Mechanical characterization of Ti-added MgB2/Cu superconducting wires using Vickers hardness test

2007 ◽  
Vol 101 (2-3) ◽  
pp. 470-474 ◽  
Author(s):  
N. Güçlü
Keyword(s):  
Vickers Hardness ◽  
Mechanical Characterization ◽  
Hardness Test ◽  
Superconducting Wires ◽  
Vickers Hardness Test

scholarly journals The effect of various Co contents on the microstructure and properties of Ti(C,N)-TiB2-Co cermets prepared in situ via reactive hot pressing

2020 ◽  
Vol 12 (5) ◽  
pp. 168781402092571
Author(s):  
Xianrui Zhao ◽  
Ze Yu ◽  
Dunwen Zuo ◽  
Qintao Li ◽  
Mengxian Zhang ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Relative Density ◽  
Vickers Hardness ◽  
Hot Pressing ◽  
Hardness Test ◽  
Reactive Hot Pressing ◽  
Compacting Pressure ◽  
Vickers Hardness Test ◽  
Scanning Electron

Ti(C,N)-TiB2-Co cermets were in situ synthesized, via reactive hot pressing from the Co-Ti-C-BN system, with a Co content ranging from 6 to 22 wt%. The microstructure, relative density, hardness, and fracture toughness of the sintered compacts was investigated by light microscopy, scanning electron microscopy, ceramic densitometry, and Vickers hardness test. The investigations indicate that during hot pressing (compacting pressure = 30 MPa), when the Co content is 14–22 wt%, the metal binder is extruded. Co and Ti are included in the extrudate, breaking the original ratio and deteriorating the properties of the sintered products. As the Co content increases from 6 wt% to 12 wt%, the porosity increases, and the relative density increases from 97.2% to 99.5%. The fracture toughness increases from 6.1 to 6.8 MPa m1/2. The Vickers hardness first increases from 1897 HV10 to the maximum 1960 HV10 and then decreases slightly to 1945 HV10.

Finite Element Method for Simulating the Vickers Hardness Test

2014 ◽  
Vol 555 ◽  
pp. 419-424 ◽  
Author(s):  
Victor Popovici ◽  
Adrian Catalin Pavalache ◽  
Mihai Vasile ◽  
Ionelia Voiculescu ◽  
Elena Manuela Stanciu ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Element Modeling ◽  
Vickers Hardness ◽  
Young Modulus ◽  
Hardness Test ◽  
The Finite Element Method ◽  
Simulation Based ◽  
Vickers Hardness Test ◽  
Element Method

The purpose of the present paper is to present a different approach to the finite element modeling of the Vickers hardness test measurement, and to establish a numerical correlation between the Young modulus of a material and its hardness. In order to realize this, calculations were based upon the tensions acquired as a result of the hollow caused in the investigated materials by the indenter the maps of stresses. The present work demonstrates that from the results of the simulation based on the finite element method it is possible to compute a material’s hardness.

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