scholarly journals Plasma-Detonation Technology for Modification of the Surface Layer of Metal Parts

2009 ◽  
Vol 1 (1) ◽  
pp. 13-19 ◽  
Author(s):  
Yu N. Tyurin ◽  
O. V. Kolisnichenko
Keyword(s):  
Surface Layer ◽  
Metal Parts ◽  
Modification Of The Surface

scholarly journals The analysis of friction properties after laser texturizing of the silicon carbide surface layer

2018 ◽  
Vol 183 ◽  
pp. 02010
Author(s):  
Norbert Radek ◽  
Agnieszka Szczotok ◽  
Renata Dwornicka
Keyword(s):  
Silicon Carbide ◽  
Surface Layer ◽  
Statistical Analysis ◽  
Design Of Experiments ◽  
Laser Beam ◽  
High Reliability ◽  
Laser Beam Machining ◽  
Before And After ◽  
High Roughness ◽  
Modification Of The Surface

The modification of the surface properties is a desired technological procedure. One of the possible method is the electro-spark deposition (ESD). Unfortunately, ESD process produces a surface with high roughness. The laser beam machining (LBM) has been involved to lower roughness of the coating made by ESD. The elements coated by ESD have been tested to determine tribological properties and they were compared before and after LBM. To achieve high reliability of the results, the test has been conducted in accordance with design of experiments methodology and the results which were obtained have been processed by a statistical analysis. The description of such an experiment performed for a silicon carbide SiC coating, the obtained results and the conclusions are included in this paper.

Ionizing Radiation Effect on PMMA Measured by Microhardness

2013 ◽  
Vol 586 ◽  
pp. 198-201 ◽  
Author(s):  
David Manas ◽  
Martin Ovsik ◽  
Miroslav Manas ◽  
Michal Stanek ◽  
Jakub Javorik ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Surface Layer ◽  
Cross Linking ◽  
Case Hardening ◽  
Microhardness Test ◽  
Irradiation Dosage ◽  
The Subject ◽  
Metal Materials ◽  
Injection Technology ◽  
Modification Of The Surface

The experimental study deals with the effect of modification of the surface layer by irradiation cross-linking on the mechanical properties of the Poly (methyl methacrylate) - PMMA tested using the instrumented microhardness test. The surface layer of PMMA specimen made by injection technology was modified by irradiation cross-linking using beta irradiation, which significantly influences mechanical properties of the surface layer. Compared to the heat and chemical-heat treatment of metal materials (e.g. hardening, nitridation, case hardening), cross-linking in polymers affects the surfaces in micro layers. These mechanical changes of the surface layer are observed in the instrumented microhardness test. Our research confirms the comparable properties of surface layer of irradiated PMMA with highly efficient polymers. The subject of this research is the influence of irradiation dosage on the changes of mechanical properties of PMMA.

scholarly journals Modification of the surface layer of the system coating (TiCuN)/substrate (A7) by an intensive electron beam

2015 ◽  
Vol 81 ◽  
pp. 012009 ◽  
Author(s):  
Yu F Ivanov ◽  
A I Potekaev ◽  
E A Petrikova ◽  
O V Ivanova ◽  
I A Ikonnikova ◽  
...  
Keyword(s):  
Surface Layer ◽  
Electron Beam ◽  
Modification Of The Surface
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