Microstructural and mechanical properties of CFC composite/Ti6Al4V joints brazed with Ag–Cu–Ti and refractory metal foils

2021 ◽  
Vol 21 (3) ◽  
Author(s):  
Yuhang Kang ◽  
Kaimin Feng ◽  
Weitang Zhang ◽  
Yangwu Mao
Keyword(s):  
Mechanical Properties ◽  
Refractory Metal ◽  
Metal Foils

SUBSTRUCTURE AND MECHANICAL PROPERTIES OF REFRACTORY METAL WIRES

1964 ◽  
Author(s):  
Roy Kaplow ◽  
John F. peck ◽  
Frank T. J. Smith ◽  
David A. Thomas
Keyword(s):  
Mechanical Properties ◽  
Refractory Metal ◽  
Metal Wires

Refractory metal alloying: A new method for improving mechanical properties of tungsten heavy alloys

2017 ◽  
Vol 709 ◽  
pp. 609-619 ◽  
Author(s):  
U. Ravi Kiran ◽  
A. Panchal ◽  
M. Prem Kumar ◽  
M. Sankaranarayana ◽  
G.V.S. Nageswara Rao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Refractory Metal ◽  
New Method ◽  
Heavy Alloys ◽  
Tungsten Heavy Alloys

Friction Stir Lap Welding of Aluminum to Steel Using Refractory Metal Pin Tools

2015 ◽  
Vol 137 (2) ◽  
Author(s):  
M. Shamsujjoha ◽  
Bharat K. Jasthi ◽  
Michael West ◽  
Christian Widener
Keyword(s):  
Mechanical Properties ◽  
Refractory Metal ◽  
Joint Strength ◽  
Joint Interface ◽  
Friction Stir Lap Welding ◽  
Plunge Depth ◽  
Friction Stir ◽  
Joint Efficiency ◽  
Bonding Area ◽  
Lap Welding

Steel and Al were friction stir lap welded using two different W-25% Re-4% HfC pin tools, having two different pin diameters and pin lengths. The effects of plunge depth, bonding area, and top sheet positions on the microstructure and mechanical properties were investigated. Morphology of the joint interface showed severe steel flash on the retreating side, which controlled the joint strength when the top sheet was placed on the retreating side. A joint efficiency of 58% was achieved when right-handed lap welds were made using the pin tool with longer pin length.

Interfacial stability and mechanical properties of Al2O3 fiber reinforced Ti matrix composites

1994 ◽  
Vol 9 (2) ◽  
pp. 498-503 ◽  
Author(s):  
Hsin-Fu Wang ◽  
John C. Nelson ◽  
Chien-Li Lin ◽  
William W. Gerberich
Keyword(s):  
Mechanical Properties ◽  
Surface Roughness ◽  
Refractory Metal ◽  
Frictional Coefficient ◽  
Frictional Stress ◽  
Matrix Composites ◽  
Interfacial Stability ◽  
Fiber Reinforced ◽  
Atomic Force ◽  
Al2o3 Fiber

The mechanical properties of the interfaces in an Al2O3 fiber reinforced β-21S Ti alloy have been evaluated by using fiber pushout tests. The Al2O3 fibers were coated with a refractory metal and Y2O3 which served as a diffusion barrier during the HIPing used to produce the metal matrix composites. By doing fiber pushout tests, the interfacial fracture was found to occur at the interface between the refractory metal and the Y2O3. The interfacial shear strength and interfacial frictional stress were measured to be 323 and 312 ± 2 MPa, respectively. The interfacial frictional stress, which is due to asperity interlocking during the fiber sliding, was correlated to the surface roughness of the coated Al2O3 fiber obtained with the aid of an atomic force microscope. The measured surface roughness of 18.8 ± 2.2 nm was related to the frictional stress through Hutchinson's model.9 The frictional coefficient between the Al2O3 fiber and the Ti matrix is calculated to be 0.32 ± 0.02.

scholarly journals An Experimental Study on Micro-Shear Clinching of Metal Foils by Laser Shock

Materials ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1422 ◽  
Author(s):  
Xinding Li ◽  
Xiao Wang ◽  
Zongbao Shen ◽  
Youjuan Ma ◽  
Huixia Liu
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Shear Test ◽  
Failure Modes ◽  
Dissimilar Materials ◽  
Laser Pulses ◽  
Laser Shock ◽  
Metal Foils ◽  
Process Characteristics ◽  
Similar Materials

This work proposes a micro-shear clinching process by laser shock for joining similar and dissimilar metal foils. The joint appearance and cross-section were investigated to determine basic process parameters. The soft punch thickness was 100 μm. The numbers of laser pulses on the upper and lower foil sides were set as two and one, respectively. Joint deformation was divided into three stages and we investigated the deformation law of the joints. The process windows of the Al foil combinations were acquired to determine a reasonable range of process parameters for obtaining qualified joints. The mechanical properties and failure modes of different joints were analyzed to identify the process characteristics. Mechanical properties were related to shear test directions and were influenced by upper and lower foil thicknesses. One failure mode was observed in the parallel shear test, and four failure modes were observed in the perpendicular shear test. These modes were determined by the differences between upper and lower foil thicknesses. Results showed that the proposed process can be used to join Al and Cu foils successfully. The laws governing the mechanical properties and failure modes of dissimilar materials were similar to those governing the mechanical properties and failure modes of similar materials.

Sign in / Sign up

Export Citation Format

Share Document