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21/02/2018 11:11:58
Author
جعفر هادي عبود المياح
Views and Downloads
1109
Description
Among non-ferrous metallic materials, berylliumcopper and its modifications have been known to develop high
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21/02/2018 11:06:22
Author
جعفر هادي عبود المياح
Views and Downloads
915
Description
In this work laser surface nitriding was performed to enhance wear and erosion resistance of pure titanium by increasing its surface hardness while keeping the strength and ductility of the core for static and dynamic
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21/02/2018 11:02:29
Author
جعفر هادي عبود المياح
Views and Downloads
888
Description
In the present work laser surface alloying of low carbon steel with carbon has been investigated for automotive application
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21/02/2018 10:59:43
Author
جعفر هادي عبود المياح
Views and Downloads
926
Description
Surface carburizing of a Ti–6Al–4V alloy using laser melting has been investigated experimentally, with the aim of increasing surface hardness and hence improving related properties such as wear and erosion resistance
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20/02/2018 21:20:50
Author
جعفر هادي عبود المياح
Views and Downloads
864
Description
One of the limitations of current high-temperature titanium alloys of the near-c~ type is the poor oxidation resistance at temperatures above about 600 °
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20/02/2018 21:18:03
Author
جعفر هادي عبود المياح
Views and Downloads
807
Description
Among non-ferrous metallic materials, berylliumcopper and its modifications have been known to develop high strength by a process of precipitation. The fact that these alloys suffer from the disadvantages of high cost, certain property limitations and health
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20/02/2018 21:15:16
Author
جعفر هادي عبود المياح
Views and Downloads
776
Description
SurfacemodificationofAISI316stainlesssteelbylasermeltingwasinvestigatedexperimentallyusing 2 and4kWlaserpoweremittedfromacontinuouswaveCO2
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20/02/2018 21:11:57
Author
جعفر هادي عبود المياح
Views and Downloads
780
Description
The injection of SiC particles (150 J1m size) into laser surface melted commercial purity titanium, Ti-6AI-4V (wt-%) alloy, and Ti-2·5Cu (wt-%) alloy has been investigated using 1·75 kW laser power, 5 mm beam diameter, 0·15 g S-l powder jiowrate and
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20/02/2018 21:06:27
Author
جعفر هادي عبود المياح
Views and Downloads
767
Description
Surface treatments of materials using high power CO2 lasers typically involve moving a substrate under the laser beam and generating a melt zone; concurrently, metal or ceramic or a combination of metal + ceramic in the form of powder is introduced into the melted zone by a feeding device, or by preplacing
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20/02/2018 21:02:52
Author
جعفر هادي عبود المياح
Views and Downloads
673
Description
In previously reported work [1-4] high-power CO2 lasers were used to produce Ti/SiC or TiC composite layers, approximately 1 mm thick, by the injection of the cerami
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20/02/2018 20:58:15
Author
جعفر هادي عبود المياح
Views and Downloads
624
Description
Laser surface melting of Ti and Ti alloys has been used to obtain rapid solidification with resultant fine-scale microstructures and segregation [1, 2]. For example
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20/02/2018 18:19:48
Author
جعفر هادي عبود المياح
Views and Downloads
641
Description
The microstructures of titanium aluminide based composites have been investigated using optical microscopy, scanning electron microscopy, energy dispersive spectrometry, transmission electron microscopy, and scanning transmission electron microscopy.
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20/02/2018 18:09:20
Author
جعفر هادي عبود المياح
Views and Downloads
567
Description
The microstructures of Ti-AI layers (from 43-80 at %AI) produced by laser surface alloying of titanium substrate with a powder feed technique have been investigated
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20/02/2018 18:03:15
Author
جعفر هادي عبود المياح
Views and Downloads
547
Description
The microstructures of Ti-Al layers produced by laser surface alloying of a Ti substrate have been investigatedfor Al contents in the range 17-36 at.-%.
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04/01/2018 10:54:43
Author
جعفر هادي عبود المياح
Views and Downloads
514
Description
Surface nitriding of a Ti–6Al–4V alloy by laser melting in a flow of nitrogen gas has been investigated, with the aim of increasing surface hardness and hence improving related properties such as wear and erosion resistance. The effect of the scanning speed, nitrogen dilution, and nitrogen flow rate on microstructure, microhardness,
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