiMo7-6 steel, after hot forging, exhibits a distinct banding of ferritic-pearlitic microstructure, probably related to the segregation of alloying elements during the ingot crystallization. The heat treatment allowing to obtain bainitic microstructure in this steel is described in the paper. The obtained bainitic microstructure exhibits only
Janusz Krawczyk +2 more
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Metals, 2020 Abrasive waterjet peening (AWJP) as an important surface strengthening method can effectively improve surface properties. In this study, after multiple AWJP, the distribution of compressive residual stress and roughness on the surface of 18CrNiMo7-6 ...
Yun Zou +5 more
doaj +1 more source
MATEC Web of Conferences, 2018 The present study is conducted with a dual-aim; firstly, examine the effect of several single shot peening conditions on the subsurface layer properties and fatigue performance of the case-hardened 18CrNiMo7-6 steel.
Ho Hsin Shen +4 more
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A mathematical model for the cylindrical grinding responses of 18CrNiMo7-6 alloy steel
, 2023 Abstract Due to its exceptional mechanical properties, 18CrNiMo7-6 alloy steel is one of the preferred materials for producing critical components of high-speed heavy-duty gearboxes. To study the relationship between cylindrical grinding parameters, i.e., workpiece speed, wheel speed and grinding depth, and grinding responses (grinding force ...
Jianwei Zhang +6 more
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The Synchrotron Radiation for Steel Research
Advances in Materials Science and Engineering, Volume 2016, Issue 1, 2016., 2016 The synchrotron X‐ray radiation is a great tool in materials characterization with several advantageous features. The high intensity allows clear interaction signals and high energy of X‐ray yields higher sampling volume. The samples do not need extra preparation and the microstructure is therefore not affected. With the tunability of the X‐ray energy,
Piyada Suwanpinij, Hongchao Kou
wiley +1 more source
Journal of Materials Research and Technology, 2021 A surface-modified layer (SML) can play an important role in the durability and in-service behavior of key components, but characterization of the mechanical properties of SML is complex.
GuangTao Xu +4 more
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Attaining Ultra-Smooth 18CrNiMo7-6 Case Hardening Steel Surfaces with Chemical Mechanical Polishing
Lubricants, 2022 Smooth surfaces are conducive to improving the lubrication of gears in mechanical systems. In this study, chemical mechanical polishing (CMP) was used to process 18CrNiMo7-6 case hardening steel, a typical material for gears.
Wumao Peng +4 more
doaj +1 more source