scholarly journals Microstructure, transformation characteristics and mechanical properties of thin TiNi films deposited from a planar magnetron source onto a cylindrical surface

2001 ◽  
Vol 11 (PR8) ◽  
pp. Pr8-421-Pr8-426
Author(s):  
V. V. Martynov ◽  
A. D. Johnson ◽  
V. Gupta ◽  
V. Galhotra
Keyword(s):  
Mechanical Properties ◽  
Cylindrical Surface ◽  
Microstructure Transformation ◽  
Planar Magnetron

Deposition of aluminum Oxynitride Films by Magnetron Sputtering: Effect of Bombardment and Substrate Heating on Structural and Mechanical Properties

1995 ◽  
Vol 388 ◽  
Author(s):  
Russell V. Smilgys ◽  
Eric Takamura ◽  
Irwin L. Singer ◽  
Steven W. Robey ◽  
Douglas A. Kirkpatrick
Keyword(s):  
Mechanical Properties ◽  
Magnetron Sputtering ◽  
Aluminum Oxynitride ◽  
X Ray Diffraction ◽  
Etch Pits ◽  
X Ray ◽  
Substrate Heating ◽  
Glass Substrates ◽  
Planar Magnetron ◽  
Continuous Indentation

ABSTRACTAluminum oxynitride films, 1 μm thick, are deposited onto glass substrates by planar magnetron sputtering from an alumina target in a mixture of nitrogen and argon. one set of films is deposited onto glass substrates that are heat sunk to a holder, whose temperature is held below 100°C. a second set of films is deposited onto glass substrates that are mechanically clamped to a holder, whose temperature is allowed to rise up to 250°C. Characterization by continuous indentation testing, secondary electron microscopy, and x-ray diffraction reveals significant differences in mechanical properties and surface structure between the two sets of films. Films deposited with holder cooling have a smooth surface and no evidence of crystallinity; films deposited without holder cooling have etch pits on their surface that vary with position across the substrate. the later films show crystallinity and have twice the hardness and a 60% greater elastic modulus.

Effect of Cu content on microstructure transformation and mechanical properties of Fe-Al dissimilar laser welded joints

2020 ◽  
Vol 126 ◽  
pp. 106078 ◽  
Author(s):  
Xiaming Chen ◽  
Xiaonan Wang ◽  
Zhenguang Liu ◽  
Zengrong Hu ◽  
Pengcheng Huan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Welded Joints ◽  
Cu Content ◽  
Microstructure Transformation

Effect of Cr content on microstructure and mechanical properties of annealed large-dimensional bulk nanocrystalline Fe–Al–Cr alloys by self-propagating combustion synthesis

2019 ◽  
Vol 9 (6) ◽  
pp. 641-647
Author(s):  
Hongding Wang ◽  
Qiangqiang Wang ◽  
Hong Liu ◽  
Peiqing La ◽  
Zhengning Li
Keyword(s):  
Mechanical Properties ◽  
Combustion Synthesis ◽  
Deformation Behavior ◽  
Isothermal Treatment ◽  
Second Phase ◽  
Cr Content ◽  
Microstructure Transformation ◽  
Average Grain Size ◽  
Bulk Nanocrystalline ◽  
20 Nm

Large-dimensional bulk nanocrystalline Fe–Al–Cr alloys with different chromium contents (5, 10, 15 and 20 wt.%) were prepared by self-propagating combustion synthesis. After isothermal treatment at 1000 °C for 16 hours, the microstructure transformation and the deformation behavior of Fe–Al–Cr alloys were studied and discussed. After annealing, the nanocrystalline matrix of the alloys changed slightly, and the average grain size remained as approximately 20 nm. Owing to the changes in the distribution and shape of the second phase, the annealed nanocrystalline Fe–Al–Cr alloys with different chromium contents provided good plasticity and strength. The annealed Fe–Al–Cr alloy with 15 wt.% chromium achieved the best comprehensive mechanical properties.

Microstructure and Properties of T2 Copper Tube Produced by Severe Hot Rolling

2010 ◽  
Vol 667-669 ◽  
pp. 193-198 ◽  
Author(s):  
Ya Li Wang ◽  
Ying Liu ◽  
Jing Tao Wang ◽  
Fu Sheng Tian
Keyword(s):  
Mechanical Properties ◽  
Microstructure Evolution ◽  
Hot Rolling ◽  
Optical Microscope ◽  
Copper Tube ◽  
Cast Structure ◽  
Microstructure And Properties ◽  
Microstructure Transformation ◽  
Equiaxed Grains ◽  
Rolling Deformation

In this study, the microstructure evolution as well as mechanical properties of T2 copper tube during severe hot rolling has been investigated. Owing to the severe hot rolling deformation and high rolling temperature, the microstructure of T2 copper tube evolved from initial cast structure into relatively homogenous and equiaxed grains during the process, which was testified through the results of optical microscope observation. Besides, the microhardness measurements were taken, from which the results gained were in correspondence to the microstructure transformation.

Linear Friction Welding of a Commercial Aluminum Alloy

2016 ◽  
Vol 870 ◽  
pp. 608-613
Author(s):  
F.F. Musin ◽  
A.Y. Medvedev ◽  
B.O. Bolshakov
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Friction Welding ◽  
Solid Phase ◽  
Ingot Metallurgy ◽  
Linear Friction Welding ◽  
Welding Joint ◽  
Microstructure Transformation ◽  
Linear Friction ◽  
Phase Compound

The mechanical properties and microstructure of a solid-phase compound produced by linear friction welding (LFW) of commercial Al-4.4%Cu-0.5%Mg-0.4%Mn-0.5%Ag alloy have been studied. The samples of Al-Cu-Mg-Ag alloy were produced by ingot metallurgy and subjected to thermomechanical treatment to get different initial microstructures. It has been shown that the LFW of two rectangular-shaped samples with different microstructures enabled forming a well-done welding joint without macroscopic defects. The LFW samples have shown high mechanical properties. Strength has reached 452 MPa, and plasticity has become not less 15%. The microstructure transformation in the welding joint during plastic deformation and deformation heating at LFW is discussed.

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