Results 261 to 270 of about 11,021 (288)

Effect of reduction on Vickers hardness of stabilized zirconia

Journal of Materials Science Letters, 1990
On etudie la durete d'une ceramique de zircone stabilisee par Y 2 O 3 en fonction de son degre d'electro-reduction.
V. R. Pai Verneker, D. Nagle
openaire   +2 more sources

The Relation of the Vickers Hardness With the Loading Stiffness of Instrumented Vickers Indentation of Metal Substrates

Journal of Engineering Materials and Technology, 2010
The present paper presents a relation between the vickers hardness HV and the loading stiffness C of instrumented vickers indentation of metal substrates. The relation is based on the fact that the nonaxisymmetry of the plastic deformation of the vickers indenter leaves the corners of the indentation imprint at the surface of metal substrates after ...
A.E. Giannakopoulos, E. A. Baxevani
openaire   +2 more sources

Relationship between fatigue limit and Vickers hardness in steels

Materials Science and Engineering: A, 2011
Abstract In this work, a method to predict the fatigue limit by using Vickers hardness measurements is proposed. Tests carried out in small regions of different annealed, quenched and quenched-tempered alloy steels allowed an improvement of the empirical Murakami–Endo's equation.
CASAGRANDE, ANGELO, G.P. Cammarota, L. Micele   +2 more
openaire   +3 more sources

HARDNESS UNIFORMITY OF VICKERS HARDNESS BLOCKS FOR THE HIGH HARDNESS RANGE

2014
Hardness uniformity is the most important property of hardness block and depends on the quality of the starting material, process of obtaining, heat and surface treatment. All parameters must be selected very carefully to achieve homogenous microstructure with no defects.
Alar, Željko, Aleksandrov Fabijanić, Tamara, Franz, Mladen   +2 more
openaire   +2 more sources

Effects of Sample Tilt on Vickers Indentation Hardness

2017
A theoretical approach is proposed to characterize the sample tilt by the tilt angle and the rotation angle, which can be calculated by the residual imprint morpholo-gy of Vickers indenter that is ideal with its axis along the vertical direction as well as the loading direction.
Chenghui Gao, Xiangyu Dong, Ming Liu, Guangyu Zhu, Jinming Liao   +4 more
openaire   +2 more sources

The effect of load on Vicker's indentation hardness of coal

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1972
Abstract A theoretical analysis and practical verification of Vicker's hardness formula in relation to applied load and the size of the diagonal of impression is made for a number of coal samples. Vicker's hardness (Hv) is found to be related to the length of the diagonal of impression (d) by the equation Hv = C.dn−2 where C and n are constants (n is
openaire   +2 more sources

Elastic recovery at Vickers hardness impressions

Journal of Materials Science Letters, 1985
Else Breval, N. H. Macmillan
openaire   +2 more sources

Vickers hardness from plastic energy

Scripta Metallurgica et Materialia, 1995
openaire   +2 more sources

Accelerated prediction of Vickers hardness of Co- and Ni-based superalloys from microstructure and composition using advanced image processing techniques and machine learning

Acta Materialia, 2020
Abhishek K Singh
exaly  

Finding the Next Superhard Material through Ensemble Learning

Advanced Materials, 2021
Anton O Oliynyk, Aria Mansouri Tehrani, Jakoah Brgoch   +2 more
exaly