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Effect of commercial purity levels on the mechanical properties of ultrafine-grained titanium
(Elsevier, 2011-03-15)
Two grades of commercial purity (CP) titanium (grades 2 and 4) were processed using equal-channel angular extrusion (ECAE) at 300 ◦C and 450 ◦C, respectively. The processing temperatures were the minimum temperatures at ...
High temperature deformation behavior of 4340 steel: activation energy calculation and modeling of flow
(Elsevier, 2013-12)
The 4340 steel is extensively utilized in several industries including automotive and aerospace for manufacturing a large number of structural components. Due to the importance of thermo-mechanical processing in the ...
Fatigue behavior of friction stir welded joints of pure copper with ultra-fine grains
(Elsevier, 2015)
In order to determine the long term durability of friction stir welded joints with ultra-fine grained microstructure, investigation of the mechanical response with specific emphasis on fatigue behaviour is critical. In ...
Application of a novel friction stir spot welding process on dissimilar aluminum joints
(Elsevier, 2018-10)
Intermediate layer friction stir spot welding (IL-FSSW) is introduced in this study as a novel spot welding technique to eliminate the keyhole associated with the conventional friction stir spot welding (FSSW). This process ...
Workability characteristics and mechanical behavior modeling of severely deformed pure titanium at high temperatures
(Elsevier, 2014-01)
In the present study, compression tests were performed at temperatures of 600–900 °C and at strain rates of 0.001–0.1 s−1 to study the deformation and workability characteristics of commercially pure titanium after severe ...
Elevated temperature mechanical behavior of severely deformed titanium
(Springer Nature, 2014-05)
In this investigation, compression tests were performed at a strain rate of 0.001-0.1 s(-1) in the range of 600-900 degrees C to study the high temperature deformation behavior and flow stress model of commercial purity ...
Hot deformation behavior of ultra-fine grained pure Ti
(Trans Tech Publications, 2013-11)
In the present study, compression tests were performed at a strain rate of 0.001 to 0.1 s(-1) and in the range of 600 degrees C to 900 degrees C to investigate the high temperature deformation behavior and flow stress model ...
Improvement of the fatigue performance of an ultrafine-grained Nb–Zr alloy by nano-sized precipitates formed by internal oxidation
(Elsevier, 2008-04)
The formation of nano-sized precipitates in an ultrafine-grained Nb–Zr alloy was investigated. ZrO2 precipitates induced by internal oxidation during heat treatment at low homologous temperatures significantly intensify ...
Cyclic deformation response of ultra-fine grained titanium at elevated temperatures
(Elsevier, 2019-05)
This study focuses on the high-temperature cyclic deformation response (CDR) of ultra-fine grained (UFG) titanium of commercial purity (grade 4) processed via equal channel angular extrusion as a severe plastic deformation ...
Effect of grain size on the very high cycle fatigue behavior and notch sensitivity of titanium
(Elsevier, 2019-12)
The very high-cycle fatigue performances of coarse-grained and ultrafine-grained titanium samples with different geometries at ambient temperature and various stress amplitudes were investigated. Severe plastic deformation ...
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