Results 211 to 220 of about 10,227 (256)

Distribution function of the spherulite dimensions and the microhardness of polypropylene

Polymer Mechanics, 1975
The authors demonstrate the advantage of using mathematical statistics to construct the distribution function of the spherulite dimensions and the existence of correlations between the technological casting conditions of the polymer and the parameters of this function, on the one hand, and between these parameters and the microhardness, on the other.
A. M. Ar'ev, S. M. Olesnevich, V. D. Kozhurova   +2 more
openaire   +1 more source

Microstructure, Phase and Microhardness Distribution of Laser Deposited Ni-Based Amorphous Coating

International Journal of Surface Science and Engineering, 2009
Ni59Zr16Ti13Si3Sn2Nb7 amorphous material was deposited by laser cladding onto Ti-3Al-5Mo-5V-4Cr-2Zr titanium alloy. Despite trials with wide range of process parameters, the present experiments were unable to retain complete amorphous surface microstructure after laser cladding.
Chaoping Jiang, Jinshan Li, Hongchao Kou, Jiangbo Dai, Xiangyi Xue, Hengzhi Fu   +5 more
openaire   +1 more source

Distribution of the crystal modifications in polymorphous PbSe films revealed by microhardness measurements

Journal of Materials Science, 1999
Microhardness measurements of homogeneous and layered polymorphous PbSe films as well of the KCl and BaF2 substrates on which the films were deposited were undertaken. The interpretation of the experimental results lead to a formula describing more adequately the indentation size effect.
M. Baleva, E. Mateeva, E. P. Trifonova
openaire   +1 more source

Effect of a Special ECAP Die Configuration on Microhardness Distributions in Pure Aluminum

Materials Science Forum, 2010
Experiments were conducted to evaluate the feasibility of using a new ECAP die configuration in which there are arcs of curvature at the intersection of the two channels at both the outer and inner points. The experiments used a configuration in which the radii of curvature were identical at both the outer and inner points since calculations suggest ...
Zhi Chao Duan, Terence G. Langdon
openaire   +2 more sources

The structure of Ti-Ta welded joint and microhardness distribution over the cross section

Saratov Fall Meeting 2017: Optical Technologies in Biophysics and Medicine XIX, 2018
In order to create highly efficient medical systems and measuring biosensors, an approach is frequently used, in which the constructive basis of the product is made of a high-strength biocompatible material (titanium, stainless steel), and the functional layer is made of a more expensive metal (Ta, Zr, Au, Pt, etc.) or ceramics (Ta 2 O 5 , ZrO 2 ...
Igor Rodionov, Natalia Steinhauer, Andrey Zakharevich, Andrey Shelkunov, Ivan Egorov, Vladimir Koshuro, Aleksandr A. Fomin   +6 more
openaire   +1 more source

Microstructural characterisation and microhardness distribution of HVOF sprayed WC–10Co–4Cr coating

Surface Engineering, 2014
The aim of this work was to study the detailed microstructures, thermostability and microhardness distribution of high velocity oxygen fuel sprayed WC–10Co–4Cr coating using X-ray diffraction, scanning electron microscope, energy dispersive spectroscopy, differential scanning calorimeter and high resolution transmission electron microscope.
S. Hong, Y. P. Wu, W. W. Gao, B. Wang, W. M. Guo, J. R. Lin   +5 more
openaire   +1 more source

Study of the microhardness distribution in a coating based on tungsten carbides obtained by laser surfacing on a stainless steel surface

Известия Российской академии наук. Серия физическая, 2023
We studied the microhardness of the wear-resistant coating obtained by laser powder surfacing on the surface of 420 stainless steel. The dependences between the treatment mode, the obtained hardness and the geometry of the coating are established. It is determined that when a total equal voltage is applied to all diodes, the generated radiation does ...
N. S. Dovbysh, D. I. Gavrilov, A. V. Zhdanov, V. V. Morozov   +3 more
openaire   +1 more source

The Weibull Distribution of Microhardness in Plasma Sprayed NiCrAl/AT13 Nanostructured Ceramic Coating

Applied Mechanics and Materials, 2013
Al2O3-13% TiO2 based nanostructured ceramic coatings were prepared on the surface of NiCrAl alloy by Plasma Spraying technology. Compared to the micron ceramic coating (MCC), the average value of hardness of nanostructured ceramic coating (NCC) was much higher than that of MCC, and the NCC presents typical bi-modal distribution.
Gao Xu Tan, Tong Wang, En Bing Bi
openaire   +1 more source

Influence of Route Multiplicity and Drawing Rate on Microhardness Distribution Over Steel Wire Cross Section

Metallurgist, 2020
An experimental and finite element study of the effect of the multiplicity of wire drawing regime stages and wire drawing speed on microhardness distribution in steel wire cross section is conducted. Microhardness dependencies are obtained at the surface and within the center of wire on diameter for steel wire multistage drawing.
S. M. Goloviznin, G. I. Maminov, D. S. Terskikh, D. S. Goloviznin   +3 more
openaire   +1 more source

Influence of Manufacturing Process on Distribution of MWCNT in Aluminium Alloy Matrix and its Effect on Microhardness

Materials Science Forum, 2018
Nano composites are finding increased focus and their influence on improving the matrix properties are very attractive. But the success is fully dependent on the uniform distribution and dispersion of nano reinforcements in the matrix. Manufacturing process was found to have greater role in distribution of the reinforcements.
V. Umasankar, Thomas Shijo
openaire   +1 more source