scholarly journals Influence of the Technology of Obtaining the Material of the Cathode of the Cu – Fe System at the Depth of Penetration of Ions into the Titanium Target

2022 ◽  
Author(s):  
V.V. Ovchinnikov
Keyword(s):  
Titanium Alloy ◽  
Powder Metallurgy ◽  
Penetration Depth ◽  
Depth Of Penetration ◽  
Titanium Target ◽  
Alloy Vt20

Abstract. The article presents the results of the influence of the technology of obtaining the material of the cathode of the implanter of the Cu – Fe system on the penetration depth of the titanium alloy VT20. It is shown that the use of 50% Cu – 50% Fe material as the material of the cathode of the implanter, obtained by alloying copper and iron, leads to a better increase in the thickness of the ion-doped layer than the use of the cathode obtained by powder metallurgy.

Influence of the Structural State of Titanium Alloy on the Depth of Penetration of Ions during Implantation

2021 ◽  
Vol 1037 ◽  
pp. 541-546
Author(s):  
Viktor Vasilevich Ovchinnikov ◽  
Svetlana Viktorovna Yakutina ◽  
Irina Aleksandrovna Kurbatova ◽  
Elena Vladimirovna Luk'yanenko ◽  
Nadezda Vladimirovna Uchevatkina
Keyword(s):  
Titanium Alloy ◽  
Ion Implantation ◽  
Titanium Alloys ◽  
Penetration Depth ◽  
Structural State ◽  
Depth Of Penetration ◽  
Structural Class ◽  
Martensitic Class ◽  
Alloy Vt20

The article presents the results of the influence of the structural state of titanium alloys VT1-0 (α-alloy), VT20 (pseudo-α-alloy), VT6 (α + β) -alloy of the martensitic class) and VT15 (pseudo-β-alloy) on the penetration depth ions of nitrogen, aluminum, copper and the cathode of the alloy 50% Cu – 50% Fe. It is shown that the structural class of titanium alloys selected for the study, when exposed to ion implantation by both gases and metals, does not significantly affect the depth of their penetration.

Preparation of Titanium Alloy Parts by Powder Compact Extrusion of a Powder Mixture and Scaled up Manufacture

2016 ◽  
Vol 704 ◽  
pp. 75-84 ◽  
Author(s):  
Fei Yang ◽  
Brian Gabbitas ◽  
Ajit Pal Singh ◽  
Stella Raynova ◽  
Hui Yang Lu ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Powder Metallurgy ◽  
Titanium Alloys ◽  
Powder Mixture ◽  
Powder Compact ◽  
Blended Elemental ◽  
Pilot Plant Scale ◽  
Near Net Shape ◽  
Titanium Processing ◽  
The University

Blended Elemental Powder Metallurgy (BE-PM) is a very attractive method for producing titanium alloys, which can be near-net shape formed with compositional freedom. However, a minimization of oxygen pick-up during processing into manufactured parts is a big challenge for powder metallurgy of titanium alloys. In this paper, different approaches for preparing titanium alloy parts by powder compact extrusion with 0.05-0.1wt.% of oxygen pick-up during manufacturing are discussed. The starting materials were a powder mixture of HDH titanium powder, other elemental powders and a master alloy powder. Different titanium alloys and composites, such as Ti-6Al-4V, Ti-4Al-4Sn-4Mo-0.5Si, Ti-5Al-5V-5Mo-3Cr, and Ti-5Al-5V-5Mo-3Cr-5vol%TiB, with different profiles such as round and rectangular bars, a wedge profile, wire and tubes have been successfully manufactured on a laboratory and pilot-plant scale. Furthermore, a possible route for scaling up the titanium processing capabilities in the University of Waikato has also been discussed.

