Results 21 to 30 of about 50,382 (328)

Thermal stability of laser treated die material for semi-solid metal forming [PDF]

open access: yes, 2009
This paper presents laser surface modification work performed to improve the lifetime of die materials. Die material AISI H13, with typical hardness in the range of 42 to 48 HRC, offers high wear and corrosion resistance.
Aqida, S.N.   +4 more
core   +2 more sources

INDENTATION SIZE EFFECT OF HEAT TREATED ALUMINUM ALLOY

open access: yesActa Metallurgica Slovaca, 2019
The aim of the submitted work is to study the influence of applied  loads ranging from 0.09807 N to 0.9807 N on measured values of micro-hardness of heat treated aluminum alloy 6082. The influence of applied load on a measured value of micro-hardness was
Jozef Petrík   +4 more
doaj   +1 more source

Process parameters optima in quick-point grinding ceramics based on the intelligent algorithm

open access: yesAdvances in Mechanical Engineering, 2020
This article studied the relationship between surface roughness and surface micro hardness of the hard-brittle materials and the process parameters in quick-point grinding, and then established the prediction model for the surface micro hardness and ...
Yunguang Zhou   +4 more
doaj   +1 more source

Residual stress relaxation and surface hardness of a 2024-t351 aluminium alloy [PDF]

open access: yes, 2010
For design it is generally important to consider the residual stress relaxation. In the study for this contribution, 2024 T351 Aluminium alloy specimens were shot peened at three different shot peening intensities, followed by fatigue tests for two loads.
Ali, Aidy   +3 more
core   +1 more source

Investigation of Micro Hardness, Cooling Rate and Microstructure of ATIG Welded samples of Al-SiC composite

open access: yesMATEC Web of Conferences, 2018
Activated TIG welding has been performed on Al – 8% SiC composite 5mm plate with various fluxes such as Al2O3, MnO2, CaO, MgO, SiO2 & TiO2, to study & analyze the Microstructure, Micro hardness and cooling rate.
Pichumani Sivachidambaram   +2 more
doaj   +1 more source

Micro-hardness of Acrylic Resin utilized for Provisional Crowns: Effect of different polymerization techniques and pH-Cycling

open access: yesBrazilian Dental Science, 2013
Objective: This study aimed at evaluating the micro-hardness of an acrylic resin used for provisional crowns. Materials and methods: Five different processing techniques (direct and indirect) were assessed: (I) auto polymerizing resin in sandy stage ...
César Augusto Zanlorenzi Nicodemo   +3 more
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

Tribocorrosion Properties of PEO Coatings Produced on AZ91 Magnesium Alloy with Silicate- or Phosphate-Based Electrolytes [PDF]

open access: yes, 2018
In this work, the tribocorrosion behavior of plasma electrolytic oxidation (PEO)-coated AZ91 samples was studied. In particular, two different coatings were produced and compared. One was obtained with an alkaline electrolyte containing sodium phosphate,
Brunelli, Katya   +7 more
core   +2 more sources

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

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

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