Results 21 to 30 of about 1,452,147 (241)

Parametric behaviour optimisation of macro and micro hardness for heat treated Al 6061-red mud composite

open access: yesJournal of Materials Research and Technology, 2019
Composite with aluminium 6061 matrix using red mud reinforcement to reduce the cost have been fabricated by stir casting method. A stirring arrangement has been used to ensure the uniform distribution. Scanning electron microscopy has been used to verify
Narender Panwar, Amit Chauhan
doaj   +1 more source

Optimization of Micro-Alloying Elements for Mechanical Properties in Normalized Cast Steel Using Taguchi Technique

open access: yesArchives of Foundry Engineering, 2017
In this study, Taguchi method is used to find out the effect of micro alloying elements like vanadium, niobium and titanium on the hardness and tensile strength of the normalized cast steel.
Chokkalingam B.   +4 more
doaj   +1 more source

Micro Drilling of Single Crystal SiC Using Polycrystalline Diamond Tool [PDF]

open access: yes한국정밀공학회지, 2021
Silicon carbide (SiC) has been used as a material for semi-conductor, molds, and micro-electro-mechanical systems (MEMS) because of its superior thermal, electrical, and mechanical properties.
Ui Seok Lee   +3 more
doaj   +1 more source

On the Load Dependence of Micro-Hardness Measurements: Analysis of Data by Different Models and Evaluation of Measurement Errors

open access: yesArchives of Metallurgy and Materials, 2016
The influence of applied loads between 0.09807 N and 0.9807 N on measured values of micro-hardness was evaluated by Meyer’s index n, proportional specimen resistance model (PSR) and Hays – Kendall methods, Total Dispersion Zone and Analysis of Variance ...
Petrík J.
doaj   +1 more source

Investigation into Micro-Hardness and Wear Resistance of 316L/SiC Composite Coating in Laser Cladding

open access: yesApplied Sciences, 2020
In order to improve the performance of the cladding layer, this study used the Taguchi orthogonal design to investigate the influence of laser power, scanning speed, gas flow, and SiC powder ratio on the micro-hardness and wear volume of the cladding ...
Guofu Lian   +4 more
doaj   +1 more source

Hardness determination of bio-ceramics using laser-induced breakdown spectroscopy. [PDF]

open access: yes, 2011
Laser-Induced Breakdown Spectroscopy (LIBS) was applied to the analysis of bioceramic samples. The relationship between sample hardness and LIBS plasma properties was investigated, with comparison to conventional Vickers hardness measurements.
Moser, D.   +23 more
core   +1 more source

A new method for hardness determination from depth sensing indentation tests [PDF]

open access: yes, 1996
A new semiempirical formula is developed for the hardness determination of the materials from depth sensing indentation tests. The indentation works measured both during loading and unloading periods are used in the evaluation.
Juhász, A.   +2 more
core   +1 more source

Micro-hardness variation of micro-phases during spheroidisation of AISI4340 steel

open access: yesCogent Engineering, 2021
AISI4340 steel is the medium carbon low-alloy steel has got excellent prominence as a construction material. This steel is spheroidised on heating to the intercritical temperature range by different time intervals with the objective of increasing the ...
Harisha S R   +4 more
doaj   +1 more source

Surface Modification of Red Brass Alloy by Using Laser Technique [PDF]

open access: yesEngineering and Technology Journal, 2016
Laser shock processing technique was performed on red brass alloy type C83300 specimens for the purpose ofstudy its effect on the mechanical properties such as micro-hardness and surface roughness. LSP experimental setup system involved Q-switched Nd:YaG
Abdulhadi Kadhim   +2 more
doaj   +1 more source

Influence of laser and laser-ultrasonic treatments on the durability varying of steel friction surfaces

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2007
The damage of the sliding friction surfaces of constructional steel 40Kh over the stainless steel 12Kh18N10T is researched. From the comparison of the damage processes for steel 40Kh in its initial annealed state, after the laser and laser-ultrasonic ...
G. D. Gureev, D. M. Gureev
doaj   +1 more source

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