Structure, castability and mechanical properties of commercially pure and alloyed titanium cast in graphite mould

2007 ◽  
Vol 0 (0) ◽  
pp. 070213070820009-???
Author(s):  
W. W. CHENG ◽  
C. P. JU ◽  
J. H. CHERN LIN
Keyword(s):  
Mechanical Properties ◽  
Commercially Pure ◽  
Alloyed Titanium ◽  
Graphite Mould

scholarly journals Microstructure and Mechanical Properties of Friction Stir Welded Joints Between Commercially Pure Copper and Al 6351 Alloy

2017 ◽  
Vol 62 (3) ◽  
pp. 1819-1825
Author(s):  
V.C. Sinha ◽  
S. Kundu ◽  
S. Chatterjee
Keyword(s):  
Mechanical Properties ◽  
Welded Joints ◽  
Rotational Speed ◽  
Pure Copper ◽  
Stir Zone ◽  
Tool Rotational Speed ◽  
Friction Stir ◽  
Commercially Pure ◽  
Microstructure And Mechanical Properties ◽  
Commercially Pure Copper

AbstractIn the present study, the effect of tool rotational speed on microstructure and mechanical properties of friction stir welded joints between commercially pure copper and 6351 Al alloy was carried out in the range of tool rotational speeds of 300-900 rpm in steps of 150 rpm at 30 mm/minutes travel speed. Up to 450 rpm, the interface of the joints is free from intermetallics and Al4Cu9intermetallic has been observed at the stir zone. However, Al4Cu9intermetallic was observed both at the interface and the stir zone at 600 rpm. At 750 and 900 rpm tool rotational speed, the layers of AlCu, Al2Cu3and Al4Cu9intermetallics were observed at the interface and only Al4Cu9intermetallics has been observed in the stir zone. The maximum ultimate tensile strength of ~207 MPa and yield strength of ~168 MPa along with ~6.2% elongation at fracture of the joint have been obtained when processed at 450 rpm tool rotational speed.

The Mechanical Properties of Si+ and Pb+ Implanted Al

1983 ◽  
Vol 27 ◽  
Author(s):  
P.B. Madakson
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Wear Resistance ◽  
Precipitation Hardening ◽  
Surface Oxidation ◽  
Linear Increase ◽  
Commercially Pure ◽  
Dislocation Movement ◽  
Dose Dependent ◽  
Al Matrix

ABSTRACTCommercially pure Al was implanted with 300 keV Si+ and 200 keV Pb+ to doses of between l011 and 1017 ions/cm2. Changes in friction, wear, oxidation and hardness were investigated. Silicon increased the hardness and wear resistance of Al and significantly decreased friction and the oxidation of the implanted surface. These changes were observed to be almost proportional to the implanted dose. The implantation of Pb+ resulted in a linear increase in hardness and a decrease in surface oxidation with dose. Friction decreased and wear resistance increased but the changes were not dose dependent. The implantation of Si+ did not significantly alter the distribution of impurities, such as Fe and Cu within the Al matrix, but Pb+ resulted in a diffusion of Fe to the implanted surface. Formation of precipitates was observed and the improvements in the surface properties studied are considered to result from precipitation hardening, which involves the impediment of dislocation movement by the precipitates during plastic deformation of the implanted Al.

Effect of Combined Rolling Processes on Structure and Mechanical Properties of Pure Titanium Rods

2010 ◽  
Vol 667-669 ◽  
pp. 161-166 ◽  
Author(s):  
Nikolay Lopatin ◽  
Grigoriy Diakonov ◽  
Olga Pleshakova
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Microstructure Evolution ◽  
Strain State ◽  
Pure Titanium ◽  
Element Model ◽  
Warm Rolling ◽  
Shape Rolling ◽  
Commercially Pure ◽  
The Finite Element Model

This article focuses on the effect of combine rolling processes on structure and mechanical properties of the commercially pure Ti rods. The finite element model had being made. The analysis of strain state at the screw and shape rolling was done. The analysis of microstructure evolution at the warm rolling was completed.

Tensile Ductility of Electron Beam Welded Titanium Alloys

2012 ◽  
Vol 713 ◽  
pp. 133-138
Author(s):  
Timotius Pasang ◽  
J.C. Sabol ◽  
Wojciech Z. Misiolek ◽  
Ryan Mitchell ◽  
Andrew B. Short ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Grain Boundary ◽  
Titanium Alloys ◽  
Electron Beam Welding ◽  
Tensile Ductility ◽  
Commercially Pure ◽  
Materials Used ◽  
Cp Ti ◽  
Welding Technique

Butt welded joins were produced between commercially pure (CP) titanium and various titanium alloys using an electron beam welding technique. The materials used were CP Ti, Ti-6Al-4V (Ti64) and Ti-5Al-5V-5Mo-3Cr (Ti5553). Grain boundary structures, mechanical properties, compositional profiles across the welds and fracture modes are presented. CP Ti has always been known for its excellent weldability, Ti64 has good weldability and, preliminary results indicated that Ti5553 alloy is also weldable.

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