Investigation on the microstructure and mechanical properties of Ti6Al4V titanium alloy electron beam welding joint

2022 ◽  
pp. 095440622110329
Author(s):  
Xilong Zhao ◽  
Xinhong Lu ◽  
Kun Wang ◽  
Feng He
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Electron Beam ◽  
Penetration Depth ◽  
Welding Speed ◽  
Welded Joints ◽  
Electron Beam Welding ◽  
Martensite Phase ◽  
Ti6al4v Titanium Alloy ◽  
Microstructure And Mechanical Properties

Electron beam welding (EBW) is a fusion joining process particularly suitable for welding titanium plates. In the present work, 2.5 mm thickness Ti6Al4V titanium alloy plates were butt-welded together with backing plates by EBW. The detailed procedures of experiments were used to investigate the microstructure and mechanical properties of welded joints. The optimum welding speed was determined by microstructure examinations, microhardness tests, X-Ray diffraction tests, shear punch tests (SPT) and stress simulation calculations. The results showed that all microstructure of welded metal (WM) was martensite phase under the different welding speeds. In the heat-affected zone (HAZ), the martensite phase gradually evolved to be small and equiaxed. It can be seen that the microstructure of each region in welded joints did not change significantly. When the welding speed is between 8 mm/s and 14 mm/s, it can be seen from the macroscopic appearance of the joints that there was no utterly fused penetration between the butt plate and substrate. Finite element simulation was carried out for the no-penetration depth under different welding conditions, and it was found that the stress suffered by the small no-penetration depth was the smallest. Using different welding parameters shows that the engineering stress in WM was higher than other areas, and BM was the lowest. As welding speed increases from 8 mm/s to 14 mm/s, the variation of microhardness distribution was not evident.

Depth of penetration of lubricant fluids and water in Queenston shale of southern Ontario

2017 ◽  
Vol 54 (2) ◽  
pp. 248-257 ◽  
Author(s):  
Hayder Mohammed Salim Al-Maamori ◽  
M. Hesham El Naggar ◽  
Silvana Micic
Keyword(s):  
Polymer Solution ◽  
Penetration Depth ◽  
Deformation Behaviour ◽  
Test Procedure ◽  
Time Dependent ◽  
Efficient Technique ◽  
Depth Of Penetration ◽  
Water Penetration ◽  
Southern Ontario ◽  
Rock Formation

Queenston shale is a rock formation located in southern Ontario in Canada that exhibits time-dependent deformation behaviour induced by water penetration. Microtunnelling is an efficient technique that can be used to construct pipelines and tunnels in Queenston shale. In this technique, lubricant fluids, such as bentonite solution and polymer solution, are utilized, which can have a significant impact on the time-dependant deformation (i.e., swelling) of Queenston shale within their depth of influence. A test procedure was developed in this research to investigate the depth of penetration of lubricant fluids and water in Queenston shale. These fluids were applied under pressure, similar to that used in the microtunnelling process, on Queeenston shale specimens. The depth of penetration of these fluids into the test specimens was monitored with time. It was concluded that the penetration depth varied for the various fluids considered. Water had the deepest penetration into Queenston shale. Based on the observed results, an equation is developed to predict the depth of penetration of various fluids in the Queenston shale mass. Results of this research can assist in evaluating the depth of influence of various fluids in Queenston shale and the associated swelling zone can be predicted.

Formation Structure and Properties of Parts from Titanium Alloys Produced by Direct Laser Deposition

2017 ◽  
Vol 265 ◽  
pp. 535-541 ◽  
Author(s):  
M.O. Sklyar ◽  
Olga G. Klimova-Korsmik ◽  
V.V. Cheverikin
Keyword(s):  
Titanium Alloy ◽  
Titanium Alloys ◽  
Fractional Composition ◽  
Laser Deposition ◽  
Deposition Method ◽  
Structure And Properties ◽  
Direct Laser Deposition ◽  
Direct Laser ◽  
Alloy Vt20

In this article, perspective using of the laser deposition method for manufacture details from the titanium alloy VT20 is considered. Dependence on a structure of the fractional composition is shown. Study of the structure and properties of parts, which were produced by DLD technology using different modes and under different conditions.

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