-
Article
Open AccessThe finding of anisotropic compatibility of grain boundaries in a directionally solidified superalloy
The anisotropic compatibility of grain boundaries (GBs) is found in a directionally solidified superalloy, when loading is aligned with (L sample) or transverse (T sample) to the grain growth direction. The gr...
-
Chapter and Conference Paper
Using X-Ray Computed Tomography for Effective Porosity Characterisation in Additively Manufactured Metallic Parts
Common microscopy approaches are considered as destructive technologies for porosity characterization in metallic parts for various engineering components. They are not only time consuming, but also causes was...
-
Article
Elimination of porosity in additively manufactured 316L stainless steel by high-pressure torsion
In metal additive manufacturing (AM), porosity is a major defect that could compromise their mechanical and functional performance. Very recently, high-pressure torsion (HPT) has emerged as an effective approa...
-
Article
Open AccessThe hot deformation behaviour of laser powder bed fusion deposited Al–Si–Cu alloy processed by high-pressure torsion
The tensile properties of an ultrafine-grained Al–9%Si–3%Cu alloy deposited by the laser powder bed fusion process have been investigated in this work. The additively manufactured (AM) alloy was subjected to h...
-
Article
Open AccessMicrostructural and hardness evolution of additively manufactured Al–Si–Cu alloy processed by high-pressure torsion
Nanostructured Al-9%Si-3%Cu alloy was achieved by direct metal laser sintering (DMLS) and then processed using high-pressure torsion (HPT) processing, which resulted in considerable grain refinement down to 60...
-
Article
Effects of the CNT Content and Plating Solution pH After Purification on the Performance of Ni–P/CNT Composite Coating
After CNTs were purified, Ni–P/CNT composite coating was prepared at different CNT contents and plating solution pH values by univariate experimental method. Besides, the surface appearance, hardness, corrosi...
-
Article
Open AccessEffect of sample orientation on the microstructure and microhardness of additively manufactured AlSi10Mg processed by high-pressure torsion
For the first time, high-pressure torsion (HPT) was applied to additively manufactured AlSi10Mg built in two directions (vertical and horizontal) by selective laser melting (SLM), and the influence of extreme ...
-
Article
An investigation into the effect of substrate on the load-bearing capacity of thin hard coatings
TiN and diamond-like carbon (DLC) coatings were deposited on Ti substrates with and without processing by high-pressure torsion (HPT). The HPT processing refined the grain size of titanium from the coarse-grai...
-
Article
The corrosion behaviour of commercial purity titanium processed by high-pressure torsion
Commercial purity (CP) titanium was processed by high-pressure torsion (HPT) under an applied pressure of 6.0 GPa for different numbers of torsional revolutions and then exposed to a 3.5 % NaCl solution for op...
-
Article
Tribology testing of ultrafine-grained Ti processed by high-pressure torsion with subsequent coating
A grade 2 pure Ti was processed by high-pressure torsion (HPT) under 3.0 GPa for 10 revolutions to achieve an improved strength. Wear tests revealed that HPT only slightly improved the wear resistance of pure ...
-
Article
An analytical approach and experimental confirmation of dislocation–twin boundary interactions in titanium
The morphology of \( \{ 10\overline{1} 2\} \left\langle {\overline{1} 011} \right\rangle \) ...
-
Article
Tribological properties of ultrafine-grained materials processed by severe plastic deformation
Processing by severe plastic deformation (SPD) has been developed extensively over the last two decades in order to produce ultrafine-grained (UFG) materials having submicrometre or nanometre grain sizes. An i...
-
Article
Wear behavior of an aluminum alloy processed by equal-channel angular pressing
Wear tests were conducted on an aluminum Al-1050 alloy after processing by equal-channel angular pressing (ECAP). The results show that the coefficient of friction remains unchanged after processing by ECAP, b...
