Results 51 to 60 of about 9,793 (228)
steel research international, EarlyView.This work demonstrates that replacing Ti with Nb in maraging steel forms nanoscale Nb–Mo particles along boundaries, strengthening the alloy without relying on Ti phases. Heat‐treatment tuning promotes uniform crystal orientation and balanced grain boundaries, enabling strong yet ductile behavior.
Mohamad Masoumi +14 more
wiley +1 more source
Calculation of sub-surface-initiated fatigue fractures in gears [PDF]
, 2019 Power-transmitting gears are typically heat-treated, most often case-hardened, to improve the fatigue strength and therefore to ensure higher fatigue life.
Müller, Daniel +2 more
core
steel research international, EarlyView.This study uses in situ synchrotron X‐ray diffraction at the German Electron Synchrotron to analyze low‐pressure carburizing (LPC) in steels. The findings reveal surface carbon saturation and carbide formation kinetics, and phase‐specific stress development during quenching. The results show carbide kinetics depend on steel grade and size, while stress
Ogün Baris Tapar +6 more
wiley +1 more source
Finish machining of hardened gears wheels using cubic boron nitride (CBN) inserts
Metalurgija, 2012 The paper presents some results of investigation of finish machining of hardened bearing surfaces of cylindrical gear wheels. Finish machining has been performed with wedges of defined geometry made of CBN. The presented investigation results are related
R. Talar, A. Stoić
doaj
Journal of Mechanical Engineering, 2023 The paper considers scientific principles of technological procedure development for the selection and assignment of parameters of velocity machining by blade tool at gear milling with due regard to the required parameters of the gear surface layer ...
Klochko Alexander +8 more
doaj +1 more source
The linear boom actuator designed for the Galileo spacecraft [PDF]
, 1983 Because the linear boom actuator is to be used on a flight spacecraft, as opposed to a ground based application, there is a comprehensive set of requirements. First, of course, the actuator must be capable of positioning and holding the load.
Koch, E. F.
core +1 more source
Structural Concrete, EarlyView.Abstract An analytical framework suited for the analysis of shear‐critical ultra‐high performance concrete (UHPC) members is presented. The numerical methodology utilizes a nonlinear finite element analysis formulation integrated with an artificial neural network (ANN) that characterizes the UHPC tension response based on its mix design. In addition, a
Amjad Diab, Anca Ferche
wiley +1 more source
Collaborating in future states—Contextual instability, paradigmatic remaking, and public policy
Australian Journal of Public Administration, EarlyView.Abstract Collaboration is ubiquitous in public policy life, with its presence and profile determined by prevailing governance conditions. Commitments to globalisation and marketisation in the latter part of the 20th century marked the onset of an era defined by collaboration, between and across tiers and spheres of government, with non‐state actors ...
Helen Sullivan
wiley +1 more source
Techniques and Equipment Types to Harden Gears
Heat Treating Conference, 2021 Abstract This paper compares and contrasts heat treat processes and equipment typically used to harden gears. It discusses the basic design and operation of vacuum, controlled atmosphere, and hybrid furnaces and process techniques such as carburizing, carbonitriding, nitriding, nitrocarburizing, and neutral hardening.
openaire +1 more source
Effect of two synthetic lubricants on life of AISI 9310 spur gears [PDF]
Spur-gear fatigue tests were conducted with two lubricants using a single lot of consumable-electrode vacuum-melted (CVM) AISI 9310 spur gears. The gears were case carburized and hardened to Rockwell C60. The gear pitch diameter was 8.89 cm.
Shimski, John, Townsend, Dennis P.
core +1 more source