scholarly journals The Influence of Grain Size on Twinning and Microstructure Refinement During Cold Rolling of Commercial-Purity Titanium

2016 ◽  
Vol 47 (10) ◽  
pp. 5101-5113 ◽  
Author(s):  
S. V. Zherebtsov ◽  
G. S. Dyakonov ◽  
G. A. Salishchev ◽  
A. A. Salem ◽  
S. L. Semiatin
Keyword(s):  
Grain Size ◽  
Cold Rolling ◽  
Commercial Purity ◽  
Microstructure Refinement ◽  
Commercial Purity Titanium ◽  
Purity Titanium

scholarly journals Dependences of Grain Size and Strain-Rate on Deformation Behavior of Commercial Purity Titanium Processed by Multi-Directional Forging

2020 ◽  
Vol 61 (12) ◽  
pp. 2320-2328
Author(s):  
S. Yamamoto ◽  
Y. Miyajima ◽  
C. Watanabe ◽  
R. Monzen ◽  
T. Tsuru ◽  
...  
Keyword(s):  
Grain Size ◽  
Strain Rate ◽  
Deformation Behavior ◽  
Commercial Purity ◽  
Commercial Purity Titanium ◽  
Purity Titanium

Ultrasonic Impact Treatment of Fine- and Coarse Grained Commercial Purity Titanium

2016 ◽  
Vol 1139 ◽  
pp. 12-15
Author(s):  
Rustam Hairullin ◽  
Anna Kozelskaya ◽  
Marina Kazachenok
Keyword(s):  
Plastic Deformation ◽  
Grain Size ◽  
Surface Layer ◽  
Electron Backscatter Diffraction ◽  
Coarse Grained ◽  
Commercial Purity ◽  
Ultrasonic Impact Treatment ◽  
Commercial Purity Titanium ◽  
Wide Range ◽  
Purity Titanium

The grain size effect on surface morphology, microstructure and mechanical properties of commercial purity titanium specimens subjected to ultrasonic impact treatment was studied. It was found by atomic force microscope that ultrasonic impact treatment of titanium specimens resulted in surface corrugation happens due to their severe plastic deformation. The profile height of the corrugated surface depends on the grain size of specimens and varies in a wide range. The thicknesses of a modified surface layer of fine-and coarse grained titanium specimens were studied. Electron backscatter diffraction (EBSD) analysis revealed that the plastic deformation was accompanied by twin and low angle boundary formation in the surface layer of titanium specimens. The effect of ultrasonic impact treatment on the microhardness of the surface layer of the specimens under study was investigated.

Twinning-Induced Formation of Nanostructure in Commercial-Purity Titanium

2014 ◽  
Vol 783-786 ◽  
pp. 2732-2737 ◽  
Author(s):  
Sergey V. Zherebtsov ◽  
G. Dyakonov ◽  
M. Klimova ◽  
Gennady A. Salishchev
Keyword(s):  
Grain Size ◽  
Beneficial Effect ◽  
Temperature Increase ◽  
Subgrain Size ◽  
Commercial Purity ◽  
Thickness Strain ◽  
Commercial Purity Titanium ◽  
Ultrafine Grained ◽  
Kinetics Of ◽  
Purity Titanium

In the present work the influence of various parameters on formation of nanoor ultrafine-grained structure in commercial-purity titanium during large deformation was quantified using TEM and EBSD. The beneficial effect of twinning on the kinetics of microstructure refinement in titanium was revealed. It was shown that deformation twinning (and therefore nanostructure formation) can be intensified via decrease in temperature, increase in the initial grain size and decrease in the impurities content. The minimum grain size at which twinning can still operate in commercial-purity titanium was determined to be ~1μm. It was shown that rolling to a thickness strain of 93% at-196°C resulted in the formation of a microstructure with a grain/subgrain size ~80 nm.

Evolution of grain and subgrain structure during cold rolling of commercial-purity titanium

2011 ◽  
Vol 528 (9) ◽  
pp. 3474-3479 ◽  
Author(s):  
S.V. Zherebtsov ◽  
G.S. Dyakonov ◽  
A.A. Salem ◽  
S.P. Malysheva ◽  
G.A. Salishchev ◽  
...  
Keyword(s):  
Cold Rolling ◽  
Subgrain Structure ◽  
Commercial Purity ◽  
Commercial Purity Titanium ◽  
Purity Titanium

scholarly journals Dependences of Grain Size and Strain-Rate on Deformation Behavior of Commercial Purity Titanium Processed by Multi-Directional Forging

2019 ◽  
Vol 83 (12) ◽  
pp. 465-473
Author(s):  
S. Yamamoto ◽  
Y. Miyajima ◽  
C. Watanabe ◽  
R. Monzen ◽  
T. Tsuru ◽  
...  
Keyword(s):  
Grain Size ◽  
Strain Rate ◽  
Deformation Behavior ◽  
Commercial Purity ◽  
Commercial Purity Titanium ◽  
Purity Titanium

Hydrogen embrittlement of commercial purity titanium

2002 ◽  
Vol 44 (8) ◽  
pp. 1875-1888 ◽  
Author(s):  
C.L Briant ◽  
Z.F Wang ◽  
N Chollocoop
Keyword(s):  
Hydrogen Embrittlement ◽  
Commercial Purity ◽  
Commercial Purity Titanium ◽  
Purity Titanium

scholarly journals Commercial Purity Titanium Processed by Rotary-Die Equal Channel Angular Pressing Method

2005 ◽  
Vol 46 (9) ◽  
pp. 2098-2101 ◽  
Author(s):  
Akira Watazu ◽  
Ichinori Shigematsu ◽  
Aibin Ma ◽  
Kazutaka Suzuki ◽  
Tsunemichi Imai ◽  
...  
Keyword(s):  
Equal Channel Angular Pressing ◽  
Commercial Purity ◽  
Pressing Method ◽  
Angular Pressing ◽  
Commercial Purity Titanium ◽  
Purity Titanium
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