Results 21 to 30 of about 38,367 (266)

Effect of Post-Heat Treatment on the AISI M4 Layer Deposited by Directed Energy Deposition

open access: yesMetals, 2020
Currently, high-speed steel (HSS) powders are deposited locally on a metal surface through direct energy deposition (DED) onto hardface tool steel. Although the HSS powder enhances the hardness and the abrasion resistance of a metal surface, it makes the
Gyeong Yun Baek   +3 more
doaj   +1 more source

Development of a fretting-fatigue mapping concept: The effect of material properties and surface treatments [PDF]

open access: yes, 2009
Fretting-fatigue induced by combined localized cyclic contact motion and external bulk fatigue loadings may result in premature and dramatic failure of the contacting components.
Araújo   +32 more
core   +1 more source

Se Nanopowder Conversion into Lubricious 2D Selenide Layers by Tribochemical Reactions

open access: yesAdvanced Materials, Volume 35, Issue 42, October 19, 2023., 2023
A simple sprinkling of Se nanopowders onto sliding Mo and W thin films leads to the tribochemical in operando formation of lubricious 2D selenides. Due to the thermal and vacuum stability of the Se nanopowders they can be used to replenish sliding components with solid lubricants, avoiding the long‐lasting problem of transition metal ...
Philipp G. Grützmacher   +11 more
wiley   +1 more source

Mechanical Properties and Microstructure Characterization of AISI “D2” and “O1” Cold Work Tool Steels

open access: yesMetals, 2019
This research analyzes the mechanical properties and fracture behavior of two cold work tool steels: AISI “D2” and “O1”. Tool steels are an economical and efficient solution for manufacturers due to their superior mechanical ...
Mohammed Algarni
doaj   +1 more source

Vine Shoots‐Derived Hard Carbons as Anodes for Sodium‐Ion Batteries: Role of Annealing Temperature in Regulating Their Structure and Morphology

open access: yesBatteries &Supercaps, Volume 6, Issue 10, October 2023., 2023
Temperature matters. Despite the large number of publications available, a lack of consensus still exists on the effect of the carbonization temperature on the textural and structural features of biomass‐derived carbons. In this respect, an exhaustive physicochemical and electrochemical characterization is reported here, from which relevant insights on
Darío Alvira   +4 more
wiley   +1 more source

An investigation on machinability of AISI D2 steel during hard milling with multi-resolution analysis of vibration

open access: yesEngineering Research Express, 2023
Vibration is a major concern in hard milling process as it adversely affects productivity, surface finish, tool wear, energy consumption, etc. The aim of this paper is to investigate the effects of cutting parameters on acceleration of vibration ...
Arghya Chattopadhyay   +2 more
semanticscholar   +1 more source

Vpliv podhlajevanja na lomno žilavost martenzitnega nerjavečega jekla AISI 420 [PDF]

open access: yes, 2017
Cryogenic treatments have been employed over the last three decades in both tool and high-alloy steels to improve wear resistance, mainly through the transformation of retained austenite and the precipitation of fine carbides.
Perez Ipiña, Juan Elias   +2 more
core   +1 more source

Proceedings of the Sustainable Concrete Materials and Structures in Construction 2020 [PDF]

open access: yes, 2020
Seminar on Sustainable Concrete Materials and Structures in Concrete Construction 2020 was held virtually for the first time on 24 August 2020. This event was organized by the Faculty of Civil Engineering and Built Environment (FKAAB), Universiti Tun ...
Mohd Zuki, Sharifah Salwa   +3 more
core   +1 more source

Influence of hard phase size and spacing on the fatigue crack propagation in tool steels—Numerical simulation and experimental validation

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 46, Issue 10, Page 3872-3891, October 2023., 2023
Abstract In this study, the fatigue crack growth rate in four different tool steel microstructures (hot rolled, powdermetallurgically processed, as‐cast, and carbide‐free) is experimentally measured and correlated with hard phase size and spacing, as well as with the roughness of the fracture surface that is created by crack kinking.
Lukas Brackmann   +4 more
wiley   +1 more source

Tribological effects of micromilling of hardened AISI D2 steel on tool wear and top burr formation

open access: yesThe International Journal of Advanced Manufacturing Technology, 2023
The study of micromilling of quenched and tempered AISI D2 steel is of utmost importance due to the accelerated wear of the micromilling cutting tool edge that intensifies the formation of top burrs, which is detrimental to the micromilled surfaces ...
Anderson Júnior dos Santos   +6 more
semanticscholar   +1 more source

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